Patent Publication Number: US-7720073-B2

Title: System and/or method for bidding

Description:
BACKGROUND 
   1. Field 
   The subject matter disclosed herein relates to the transmission of digital objects in a data transmission network. 
   2. Information 
   Information exchange mechanisms using the Internet have been available for free for many services. To forward information from a source node to a destination node, one or more intermediary parties may forward the information over at least a portion of a path coupling the source node to the destination node. Such intermediary parties typically own, lease, control and/or operate equipment such as routers and/or the like for forwarding information according to a network protocol such as the Internet Protocol. The intermediary parties incur substantial costs in the deployment, maintenance and operation of equipment for the purpose of forwarding information to a destination node. 

   
     BRIEF DESCRIPTION OF THE FIGURES 
     Non-limiting and non-exhaustive embodiments of the present invention will be described with reference to the following figures, wherein like reference numerals refer to like parts throughout the various figures unless otherwise specified. 
       FIG. 1  is a schematic diagram of a data transmission network according to an embodiment. 
       FIG. 2  is a schematic diagram of a router that may be owned, leased, controlled and/or operated by an intermediary for transmitting at least a portion of a digital object to a destination node according to an embodiment. 
       FIG. 3  is schematic diagram of a data transmission network for transmitting a digital object to two or more destination nodes according to an embodiment. 
       FIG. 4  is a flow diagram illustrating a process to initiate transmission of a digital object from a source node according to an embodiment. 
       FIG. 5  is a flow diagram illustrating a process to act upon a bid request received at an intermediary according to an embodiment. 
       FIG. 6  is a schematic diagram of a data transmission network for transmitting a digital object from a source node to a destination node through two or more intermediaries. 
       FIG. 7  is a flow diagram illustrating a process to act upon a bid request received at an intermediary according to an embodiment. 
       FIG. 8  is a schematic diagram of a data transmission network comprising a first network to transmit a digital object from a source node to a destination node and second network to facilitate bidding among intermediaries. 
       FIG. 9  is a flow diagram illustrating a process to initiate transmission of a digital object to one or more destination nodes according to an embodiment of the data transmission network of  FIG. 8 . 
       FIG. 10  is a flow diagram illustrating a process to facilitate bidding for the service of forwarding a digital object to one or more destination nodes according to an embodiment of the data transmission network of  FIG. 8 . 
   

   DETAILED DESCRIPTION 
   Reference throughout this specification to “one embodiment” or “an embodiment” means that a particular feature, structure, or characteristic described in connection with the embodiment is included in at least one embodiment of the present invention. Thus, the appearances of the phrase “in one embodiment” or “an embodiment” in various places throughout this specification are not necessarily all referring to the same embodiment. Furthermore, the particular features, structures, or characteristics may be combined in one or more embodiments. 
   A “data transmission network” as referred to herein relates to infrastructure that is capable of transmitting data among nodes which are coupled to the data transmission network. For example, a data transmission network may comprise links capable of transmitting data between nodes according to one or more data transmission protocols. Such links may comprise one or more types of transmission media capable of transmitting information from a source to a destination. However, these are merely examples of a data transmission network and claimed subject matter is not limited in these respects. 
   In the transmission of data in a data transmission network, a “source node” may initiate transmission of data to one or more “destination nodes” coupled to the data transmission network. In one particular embodiment, although the claimed subject matter is not limited in this respect, a source node may initiate the transmission of data to the destination node based, at least in part, upon a destination address associated with the destination node. Here, according to a communication protocol of a particular embodiment, the source node may transmit data to the destination node in one or more “data packets” which are routed to the destination node through the data transmission network based, at least in part, on the destination address. However, these are merely examples of how data may be transmitted from a source node to a destination node in a data transmission network and claimed subject matter is not limited in these respects. 
   A node in a data transmission network may “forward” information to one or more other nodes in the data transmission network over data links. In one particular example, a first node may forward information to a second node by transmitting one or more data packets according to a communication protocol. Such data packets may comprise a header portion containing an address of an intended destination node and a payload containing forwarded information. If the second node is not the ultimate intended destination, the second node may also forward the data packets to a third node which comprises and/or is coupled to the ultimate intended destination node. However, these merely examples of how information may be forwarded in a data transmission network and claimed subject matter is not limited in these respects. 
   A “digital object” as referred to herein relates to information that is organized and/or formatted in a digitized form. For example, a digital object may comprise one or more documents, visual media and/or audio media, and/or combinations thereof. However, these are merely examples of the types of information that may be maintained in a digital object and claimed subject matter is not limited in this respect. Such a digital object may be maintained in a compressed format to enable efficient storage of the digital object in a storage medium and/or transmission of the digital in a data transmission network. In other embodiments, such a digital object may be encrypted for transmission in a secure communication channel. In one particular embodiment, although the claimed subject matter is not limited in this respect, a digital object may be formatted at a source node for transmission to one or more destination nodes. Also, a digital object may be transmitted to one or more destination nodes as one or more data packets routed to the one or more data nodes according to a communication protocol. However, these are merely examples of a digital object and claimed subject matter is not limited in these respects. 
   A “bid” as referred to herein relates to an expression of a proposal to perform a service. In one particular example, a customer and/or client may receive bids from more than one party competing for the business of the customer and/or client. A bid may specify terms under which a service may be performed such as, for example, price, quality, timeliness and/or reliability. However, these are merely examples of terms that may be expressed in a bid and claimed subject matter is not limited in this respect. Also, in some commercial contexts, acceptance of a bid by a customer and/or client may be binding on the parties. In other commercial contexts, however, acceptance of a bid by a customer and/or client, in and of itself, may not be binding. Here, additional actions by one or more parties may result in a binding arrangement. It should be understood that these are merely examples of a bid and claimed subject matter is not limited in this respect. 
   A “bid request” as referred to herein relates to an expression of an invitation to provide a bid for performing a service. In one particular example, such a bid request may specify a desired service to be performed by a service provider. In some embodiments, the bid request may specify some of the terms, but not necessarily all of the terms, under which a desired service is to be performed. However, these are merely examples of a bid request and claimed subject matter is not limited in these respects. 
   In response to receipt of a bid from a service provider for providing a service, a potential customer and/or client may provide an “acceptance message” to the bidding service provider. Such an acceptance message may express a willingness of the customer and/or client to receive services from the service provider according to at least some terms set forth in the received bid. However, this is merely an example of an acceptance message and the claimed subject matter is not limited in this respect. 
   According to an embodiment, two or more parties may exchange messages in the course of agreeing to terms under which a service may be provided according to a “negotiation protocol.” In one particular embodiment, although claimed subject matter is not limited in this respect, a negotiation protocol may define how parties express a bid, bid request and/or acceptance message. In another embodiment, parties may exchange messages according to a negotiation protocol until a particular predefined state and/or event defining closure. Here, such a closure may define agreed terms under which a service is to be provided. It should be understood, however, that these are merely examples of a negotiation protocol and claimed subject matter is not limited in these respects. 
   In forwarding a digital object from a source node to a destination node over a data transmission network, equipment which is owned, leased, controlled and/or operated by one or more “intermediaries” or “intermediary parties” may forward at least a portion of the digital object over at least a portion of the data transmission network toward the destination node. As illustrated below, the term “intermediary” may refer to a party that may forward a digital object over at least a portion of the data transmission network and/or equipment that is owned, leased, controlled and/or operated by the party for performing this service. 
   Equipment that is owned, leased, controlled and/or maintained by an intermediary may comprise equipment that is capable of transmitting information to and/or receiving information a data transmission network. Here, such equipment may comprise one or more “communication ports” capable of receiving information from a source node and/or transmitting information to a destination node over one or more data transmission mediums forming links in the data transmission network. Such a communication port may be capable of transmitting and/or receiving information from any one of several types of data transmission media such as, for example, cabling (e.g., optical, coaxial, unshielded twisted wire pair cabling, etc.) and/or wireless transmission media (e.g., by terrestrial or satellite links). However, these are merely examples of a communication port that may couple equipment which is owned, leased controlled and/or operated by an intermediary to a data transmission network, and claimed subject matter is not limited in these respects. 
   “Instructions” as referred to herein relate to expressions which represent one or more logical operations. For example, instructions may be “machine-readable” by being interpretable by a machine for executing one or more operations on one or more data objects. However, this is merely an example of instructions and claimed subject matter is not limited in this respect. In another example, instructions as referred to herein may relate to encoded commands which are executable by a processing circuit having a command set which includes the encoded commands. Such an instruction may be encoded in the form of a machine language understood by the processing circuit. Again, these are merely examples of an instruction and claimed subject matter is not limited in this respect. 
   “Storage medium” as referred to herein relates to media capable of maintaining expressions which are perceivable by one or more machines. For example, a storage medium may comprise one or more storage devices for storing machine-readable instructions and/or information. Such storage devices may comprise any one of several media types including, for example, magnetic, optical or semiconductor storage media. However, these are merely examples of a storage medium and claimed subject matter is not limited in these respects. 
   “Logic” as referred to herein relates to structure for performing one or more logical operations. For example, logic may comprise circuitry which provides one or more output signals based upon one or more input signals. Such circuitry may comprise a finite state machine which receives a digital input and provides a digital output, or circuitry which provides one or more analog output signals in response to one or more analog and/or digital input signals. Such circuitry may be provided in an application specific integrated circuit (ASIC) or field programmable gate array (FPGA). Also, logic may comprise machine-readable instructions stored in a storage medium in combination with processing circuitry to execute such machine-readable instructions. However, these are merely examples of structures which may provide logic and claimed subject matter is not limited in this respect. 
   An “agent” as referred to herein relates to a process that executes on a first device and is capable of communicating with a second device over a data transmission network. In one particular embodiment, for example, an agent process may collect information associated with the first device and enable transmission of the collected information to the second device. In another embodiment, an agent may receive control signals from the second device to enable remote control of at least one aspect of the first device. However, these are merely examples of how an agent may enable communication between devices and the claimed subject matter is not limited in these respects. In another embodiment, an agent may execute on a processor under the control of machine-readable instructions stored on a storage medium. In another embodiment, an agent may be executed on different types of structure that provide logic. However, these are merely examples of an agent and claimed subject matter is not limited in these respects. 
   A “quality of service” (“QoS”) as referred to herein relates to a characteristic of a data transmission service to provide data to a recipient within particular constraints. In particular examples, although claimed subject matter is not limited in this respect, QoS may refer to delivery of a service within expected bandwidth constraints, time constraints and/or error constraints. A quality of service may refer to a characteristic of a transmission control protocol/internet protocol (TCP/IP) type protocol, and/or a user datagram protocol/internet protocol (UDP/IP) type protocol. In one or more embodiments, a quality of service may refer to a threshold error transmission rate, for example where one or more data packets may not arrive, and/or where one or more data packets that do arrive may include one or more corrupted bits of information. In one or more embodiments, a quality of service may refer to where no errors and/or no error rate is acceptable, and/or to a threshold where the number of errors and/or the error rate may not exceed a predetermined value, and/or to a range within which a number of errors and/or an error rate may be acceptable, although the scope of claimed subject matter is not limited in this respect. In a particular embodiment, for example, a QoS may be associated with the transmission of a digital object from a source node to a destination node. Here, for example, a QoS may dictate that all or a portion of the digital object arrive at the destination node within a defined bandwidth limits, and/or within some time constraint, and/or with or without number of errors and/or within error rate limits. In another embodiment, a QoS may define, at least in part, an effective data rate at which a digital object is to be transmitted to the destination node. However, this is merely an example of how QoS may be applied in the transmission of a digital object and claimed subject matter is not limited in this respect. 
   Unless specifically stated otherwise, as apparent from the following discussion, it is appreciated that throughout this specification discussions utilizing terms such as “processing,” “computing,” “calculating,” “selecting,” “forming,” “enabling,” “inhibiting,” “identifying,” “initiating,” “receiving,” “transmitting,” “determining” and/or the like refer to the actions and/or processes that may be performed by a computing platform, such as a computer or a similar electronic computing device, that manipulates and/or transforms data represented as physical electronic and/or magnetic quantities and/or other physical quantities within the computing platform&#39;s processors, memories, registers, and/or other information storage, transmission, reception and/or display devices. Further, unless specifically stated otherwise, process described herein, with reference to flow diagrams or otherwise, may also be executed and/or controlled, in whole or in part, by such a computing platform. 
     FIG. 1  is a schematic diagram of a data transmission network  25  according to an embodiment. A source node  2  and destination nodes  18  through  24  may access data transmission network  25  using any one of several data transmission access technologies such as, for example, public switched telephone network (PSTN), digital subscriber line (DSL), coaxial/optical cable or wireless access (e.g., using satellite and/or terrestrial links). However, these are merely examples of how a node may obtain access to a data transmission network and claimed subject matter is not limited in these respects. Data transmission network  25  may be capable of transmitting data packets among nodes in a network topology according to an Internet Protocol (IP). However, this is merely an example of a communication protocol that may be used in transmission of all or portions of a digital object from a source node to a destination node and claimed subject matter is not limited in this respect. Here, in a particular embodiment illustrated in  FIG. 1 , source node  2  and destination nodes  18  through  24  may access data network  25  through the facilities of Internet service providers (ISPs)  10  and  16 . For example, source node  2  and/or destination nodes  18  through  24  may comprise subscribers of corresponding ISPs that enable access to data transmission network  25  for a subscription fee. However, an ISP is merely an example of how a source and/or destination node may access a data transmission network and claimed subject matter is not limited in this respect. 
   According to an embodiment, source node  2  and/or destination nodes  18  through  24  may comprise any one of several types of devices which are capable of transmitting and/or receiving digital objects. In one particular example, source node and/or destination nodes  18  through  24  may comprise a communication port (not shown) that is adapted for transmitting data to and/or receiving data from an ISP through a data transmission medium using one or more of the aforementioned access technologies. In addition to communication ports, source node  2  and/or destination nodes  18  through  24  may also comprise a computing platform employing a processor, one or more memory devices and appropriate input/output devices for communicating between processes executing on the processor and communication ports. Here, such processes executing on a computing platform may be controlled, at least in part, by machine-readable instructions stored in one or more memory devices of the computing platform. In one particular embodiment, a computing platform at source node  2  may execute one or more processes to create and/or format a digital object for transmission on data transmission network  25 . However, this is merely an example of how a source node  2  may create and/or format a digital object for transmission on a data transmission network and claimed subject matter is not limited in this respect. In another particular embodiment, a computing platform at a destination node may execute one or more processes to utilize a digital object received from data transmission network  25  through a communication port. However, this is merely an example of how a destination node may process a digital object received from a data transmission network and claimed subject matter is not limited in this respect. 
   According to an embodiment, equipment that is owned, leased, controlled and/or operated by intermediaries  12  may transmit digital objects between ISPs  10  and  16 . Links coupling the intermediary equipment to ISPs  10  and  16  may comprise any one of several data transmission mediums such as, for example, cabling (e.g., fiber optic, coaxial and/or unshielded twisted wire pair cabling) and/or wireless transmission media (e.g., using terrestrial and/or satellite based links). However, these are merely examples of transmission media that may be used to transmit digital objects in a data transmission network and claimed subject matter is not limited in these respects. 
   As illustrated in  FIG. 1 , ISP  10  may transmit a digital object to ISP  16  in any one of multiple paths comprising at least one corresponding intermediary  12 . Here, according to a particular embodiment, ISP  10  may transmit a digital object to ISP  16  through any one of the intermediaries  12   a ,  12   b  and/or  12   c . As discussed below, according to a particular embodiment, source node  2  and/or ISP  10  may select a particular intermediary  12  to forward the digital object to the ISP  16  based, at least in part, upon one or more bids received from intermediaries  12   a ,  12   b  and/or  12   c . However, this is merely an example of how an intermediary may be selected for forwarding a digital object and claimed subject matter is not limited in this respect. 
   According to an embodiment, although claimed subject matter in not limited in this respect, intermediaries  12  may route digital objects between ISPs  10  and  16  in one or more data packets formatted according to a particular network protocol such as an Internet Protocol (IP). Such data packets may be forwarded on data links connecting intermediaries  12  and ISPs according to any one of several data link layer protocols such as, for example, Ethernet, Asynchronous Transfer Mode (ATM), Frame Relay and/or Synchronous Optical NETwork/Sychronous Digital Hierarchy (SONET/SDH) data link protocols. In embodiments employing wireless communication links, data packets may be forwarded on such wireless communication links according to any one of several satellite and/or terrestrial wireless data link protocols such as, for example, IEEE Stds. 802.11, and 802.16. However, these are merely examples of data link protocols that may be used to forward data packets in a data transmission network and claimed subject matter is not limited in this respect. 
   According to an embodiment, an intermediary  12  may comprise one or more routers for forwarding data packets originating at source node  2  to destination nodes.  FIG. 2  is a schematic diagram of a router  28  which may be owned, leased and/or operated at an intermediary for transmitting at least a portion of a digital object to a destination node according to an embodiment. Router  28  may comprise one or more ingress communication ports  24  to receive data packet communications according to one or more of the aforementioned protocols. Here, one or more of ingress communication ports  24  may be capable of receiving all or a portion of a digital object from ISP  10  (and originating at source node  2 ). Router  28  may also comprise one or more egress communication ports  26  to transmit data packet communications according to one or more of the aforementioned protocols. Here, one or more of egress communication ports  26  may be capable of transmitting all or a portion of a digital object to ISP  16  (to then be forwarded to one or more destination nodes). 
   According to an embodiment, router  28  may comprise logic to determine how to forward packets received on ingress communication ports  24  to egress communication ports  26 . For example, router  28  may determine an egress communication port  26  for forwarding a received data packet based, at least in part, on information associated with the received data packet such as, for example, a destination address. Here, according to a particular embodiment, router  28  may determine an egress port  26  for forwarding the received data packet according to one or more look up tables associating destination IP address with egress ports  26 . However, this is merely an example of how a router may determine an egress port for forwarding a data packet and claimed subject matter is not limited in this respect. Notwithstanding the existence of a valid destination address associated with a received data packet, according to an embodiment, router  28  may also select whether or not to forward a received data packet based, at least in part, on information such as destination and/or source associated with the data packet, or other information associated with the data packet. 
   According to an embodiment, the aforementioned logic of router  28  to control routing data packets from an ingress communication port  24  to an egress communication port  26  may comprise one or more computing platforms comprising one or more processors and memory devices. The memory devices may comprise machine-readable instructions to execute on the one or more processors for controlling the routing of data packets. Alternatively, router  28  may comprise one or more ASIC devices to control routing, and/or combinations of one or more ASIC devices and one or more computing platforms to control routing. However, these are merely examples of logic that may be employed in a router for controlling forwarding of data packets and claimed subject matter is not limited in these respects. 
   According to an embodiment, an intermediary  12  ( FIG. 1 ) may employ more than one router  28  to forward a digital object to a destination node. A digital object received from source node  2  at a first router may be forwarded to a second router where both first and second routers are owned, leased, controlled and/or operated by intermediary  12 . Here, the first router may receive the digital object from the ISP  10  and forward the received digital object to the second router either directly to the second router or via one or more other routing devices. The second router may then forward to ISP  16  the digital object received from the first router. However, this is merely an example of how an intermediary may employ multiple routers for forwarding a digital object from a source node to a destination node, and claimed subject matter is not limited in this respect. 
   According to an embodiment, the intermediaries  12  and/or ISPs  10  and  16  may employ multiprotocol label switching (MPLS) according to the MPLS Architecture set forth in Internet Engineering Task Force (IETF), Network Working Group, RFC 3031, 2001. Here, ISP  10  may comprise a “label edge router” (LER) that is capable of assigning label values to packets received from source node  2  for transmission to a destination node. One or more routers of the intermediaries  12  may comprise a “label switch router” (LSR) to make forwarding decisions for received data packets based, at least in part, upon label values assigned to the received data packets. At a network hop between ISP  10  and ISP  16 , an LSR associated with an intermediary  12  may strip off an existing label of a received data packet and apply a new label indicating how the next downstream LSR is to forward the data packet to a destination. LSRs coupled to forward a digital object from ISP  10  to ISP  16  may then form a Label Switch Path (LSP) determined, at least in part, according to labels (e.g., selected from a hierarchy of labels such as a label stack) assigned to data packets transporting a digital object at network hops between ISP  10  and ISP  16 . However, this is merely an example of how a digital object may be transmitted between nodes on a data transmission network using MPLS and claimed subject matter is not limited in these respects. 
     FIG. 3  is schematic diagram of a data transmission network  100  for transmitting a digital object to two or more destination nodes according to an embodiment. A source node  102  may transmit a digital object to more than one destination node coupled to one or more ISPs  116 . Two or more intermediaries  112  may then be employed to forward the digital object to two or more destinations. According to an embodiment, a digital object formatted for transmission to a destination node may be copied at either the ISP  110  or an intermediary  112  for transmission to multiple destinations. 
   According to an embodiment, a digital object may be segmented and/or partitioned in to smaller sub-digital objects for transmission through two or more intermediaries. Here, in a particular embodiment, a sub-digital object may range in size from being as large as the larger digital object, as small as a null object containing no data, or of an intermediate size containing, for example, packet, sub-packet, aggregation of packets and/or an aggregation of bits forming the sub-digital object. According to an embodiment, although claimed subject matter is not limited in this respect, sub-digital objects forming a digital object may be independently transmitted through a data transmission network to a destination using the same or different paths. Subject to any QoS requirements, for example, intermediaries may bid for the service of forwarding individual sub-digital objects of a larger digital object as described herein. Here, for example, a digital object may be sufficiently large such that it may be desirable to split the digital object into one or more sub-digital objects, for example at source node and/or at one or more of intermediary nodes, where one or more of the sub-digital objects may be provided with its own individual routing requirements, quality of service, routing paths, and so on, and where the sub-digital objects may be reassembled at one or more of intermediary nodes and/or one or more of destination nodes. Such a sub-digital object concept in one or more embodiments may be analogous to data transfer utilizing packets, where the sub-digital objects may be at a higher level of organization that a packets, but may be at a lower level of organization that of a larger digital object. For example, a multimedia object may be split into a video sub-digital object and an audio sub-digital object, and/or a multimedia object may be split into a sub-digital objects corresponding to the scenes contained in the multimedia object, although the scope of claimed subject matter is not limited in this respect. An example of such a digital object that may be suitable for being split up into one may be where the digital object is a movie. In one or more embodiments, a transmission of such an object may include a multiple input, multiple output (MIMO) transmission system and/or a spatial division, multiple access system, for example where two or more sub-objects may be transmitted in parallel in two or more links. In one particular embodiment, a network that may be suitable for splitting a digital object into one or more sub-digital objects may comprise at least a portion of the network operating in compliance with an Institute of Electrical and Electronics Engineers (IEEE) 802.16 type standard such as a WiMax type standard, although the scope of claimed subject matter is not limited in this respect. 
   As in data transmission network  25  illustrated above, an intermediary  112  may comprise one or more routers (such as router  28 , for example) to forward data packets to a destination node. Also, data transmission network  100  may employ MPLS and select particular intermediaries for forwarding a digital object to destinations. 
   In the particular embodiment shown in  FIG. 3 , a single intermediary  112   b  may be capable of forwarding a digital object from ISP  110  to destination nodes coupled to any of the ISPs  116   a ,  116   b  and/or  116   c . On the other hand, neither intermediary  112   a  nor intermediary  112   c  may, by itself, be capable of forwarding a digital object to destination nodes coupled to all three ISPs  116   a ,  116   b  and  116   c . To forward the digital object to destination nodes coupled to all three ISPs, the ISP  110  and/or source node  102  may select either the intermediary  112   b , or intermediaries  112   a  and  112   c.    
   According to embodiments of data transmission networks shown in  FIG. 1  and/or  FIG. 3 , an intermediary may incur a cost for forwarding a digital object from in at least a portion of a data transmission network. To offset such a cost, an intermediary may receive compensation from a party associated with a source node, ISP and/or destination in exchange for forwarding a digital object over a portion of the network. According to an embodiment, an intermediary may provide a bid specifying terms under which the intermediary would forward a digital object over at least a portion of a data transmission network. A party that is to compensate an intermediary may select from among multiple bids for the business of forwarding the digital object over at least a portion of the network. However, this is merely an example embodiment and claimed subject matter is not limited in these respects. 
   According to an embodiment, any node such as intermediary nodes and/or ISP acting on behalf of another node such as source node, intermediary nodes, ISP and/or destination node  118 , for example, may request transmission of a digital object. Likewise, a source node and/or destination node may together request and/or otherwise agree to transmit a digital object, for example as a result of a handshake between the source node and/or destination node, and/or between at least one of the source node and/or destination node, intermediary nodes, and/or one or more proxy nodes. In one or more embodiments, a handshake may refer to a challenge handshake authentication protocol (CHAP) type authentication between a network server and a client device, although the scope of claimed subject matter is not limited in this respect. A handshake may occur via direct communication between two or more nodes, and/or alternatively a handshake may occur via indirect communication between two or more nodes, for example using electronic mail or other suitable protocol. In one or more embodiments, a “proxy server” may refer to a server, node, and/or client device that may operate to provide, implement, process and/or intercept requests on behalf of given other server, node, and/or client device, and/or to operate interposed between a first server, node, and/or client device and second server, node, and/or other client device. Such a proxy sever may operate to provide, implement, process, and/or intercept a request on behalf of and/or in lieu of at least one of such a server, node, and/or client device, and/or may operate as an agent of at least one of such a server, node, and/or client device, and in one or more embodiments may appear to other servers, nodes, and/or client devices on a data transmission network as though it were in fact the server, node, and/or client device for which such a proxy may be acting as an agent thereof. Such a proxy server and/or an agent may be implemented on any one or more of a source node, source ISP, intermediary nodes, destination ISP, and/or destination nodes, and/or on other nodes on a data transmission network. In one or more embodiments, such a proxy server and/or agent may be utilized to implement one or more specialized functions as part of the overall process and/or processes for transmitting a digital object via a data transmission network. For example, if a digital object were a larger sized object that could be partitioned into one or more smaller sized sub-digital objects and/or packets for more efficient transmission, a proxy server dedicated to such partitioning of a digital object may be utilized. Other such specialized functions of a proxy server and/or agent may exist, for example compression, decompression, recombining, and so on. However, these are merely examples of how a proxy server and/or agent may operate on a data transmission network, and the scope of claimed subject matter is not limited in these respects. 
     FIG. 4  is a flow diagram illustrating a process  200  to initiate transmission of a digital object from a source node according to embodiments of data transmission networks  25  and  100 . All or some portions of process  200  may be performed by logic at a source node. In one particular embodiment, as illustrated below, portions of process  200  may be performed at a proxy server (e.g., at an ISP or other unidentified node in a data transmission network) that is capable of communicating with a source node and one or more intermediaries. At block  202 , a source node may form a digital object for transmission to one or more destination nodes. In a particular embodiment, a computer operator may form the digital object through interactions with a graphical user interface (GUI) of a computing platform associated with and/or coupled to the source node. However, this is merely an example of how a digital object may be formed and claimed subject matter is not limited in these respects. In one particular embodiment, the digital object may be formatted into one or more data packets according to a network protocol such as the IP protocol. As such, the one or more data packets may comprise a header portion with a destination IP address associated with a destination node. If the digital object is to be transmitted to more than one destination node, block  202  may format multiple sets of data packets for corresponding destination nodes with corresponding destination IP addresses. According to particular embodiments, although claimed subject matter is not limited in these respects, such multiple sets of data packets may be copied for transmission to corresponding multiple destination at a source node, ISP and/or intermediary. However, these are merely examples of where copies of data packets of digital object may be made for transmission to multiple destinations, and claimed subject matter is not limited in these respects. 
   A particular intermediary in a data transmission network may or may not be capable of transmitting a digital object to a destination node. In the particular embodiment of data transmission network  100  shown in  FIG. 3 , for example, there is no link connecting intermediary  112   a  with ISP  116   c , and no link connecting intermediary  112   c  with ISP  116   a . Accordingly, intermediary  112   a  may be deemed incapable of forwarding digital objects to destination nodes  118   c ,  120   c  and/or  122   c . Likewise, intermediary  112   c  may be deemed incapable of forwarding digital objects to destination nodes  118   a ,  120   a  and  122   a . In other embodiments, an intermediary may or may not be capable of forwarding a digital object to a destination based, at least in part, on other factors regardless of whether the intermediary is connected to a source and/or destination node by a link. Here, for example, such an intermediary node may be deemed incapable based, at least in part, on known equipment failures, inability to forward the digital object according to a desired QoS, and the like. However, these are merely examples of how and/or why an intermediary may be incapable of forwarding a digital object to destination and claimed subject matter is not limited in these respects. 
   At block  204  the source node and/or a proxy server may identify intermediaries that are capable of forwarding a digital object to one or more destination nodes. In one embodiment, a source node and/or proxy server may identify intermediaries that are capable of forwarding a digital object based, at least in part, on information in a database. Such a database may be maintained at a source node and/or proxy server and may identify particular intermediaries that are connected to the source node and capable of receiving digital object for forwarding. Such a database may also associate information with intermediaries such as, for example, capability to forward digital objects while achieving a certain QoS, operational status (e.g., functioning, down for maintenance, malfunctioning, etc.) and information indicative of destinations to which intermediaries may forward digital objects. However, this is merely an example of information that may be associated with intermediaries in a database for the purpose of identifying intermediaries which are capable of forwarding digital object to a destination and claimed subject matter is not limited in this respect. 
   At block  206 , a source node and/or proxy server may initiate the transmission of bid requests to one or more intermediaries, requesting bids for a service of forwarding the digital object to one or more destination nodes. Here, a bid request may be transmitted through an in-band management channel of links that carry data packets of digital objects transmitted between a source and an intermediary. Alternatively, a bid request may be transmitted to the intermediary in a link that is separate from a link carrying digital objects. A source node and/or proxy server may transmit bid requests to intermediaries according to any one of several communication protocols. In one particular embodiment, for example, a source node and/or proxy server may transmit bid request in one or more data packets using a user datagram protocol/Internet protocol (UDP/IP). However, these are merely examples of how a source node and/or proxy server may transmit a bid request to one or more intermediaries and claimed subject matter is not limited in these respects. 
   According to an embodiment, a digital transmission form (DTF) may comprise metadata associated with a digital object that may be separately stored, represented and/or transmitted independently of the associated digital object. In particular embodiments, although claimed subject matter is not limited in this respect, DTFs associated with digital objects may be transmitted among nodes in a data transmission network (e.g., source node, ISPs and/or intermediaries) using the data paths used for transmitting the digital objects. In alternative embodiments, DTFs associated with digital objects may be transmitted among nodes in a data transmission using data paths that are distinct from data paths used for transmitting digital objects. However, these are merely examples of how DTFs may be transmitted among nodes in a data transmission network and claimed subject matter is not limited in these respects. 
   According to a particular embodiment, a bid request may be formatted as DTF that may be transmitted in one or more messages according to a negotiation protocol. Here, a DTF may comprise predefined fields that specify terms of a bid request for the service of transmitting a digital object to a destination node. Such predefined fields may be used for providing information to a bidding party such as, for example, size of the digital object to be transmitted (e.g., in bits, bytes, cells, packets, etc.), destination address(es), QoS, compression format, security, encryption, billing account number and/or the like. Alternatively, a DTF may comprise a reference to a pre-defined field definition schema and/or the schema itself, and/or the field values expressed in a format, e.g., XML. However, these are merely examples of predefined fields that may be used in DTF for providing a bid request and claimed subject matter is not limited in these respects. 
   As pointed out above, a DTF may facilitate a process of bidding for a service of forwarding an associated digital object to a destination. In addition to forwarding digital objects as consequence of bidding, in particular embodiments, although claimed subject matter is not limited in this respect, a data transmission network may permit the forwarding of other data traffic that does not require acceptance of a bid as a consequence of formation and/or transmission of a DTF. Here, for example, parties may have existing agreements and/or routes to forward traffic that obviates a need for bidding. However, this is merely an example of how a data transmission network may forward data traffic without the use of a DTF and claimed subject matter is not limited in this respect. 
   As discussed above, a source node may forward a digital object to more than one destination node. Also, as pointed out above, certain intermediaries may not be capable of forwarding a digital object to all intended destination nodes. Accordingly, in a particular embodiment, different bid request messages may be forwarded to different intermediaries based, at least in part, on known abilities of particular intermediaries in forwarding the digital object to particular destinations (e.g., as determined at block  204 ). Referring to the example of  FIG. 3 , according to a particular embodiment, source node  102  may format a digital object for transmission to destination nodes  118   a ,  118   b  and  118   c . Intermediary  112   a  may receive one or more bid requests for forwarding the digital object to destination nodes  118   a  and  118   b , but not for forwarding the digital object to destination node  118   c . Likewise, intermediary  112   c  may receive one or more bid requests for forwarding the digital object to destination nodes  118   b  and  118   c , but not for forwarding the digital object to destination node  118   a.    
   In embodiments illustrated above, block  204  may identify one or more intermediaries that are capable of forwarding a digital object to a destination node. In alternative embodiments, however, block  206  may forward bid requests to any identifiable intermediary nodes, regardless of whether such intermediary nodes are determined to be capable of providing a desired service. This enables the intermediaries to determine for themselves as to whether they are capable forwarding the digital object to the destination under the terms of the bid. Accordingly, use of block  204  in identifying capable intermediaries is merely an optional embodiment, and claimed subject matter is not limit in these respects. 
   After a time period following transmission of bid requests to intermediaries at block  206 , source node and/or proxy server may receive one or more bids from one or more intermediaries expressing an ability and/or willingness to forward a digital object to one or more destination according to terms set forth in the one or more received bids. Such terms in the bid may include, for example, price, QoS, expected delivery time and/or maximum latency. However, these are merely examples of terms that an intermediary may provide in a bid for the transmission of a digital object to one or more destination, and claimed subject matter is not limited in this respect. 
   Upon receipt of one or more bids from one or more intermediaries, a source node and/or proxy server may process received bids at block  208 . Block  208  may select one or more intermediaries to forward the digital object to one or more destination nodes based, at least in part, on one or more received bids. In one particular embodiment, to forward a digital object to a particular destination node, block  208  may select an intermediary specifying a lowest price in its bid for this service. Alternatively, block  208  may select an intermediary specifying a lowest bid for a minimum specified QoS associated with forwarding the digital object to the destination node. In one particular embodiment, although claimed subject matter is not limited in this respect, acceptance and/or rejection of a bid, and/or termination of a biding process may be determined, at least in part, on a predetermined negotiation protocol. Here, for example, such a negotiation protocol may determine a format for bids, mechanisms to reject bids arriving late (e.g., after a timeout period), rejection of bids because a party soliciting a bid has pre-existing relationships with other intermediaries to provide a service of forwarding a digital object, and/or the like. 
   A negotiation protocol may also define multiple message types including, for example, bid requests, bids, acknowledgement of a bid request and/or bid, rejection and/or acceptance of a bid, broadcasting results of a bid request and subsequent bids, and/or changes for future bidding for the service of forwarding a digital object. However, these are merely examples of messages that may be defined as part of a negotiation protocol and claimed subject matter is not limited in these respects. 
   Upon selecting an intermediary to forward a digital object to a destination node, the source node and/or proxy server may initiate the selected intermediary to forward data packets carrying the digital object to one or more destination nodes. In a particular embodiment employing the aforementioned MPLS protocol, for example, the source node and/or proxy server may initiate a node in a data transmission network (e.g., source node or ISP connected to source node) to act as an LER. Here, such an LER may associate data packets carrying a digital object with a switch label identifying the digital object and how the digital object is to be processed by a recipient LSR. The LER may then forward data packets carrying the digital object to an ingress communication port of router acting as an LSR and which is owned, leased, controlled and/or operated by the selected intermediary. However, this is merely an example of how such a selected intermediary may be set to forward data packets carrying a digital object to a destination node and claimed subject matter is not limited in this respect. 
     FIG. 5  is a flow diagram illustrating a process embodiment  300  to act upon a bid request received at an intermediary according to an embodiment. Process embodiment  300  may be executed by logic associated with an intermediary such as, for example, a computer system as illustrated above. However, this is merely an example of logic that is capable of executing a process to act upon a bid request and claimed subject matter is not limited in this respect. According to an embodiment, an intermediary may receive a message comprising a bid request (e.g., in the form of a DTF) at block  302 . As described above, a bid request may be transmitted from a source node and/or proxy server according to a communication protocol using an in-band message transmitted in links for transmitting digital objects. As such, an intermediary may receive a bid request at an ingress communication port of a router that is capable of receiving data packets carrying digital objects from a source node. Alternatively, an intermediary may receive a bid request at a communication port that is coupled to a link of a different network that is dedicated for transmitting and/or receiving messages comprising bid requests, bids and/or other management messages. However, these are merely examples of how a bid request may be received at an intermediary and claimed subject matter is not limited in this respect. 
   Block  304  may determine terms for a bid for a service of forwarding a digital object to a destination node. As illustrated above, such a bid may specify terms and/or conditions under which an intermediary may agree to for the business of forwarding a digital object to a destination node. Block  304  may determine these terms and/or conditions based, at least in part, on capital equipment costs (e.g., for routers and related support equipment), operating costs (including, for example, asset maintenance, rent, power, personnel), current and/or predicted capacity, current and/or predicted asset utilization, prior experience and/or history, pre-existing contracts with other parties, vendor preference, anticipated bid behavior from competing intermediaries for the transmission of the digital object to the destination, anticipated demand and/or ability to provide a particular QoS for the transmission of the digital object. However, these are merely examples of information that an intermediary may utilize in determining terms for a bid for the transmission of a digital object to a destination node and claimed subject matter is not limited in this respect. 
   Following determining terms of a bid at block  304 , an intermediary may transmit the bid to a source node and/or proxy server at block  306 . Such a bid may be transmitted to a source node and/or proxy server through a communication port which is capable of receiving digital objects from the source node and/or transmitting digital objects to destinations in the data transmission network. Alternatively, such a bid may be transmitted in an out-of-band message in a different data link. However, these are merely examples of links that may be used for transmitting a message comprising a bid and claimed subject matter is not limited in these respects. In another embodiment, the message comprising a bid may be transmitted according to any one of several protocols such as, for example, UDP/IP and/or a proprietary protocol. However, this is merely an example of a communication protocol that may be used for the transmission of a bid to a source node and/or proxy server and claimed subject matter is not limited in this respect. 
   It should be understood that, according to a particular embodiment, an intermediary receiving a bid request at block  302  may choose not to respond to the bid request for any one of several reasons such as, for example, an inability to forward the digital object to a specified destination node and/or insufficient capacity to satisfy requested QoS service, a policy to not do business with this particular solicitor or class of solicitors and/or the like. Alternatively, an intermediary may transmit a message to a source node and/or proxy server indicating that the intermediary will not bid for the business of forwarding the digital object at issue. In another embodiment, an intermediary may also transmit a reason for not participating in the bidding process. 
   Following transmission of a bid at block  306 , process  300  may wait for a response from a source node and/or proxy server indicating that the transmitted bid has either been accepted or rejected. Such an acceptance message from a source node and/or proxy server may take the form of a message transmitted in-band along with digital objects or as an out-of-band message in a separate network. In one embodiment, for example, diamond  308  may determine acceptance of a bid upon receipt of one or more data packets at an ingress communication port carrying at least a portion of the digital object and addressed to the destination node, providing an implied acceptance message. In an alternative embodiment, diamond  308  may determine a rejection of the bid if no such data packets carrying at least a portion of the digital object are received at an ingress communication port within a predetermined period following transmission of the bid at block  306 . In another alternative embodiment, the diamond  308  may determine whether the bid is accepted or rejected based on an explicit acceptance message or rejection message received from an in-band and/or out-of-band data link. However, these are merely examples of how an intermediary may determine acceptance and/or rejection of a bid for a service of forwarding a digital object and claimed subject matter is not limited in these respects. 
   In response to an indication that a bid has been accepted, diamond  308  may enable forwarding a digital object to a destination node at block  310 . According to an embodiment in which an intermediary comprises one or more routers capable of acting as LSRs in an MPLS network, for example, block  310  may enable one or more routers in an LSP to forward data packets to one or more destination nodes. Data packets identified as carrying the digital object based upon associated switch labels may be forwarded through the LSP toward the one or more destination nodes. According to an embodiment, the intermediary may receive data packets carrying a digital object at an ingress communication port of an initial router. Data packets carrying a digital object along an LSP (or possibly multiple LSPs for more than one destination node) may traverse one or more routers until being transmitted from an egress port of a final router toward the destination node. In an alternative embodiment, an Interior Gateway Protocol (IGP) may be used for routing traffic. However, these are merely examples of how an intermediary may enable forwarding of a digital object to a destination and claimed subject matter is not limited in these respects. 
   In response to an indication that a bid has been rejected, diamond  308  may inhibit forwarding a digital object to the destination node at block  312  if the bid is rejected. In one particular embodiment, for example, block  312  may inhibit forwarding data packets received at an ingress port of a router by, for example, dropping packets being received at an ingress port of a router without informing a sender. However, this is merely an example of how an intermediary may inhibit the forwarding of a digital object to a destination node and claimed subject matter is not limited in these respects. 
   As pointed out above, a bid request and/or related bid may relate to forwarding a digital object to multiple destination nodes. Here, in a particular embodiment, a source node and/or proxy server may accept a portion of a bid for forwarding a digital object to one destination node and reject a portion of the bid for forwarding the digital object to one or more other destination nodes. Accordingly, in this particular embodiment, diamond  308  may enable forwarding of a digital object to some destination nodes (relating to an accepted portion of a bid) and inhibit forwarding of the digital object to other destination nodes (relating to a rejected portion of the bid). However, this is merely an example of how an intermediary may process a partial acceptance of a bid for a service of forwarding a digital object and claimed subject matter is not limited in these respects. 
     FIG. 6  is a schematic diagram of a data transmission network  400  for transmitting a digital object from a source node to one or more destination nodes through two or more intermediaries. A source node  402 , coupled to data transmission network  400  through ISP  410 , may desire forwarding a digital object to a destination node coupled to ISP  416 . ISP  410  may forward a digital object to intermediaries  412   a ,  412   b  and/or  412   c  without any intervening network hops. However, intermediaries  412   a ,  412   b  and/or  412   c  may not necessarily be capable of forwarding a digital object to a destination node without assistance of one or more downstream intermediaries. Here, no single intermediary  412   a ,  412   b  and/or  412   c  may necessarily be capable of forwarding a digital object to ISP  416  without forwarding the digital object through at least one downstream intermediary  413   a ,  413   b ,  413   c ,  413   d ,  413   e ,  413   f  and/or  413   g . Likewise, no single intermediary  413   a ,  413   b ,  413   c ,  413   d ,  413   e ,  413   f  and/or  413   g  may be capable of forwarding a digital object to ISP  416  without routing the digital object through an intermediary  415   a ,  415   b  and/or  415   c.    
   In response to a request for a bid for the service of forwarding a digital object from ISP  410  to a destination node  404 ,  406  and/or  408 , according to a particular embodiment, an intermediary  412   a ,  412   b  and/or  412   c  may provide a bid comprising terms which are based, at least in part, upon a cost associated with forwarding the digital object through one of downstream intermediaries  413   a  through g. While executing process  300  ( FIG. 5 ), according to a particular embodiment for responding to the request for a bid, at block  304  an intermediary  412   a ,  412   b  and/or  412   c  may transmit a bid request to one or more downstream intermediaries  413   a  through g. Upon receiving bids from one or more of downstream intermediaries, intermediary  412   a ,  412   b  and/or  412   c  may determine terms for a bid for the transmission of the digital object received from the ISP  410  based, at least in part, on terms from one or more bids received from one or more downstream intermediaries. Intermediary  412   a ,  412   b  and/or  412  may then complete process  300  as illustrated above. In determining bids in response to bid requests from intermediaries  412   a ,  412   b  and/or  412   c , intermediaries  413   a  through g may similarly request bids of and/or receive bids from downstream intermediaries  415   a ,  415   b  and/or  415   c  as illustrated above. 
     FIG. 7  is a flow diagram illustrating a process embodiment  450  to act upon a bid request received at an intermediary according to an embodiment. According to particular embodiment, process embodiment  450  may be executed by one or more of intermediaries  412  in response to a bid request from a source node and/or proxy server. In another embodiment, process embodiment  450  may be executed by one or more of the downstream intermediaries  413  in response to a bid request from an intermediary  412 . At block  452 , an intermediary may receive a bid request as illustrated above with reference to block  302  of  FIG. 5 . In the case of receiving a bid request at a downstream intermediary  413 , however, it should be understood that such a bid request may originate from an intermediary  412 . Block  454  may identify one or more downstream intermediaries capable of transmitting the digital object to the destination node as illustrated above with reference to block  204  of process  200 . 
   Block  456  may formulate and transmit a downstream bid request to downstream intermediaries identified in block  454 . The terms set forth in such a bid request may be based, at least in part, upon terms set forth in one or more bid requests received at block  452 . In a particular embodiment, for example, a bid request formulated at block  456  may characterize a digital object, specify one or more destination nodes and indicate how the digital object is to be transmitted to the one or more destination nodes as described above with reference to block  206  in  FIG. 4 . Bid requests formulated at block  456  may then be transmitted to one or more downstream intermediaries as an in-band and/or out-of-band message as illustrated above with reference to block  206  above. 
   At block  458 , an intermediary may receive one or more bids in response to bid requests transmitted at block  456 . Such bids received at block  458  may express terms such as those expressed in bids received at block  208  as illustrated above. Here, process embodiment  450  may wait for responses following transmission of the bid requests at block  456  for a predetermined period following a transmission of one or more bid requests. Then, block  460  may determine terms for one or more bids to respond to the bid request received at block  452 . Terms set forth in these bids may be based, at least in part, upon terms set forth in one or more bids received at block  456 . Here, for example, block  460  may determine a price associated with a bid responsive to the bid request received at block  452  based, at least in part, a cost associated with one or more of the bids received at block  458 . However, these are merely examples of how terms of a bid for a service of transmitting a digital object to a destination may be determined and claimed subject matter is not limited in this respect. 
   The discussion above illustrates a process by which intermediaries may bid for the business of providing a service of forwarding digital objects to destination nodes. In particular embodiments, a data transmission network may transport digital objects in data packets over links connecting a source node and/or ISP with intermediaries, and connecting intermediaries with destination nodes. In additional embodiments, a separate network, apart from a data transmission network used for forwarding digital objects, may facilitate an exchange of management messages such as, for example, bid requests, bids, and their status. This may enable centralized deployment of the activities of bidding and billing for the services of forwarding digital objects over the data transmission network. 
     FIG. 8  is a schematic diagram of a data transmission network  500  comprising a first network to transmit a digital object from a source node to a destination node, and second network to facilitate bidding among intermediaries. A source node  502  may be coupled to the data transmission network  500  by an ISP  510 . Source node  502  may transmit a digital object to one or more destination nodes  518  through ISP  510 , intermediaries  512  and/or ISP  516 . For the purpose of illustration, nodes are connected by data links of the first network represented with solid lines and nodes are connected by data links of the second network represented by broken lines. According to a particular embodiment, data links represented by solid lines are capable of transmitting a digital object toward a destination over a corresponding portion of the first network. Also, data links represented by broken lines may be capable of transmitting control messages, such as, for example, bid requests, bids and acceptance messages, between a server  522  and other nodes in the data transmission network  500 . 
   According to an embodiment, source node  502  may transmit bid requests to intermediaries  512  for a service of forwarding a digital object to one or more destination nodes  508  as discussed above. The intermediaries  512  may also respond to such bids for this service as discussed above. In this particular embodiment, however, server  522  may communicate with source node  502 , ISP  510  and/or intermediate nodes through data links in the second network to, among other things, transmit bid requests to and/or receive bids from intermediaries  512 . 
   According to an embodiment, an agent process embodiment  520  may execute on one or more intermediaries  512  to communicate with server  522 . For example, in a particular embodiment, an instance of agent process embodiment  520  may be executed by logic such as machine-readable instructions capable of executing on a computer system operated by one or more intermediaries  512 . Also, intermediaries  512  may comprise out-of-band communication ports which are capable of communicating on the second network that are distinct from communication ports used for forwarding digital objects on the first network. In a particular embodiment, agent process  520  may communicate with server  522  through such out-of-band communications ports. 
   According to an embodiment, links of the second network may comprise any one of several types of transmission media such as, for example, any of the aforementioned cabling and/or wireless mediums. Again, however, these are merely examples of transmission media that may used for transmitting messages in the second network and claimed subject matter in not limited in these respects. According to a particular embodiment, messages may be transmitted in links of the second network using any one of the aforementioned data link layer protocols, and may be formatted for transmission on the second network according to any one of the aforementioned network protocols. Again, however, these are merely examples of data link and/or network protocols and claimed subject matter is not limited in these respects. 
   According to an embodiment, a process of bidding for the service of forwarding a digital object from source node  502  to one or more destination nodes  518  may be governed, at least in part, by server  522  and/or agent process embodiment  520 .  FIG. 9  is a flow diagram illustrating a process  600  to initiate transmission of a digital object to one or more destination nodes according to an embodiment of data transmission network  500 . In a particular embodiment, for example, process embodiment  600  may be performed by logic at the source node  502  and/or ISP  510 . At block  602 , a digital object may be formulated as illustrated above with reference to block  202  of  FIG. 4 . However, rather than forwarding bid requests directly to intermediaries, process  600  may forward a bid request to sever  522  (e.g., over the second network). As illustrated below with reference to  FIG. 10 , server  522  may then facilitate a bidding process among intermediaries  512  for the service of forwarding the digital object to a destination node and selecting an intermediary for forwarding the digital object. Block  606  may receive information (e.g., over the second network) from server  522  which enables forwarding of the digital object to the selected intermediary. For example, block  606  may receive a network address and/or some other identifier associated with a selected intermediary  512  from which the ISP  510  may transmit data packets carrying a digital object to the selected intermediary  512 . Block  608  may then initiate transmission of the digital object to a selected intermediary based, at least in part, upon the forwarding instructions received at block  606 . 
     FIG. 10  is a flow diagram illustrating a process embodiment  700  facilitating bidding for the service of forwarding a digital object to one or more destination nodes according to a particular embodiment of a data transmission network of  FIG. 8 . Block  702  may receive a bid request from source node  502  and/or ISP  510  from the second network (e.g., transmitted at block  604 ). Block  704  may then broadcast the bid request to one or more intermediaries  512  over the second network. Upon receipt of bid requests from the second network, an instance of agent  520  executing on an associated intermediary may process the bid request and provide a bid as illustrated above with reference to  FIG. 5 . In this particular embodiment, however, the instance of agent  520  may receive bid requests from, and transmit bids to server  522  over the second network. 
   In one embodiment, process embodiment  700  may initially identify intermediaries  512  which may be capable of forwarding a digital object to the destination as illustrated above with reference to block  204  ( FIG. 4 ), and limit transmission of bid requests at block  704  to such capable intermediaries  512 . Alternatively, process embodiment  700  may merely rely on responses to the bid requests and/or absences of responses to determine the capabilities of the intermediaries  512  as illustrated above. 
   Upon receiving bids from instances of agent  520 , process embodiment  700  may select one or more intermediaries  512  to forward a digital object to one or more destinations, based, at least in part, upon terms set forth in the received bids as illustrated above with reference to block  208  ( FIG. 4 ). Block  708  may then transmit information to be used in forwarding the digital object (e.g., network address(es) of selected intermediary(ies)) over the second network to source node  502  and/or ISP  510  based, at least in part, on the one or more selected intermediaries. 
   According to an embodiment, server  522  and/or agent process embodiment  520  may maintain billing information for client source nodes and/or ISPs. For example, server  522  may maintain an account of charges owed to intermediaries for forwarding digital objects which have accrued as a result of the bidding process described above or otherwise. In a particular embodiment, block  710  may update the account of source node  502  and/or ISP  510  according to terms of a bid provided by the intermediary  512  selected to forward the digital object to the destination node. For example, server  522  may associate charges with an account number provided in a field of a DTF as part of a bid request received at block  702 . However, this is merely an example of maintaining and/or updating an account for charges accrued for the forwarding of digital objects and claimed subject matter is not limited in these respects. 
   In another particular embodiment, server  522  may coordinate periodic invoicing of accrued charges to nodes that have used the services of intermediaries in forwarding objects in the data transmission network. Server  522  may also facilitate connection charges and/or payment to intermediaries having performed the services of forwarding the digital objects. In one embodiment, server  522  may maintain credit accounts for parties (e.g., source nodes and/or ISPs) that may employ the services of intermediaries in forwarding digital objects. Here, server  522  may charge payment to intermediaries for services performed for parties against the parties&#39; credit accounts. However, these are merely examples of how server  522  may coordinate period invoicing for services performed by intermediaries and claimed subject matter is not limited in these respects. 
   As illustrated in  FIG. 3  above, a source node may forward a digital object to multiple destination nodes over multiple paths. A first intermediary may be selected for forwarding the digital object to one or more destination nodes over a first path and a second intermediary may be selected for transmitting the digital object to one or more other destination nodes over a second path. It should be apparent that the embodiments of  FIG. 8 through 10  may facilitate bidding among intermediaries for the service of forwarding the digital object in multiple paths to multiple destinations. Here, server  522  may provide information for forwarding the digital object at block  708  to two or more intermediaries corresponding to the multiple paths. 
     FIGS. 6 and 7  above illustrate a method and/or system for the transmission of a digital object to a destination node by forwarding the digital object over two or more intermediaries. Here, according to a particular embodiment, the second network may couple server  522  to a source node and/or ISP as well as intermediaries capable of receiving a digital object from the ISP. In response to bid requests from server  522 , instances of agent  520  (executing on the intermediaries coupled to the second network) may obtain bids from one or more downstream intermediaries (not shown). Instances of agent  520  may then determine terms for bids for the service of forwarding the digital object to the destination node as illustrated above in process embodiment  450  and transmit the bids to server  522  over the second network. Upon acceptance of one or more of the bids, server  522  may transmit one or more acceptance messages to one or more instances of agent  520  over the second network. Alternatively, as illustrated above, an acceptance may be implied upon receipt of one or more data packets at an intermediary carrying all or a portion of the digital object. Upon an indication of such an acceptance (explicit and/or implied), an instance of agent  520  may accept one or more of said bids received from one or more downstream intermediaries as illustrated above. 
   While there has been illustrated and described what are presently considered to be example embodiments, it will be understood by those skilled in the art that various other modifications may be made, and equivalents may be substituted, without departing from claimed subject matter. Additionally, many modifications may be made to adapt a particular situation to the teachings of claimed subject matter without departing from the central concept described herein. Therefore, it is intended that claimed subject matter not be limited to the particular embodiments disclosed, but that claimed subject matter may also include all embodiments falling within the scope of claimed subject matter, and equivalents thereof.