Abstract:
A request to monitor a data packet to be transmitted from a first location to a second location over a first network is received. A projected time for the transmission of the data packet from the first location to the second location is determined. Responsive to determining the projected time, whether the data packet arrived at the second location after the projected time plus a variance is determined.

Description:
BACKGROUND 
       [0001]    The present invention relates generally to the field of data packet monitoring, and more particularly to monitoring of cloud environment by tracking expected delivery time of packets within a system. 
         [0002]    Tier based management of infrastructure has been evolving for over a decade. These monitoring solutions include at least the following elements. First, an agent, which runs in the network elements (i.e. lower tier). Data describing the network equipment (e.g., number of packets received in a particular link, number of packets dropped in a particular link, etc.) is collected in a virtual database. Second, a manager, which is an overarching entity residing in application (i.e. upper tier) polls the agents based upon the polling period and collects data that is in the virtual database. This data is used to create both historic and online reports along with appropriate alarms being raised in case of traffic congestion, link failures, etc. Additionally, the agent can send traps for faster processing of the critical details by the manager. 
       SUMMARY 
       [0003]    Embodiments of the present invention include a method, computer program product, and system for monitoring a data packet in a distributed computing environment. In one embodiment, a request to monitor a data packet to be transmitted from a first location to a second location over a first network is received. A projected time for the transmission of the data packet from the first location to the second location is determined. Responsive to determining the projected time, whether the data packet arrived at the second location after the projected time plus a variance is determined. 
     
    
     
       BRIEF DESCRIPTION OF THE DRAWINGS 
         [0004]      FIG. 1  depicts a cloud computing node, in accordance with an embodiment of the present invention; 
           [0005]      FIG. 2  depicts a cloud computing environment, in accordance with an embodiment of the present invention; 
           [0006]      FIG. 3  depicts abstraction model layers, in accordance with an embodiment of the present invention; 
           [0007]      FIG. 4  depicts a functional block diagram of a data processing environment, in accordance with an embodiment of the present invention; and 
           [0008]      FIG. 5  depicts a flowchart of operational steps of a program for tagging and monitoring data packets in a cloud environment, in accordance with an embodiment of the present invention. 
       
    
    
     DETAILED DESCRIPTION 
       [0009]    Some embodiments of the present invention recognize that current tier based management of infrastructure elements that follow a “bottom up” approach are intrusive and contribute to the overheads of traffic specific to monitor. As the number of network elements increase, the monitoring needs increase and therefore the intrusive traffic increases. Additionally, current tier based management of infrastructure elements lack in differentiated treatment of monitoring in cloud based environments where a tenant might want a close monitoring of packets created by a process which is critical to a Service Level Agreement (SLA). However, current tier based management infrastructure elements that follow a “top up” approach capture the events based upon the configurations and this has the disadvantage of lack of open interfaces. In cloud based distributed environments the resources and infrastructure are shared and the process or its components get executed in various available nodes and there is a need to trade the propagation of the Internet Protocol (IP) packet comprising critical processes. 
         [0010]    Embodiments of the present invention offer an integrated offline packet tracking mechanism for packets in tagged processes. Embodiments of the present invention include a program termed Offline Monitoring Assistant (OMA). OMA includes a tag enabler that enables the tagging of processes/tasks to be monitored. OMA also provides an out-of-band monitoring switch which exposes interfaces for various categories including, but not limited to, Geospatial monitor links, Wireless (3G, 4G, etc.) out-of-band links, physical out-of-band links, and GPS (Global Positioning Satellites). Geospatial monitoring links are monitoring channels enabled offline through geospatial satellites (i.e., monitoring packets are routed via Satellite links.) 
         [0011]    Embodiments of the present invention overcome the previously discussed disadvantages by enabling combined benefits of differentiated treatment for monitoring of packets for the tenants through a non-intrusive location based mechanism enable through multiple categories of interfaces. Additionally, embodiments of the present invention provide a flexible monitoring system enable for various dedicated and cloud based offerings including, but not limited to, software as a service, infrastructure as a service, and platform as a service. 
         [0012]    It is understood in advance that although this disclosure includes a detailed description on cloud computing, implementation of the teachings recited herein are not limited to a cloud computing environment. Rather, embodiments of the present invention are capable of being implemented in conjunction with any other type of computing environment now known or later developed. The present invention will now be described in detail with reference to the Figures. 
         [0013]    Cloud computing is a model of service delivery for enabling convenient, on-demand network access to a shared pool of configurable computing resources (e.g. networks, network bandwidth, servers, processing, memory, storage, applications, virtual machines, and services) that can be rapidly provisioned and released with minimal management effort or interaction with a provider of the service. This cloud model may include at least five characteristics, at least three service models, and at least four deployment models. 
         [0014]    Characteristics are as follows: 
         [0015]    On-demand self-service: a cloud consumer can unilaterally provision computing capabilities, such as server time and network storage, as needed automatically without requiring human interaction with the service&#39;s provider. 
         [0016]    Broad network access: capabilities are available over a network and accessed through standard mechanisms that promote use by heterogeneous thin or thick client platforms (e.g., mobile phones, laptops, and PDAs). 
         [0017]    Resource pooling: the provider&#39;s computing resources are pooled to serve multiple consumers using a multi-tenant model, with different physical and virtual resources dynamically assigned and reassigned according to demand. There is a sense of location independence in that the consumer generally has no control or knowledge over the exact location of the provided resources but may be able to specify location at a higher level of abstraction (e.g., country, state, or datacenter). 
         [0018]    Rapid elasticity: capabilities can be rapidly and elastically provisioned, in some cases automatically, to quickly scale out and rapidly released to quickly scale in. To the consumer, the capabilities available for provisioning often appear to be unlimited and can be purchased in any quantity at any time. 
         [0019]    Measured service: cloud systems automatically control and optimize resource use by leveraging a metering capability at some level of abstraction appropriate to the type of service (e.g., storage, processing, bandwidth, and active user accounts). Resource usage can be monitored, controlled, and reported providing transparency for both the provider and consumer of the utilized service. 
         [0020]    Service Models are as follows: 
         [0021]    Software as a Service (SaaS): the capability provided to the consumer is to use the provider&#39;s applications running on a cloud infrastructure. The applications are accessible from various client devices through a thin client interface such as a web browser (e.g., web-based e-mail). The consumer does not manage or control the underlying cloud infrastructure including network, servers, operating systems, storage, or even individual application capabilities, with the possible exception of limited user-specific application configuration settings. 
         [0022]    Platform as a Service (PaaS): the capability provided to the consumer is to deploy onto the cloud infrastructure consumer-created or acquired applications created using programming languages and tools supported by the provider. The consumer does not manage or control the underlying cloud infrastructure including networks, servers, operating systems, or storage, but has control over the deployed applications and possibly application hosting environment configurations. 
         [0023]    Infrastructure as a Service (IaaS): the capability provided to the consumer is to provision processing, storage, networks, and other fundamental computing resources where the consumer is able to deploy and run arbitrary software, which can include operating systems and applications. The consumer does not manage or control the underlying cloud infrastructure but has control over operating systems, storage, deployed applications, and possibly limited control of select networking components (e.g., host firewalls). 
         [0024]    Deployment Models are as follows: 
         [0025]    Private cloud: the cloud infrastructure is operated solely for an organization. It may be managed by the organization or a third party and may exist on-premises or off-premises. 
         [0026]    Community cloud: the cloud infrastructure is shared by several organizations and supports a specific community that has shared concerns (e.g., mission, security requirements, policy, and compliance considerations). It may be managed by the organizations or a third party and may exist on-premises or off-premises. 
         [0027]    Public cloud: the cloud infrastructure is made available to the general public or a large industry group and is owned by an organization selling cloud services. 
         [0028]    Hybrid cloud: the cloud infrastructure is a composition of two or more clouds (private, community, or public) that remain unique entities but are bound together by standardized or proprietary technology that enables data and application portability (e.g., cloud bursting for load-balancing between clouds). 
         [0029]    A cloud computing environment is service oriented with a focus on statelessness, low coupling, modularity, and semantic interoperability. At the heart of cloud computing is an infrastructure comprising a network of interconnected nodes. 
         [0030]    Referring now to  FIG. 1 , a schematic of an example of a cloud computing node is shown. Cloud computing node  10  is only one example of a suitable cloud computing node and is not intended to suggest any limitation as to the scope of use or functionality of embodiments of the invention described herein. Regardless, cloud computing node  10  is capable of being implemented and/or performing any of the functionality set forth hereinabove. 
         [0031]    In cloud computing node  10  there is a computer system/server  12 , which is operational with numerous other general purpose or special purpose computing system environments or configurations. Examples of well-known computing systems, environments, and/or configurations that may be suitable for use with computer system/server  12  include, but are not limited to, personal computer systems, server computer systems, thin clients, thick clients, hand-held or laptop devices, multiprocessor systems, microprocessor-based systems, set top boxes, programmable consumer electronics, network PCs, minicomputer systems, mainframe computer systems, and distributed cloud computing environments that include any of the above systems or devices, and the like. 
         [0032]    Computer system/server  12  may be described in the general context of computer system-executable instructions, such as program modules, being executed by a computer system. Generally, program modules may include routines, programs, objects, components, logic, data structures, and so on that perform particular tasks or implement particular abstract data types. Computer system/server  12  may be practiced in distributed cloud computing environments where tasks are performed by remote processing devices that are linked through a communications network. In a distributed cloud computing environment, program modules may be located in both local and remote computer system storage media including memory storage devices. 
         [0033]    As shown in  FIG. 1 , computer system/server  12  in cloud computing node  10  is shown in the form of a general-purpose computing device. The components of computer system/server  12  may include, but are not limited to, one or more processors or processing units  16 , a system memory  28 , and a bus  18  that couples various system components including system memory  28  to processor  16 . 
         [0034]    Bus  18  represents one or more of any of several types of bus structures, including a memory bus or memory controller, a peripheral bus, an accelerated graphics port, and a processor or local bus using any of a variety of bus architectures. By way of example, and not limitation, such architectures include Industry Standard Architecture (ISA) bus, Micro Channel Architecture (MCA) bus, Enhanced ISA (EISA) bus, Video Electronics Standards Association (VESA) local bus, and Peripheral Component Interconnects (PCI) bus. 
         [0035]    Computer system/server  12  typically includes a variety of computer system readable media. Such media may be any available media that is accessible by computer system/server  12 , and it includes both volatile and non-volatile media, removable and non-removable media. 
         [0036]    System memory  28  can include computer system readable media in the form of volatile memory, such as random access memory (RAM)  30  and/or cache memory  32 . Computer system/server  12  may further include other removable/non-removable, volatile/non-volatile computer system storage media. By way of example only, storage system  34  can be provided for reading from and writing to a non-removable, non-volatile magnetic media (not shown and typically called a “hard drive”). Although not shown, a magnetic disk drive for reading from and writing to a removable, non-volatile magnetic disk (e.g., a “floppy disk”), and an optical disk drive for reading from or writing to a removable, non-volatile optical disk such as a CD-ROM, DVD-ROM or other optical media can be provided. In such instances, each can be connected to bus  18  by one or more data media interfaces. As will be further depicted and described below, memory  28  may include at least one program product having a set (e.g., at least one) of program modules that are configured to carry out the functions of embodiments of the invention. 
         [0037]    Program/utility  40 , having a set (at least one) of program modules  42 , may be stored in memory  28  by way of example, and not limitation, as well as an operating system, one or more application programs, other program modules, and program data. Each of the operating system, one or more application programs, other program modules, and program data or some combination thereof, may include an implementation of a networking environment. Program modules  42  generally carry out the functions and/or methodologies of embodiments of the invention as described herein. 
         [0038]    Computer system/server  12  may also communicate with one or more external devices  14  such as a keyboard, a pointing device, a display  24 , etc.; one or more devices that enable a user to interact with computer system/server  12 ; and/or any devices (e.g., network card, modem, etc.) that enable computer system/server  12  to communicate with one or more other computing devices. Such communication can occur via Input/Output (I/O) interfaces  22 . Still yet, computer system/server  12  can communicate with one or more networks such as a local area network (LAN), a general wide area network (WAN), and/or a public network (e.g., the Internet) via network adapter  20 . As depicted, network adapter  20  communicates with the other components of computer system/server  12  via bus  18 . It should be understood that although not shown, other hardware and/or software components could be used in conjunction with computer system/server  12 . Examples, include, but are not limited to: microcode, device drivers, redundant processing units, external disk drive arrays, RAID systems, tape drives, and data archival storage systems, etc. 
         [0039]    Referring now to  FIG. 2 , illustrative cloud computing environment  50  is depicted. As shown, cloud computing environment  50  comprises one or more cloud computing nodes  10  with which local computing devices used by cloud consumers, such as, for example, personal digital assistant (PDA) or cellular telephone  54 A, desktop computer  54 B, laptop computer  54 C, and/or automobile computer system  54 N may communicate. Nodes  10  may communicate with one another. They may be grouped (not shown) physically or virtually, in one or more networks, such as Private, Community, Public, or Hybrid clouds as described hereinabove, or a combination thereof. This allows cloud computing environment  50  to offer infrastructure, platforms and/or software as services for which a cloud consumer does not need to maintain resources on a local computing device. It is understood that the types of computing devices  54 A-N shown in  FIG. 2  are intended to be illustrative only and that computing nodes  10  and cloud computing environment  50  can communicate with any type of computerized device over any type of network and/or network addressable connection (e.g., using a web browser). 
         [0040]    Referring now to  FIG. 3 , a set of functional abstraction layers provided by cloud computing environment  50  ( FIG. 2 ) is shown. It should be understood in advance that the components, layers, and functions shown in  FIG. 3  are intended to be illustrative only and embodiments of the invention are not limited thereto. As depicted, the following layers and corresponding functions are provided: 
         [0041]    Hardware and software layer  60  includes hardware and software components. Examples of hardware components include: mainframes  61 ; RISC (Reduced Instruction Set Computer) architecture based servers  62 ; servers  63 ; blade servers  64 ; storage devices  65 ; and networks and networking components  66 . In some embodiments, software components include network application server software  67  and database software  68 . 
         [0042]    Virtualization layer  70  provides an abstraction layer from which the following examples of virtual entities may be provided: virtual servers  71 ; virtual storage  72 ; virtual networks  73 , including virtual private networks; virtual applications and operating systems  74 ; and virtual clients  75 . 
         [0043]    In one example, management layer  80  may provide the functions described below. Resource provisioning  81  provides dynamic procurement of computing resources and other resources that are utilized to perform tasks within the cloud computing environment. Metering and Pricing  82  provide cost tracking as resources are utilized within the cloud computing environment, and billing or invoicing for consumption of these resources. In one example, these resources may comprise application software licenses. Security provides identity verification for cloud consumers and tasks, as well as protection for data and other resources. User portal  83  provides access to the cloud computing environment for consumers and system administrators. Service level management  84  provides cloud computing resource allocation and management such that required service levels are met. Service Level Agreement (SLA) planning and fulfillment  85  provide pre-arrangement for, and procurement of, cloud computing resources for which a future requirement is anticipated in accordance with an SLA. 
         [0044]    Workloads layer  90  provides examples of functionality for which the cloud computing environment may be utilized. Examples of workloads and functions which may be provided from this layer include: mapping and navigation  91 ; software development and lifecycle management  92 ; virtual classroom education delivery  93 ; data analytics processing  94 ; transaction processing  95 ; and packet monitoring  96 . 
         [0045]      FIG. 4  is a functional block diagram illustrating a data processing environment, generally designated  400 , in accordance with one embodiment of the present invention.  FIG. 4  provides only an illustration of one implementation and does not imply any limitations with regard to the systems and environments in which different embodiments may be implemented. Many modifications to the depicted embodiment may be made by those skilled in the art without departing from the scope of the invention as recited by the claims. 
         [0046]    An embodiment of data processing environment  400  includes computer  410 , computer  420 , and network management center (NMC)  430  interconnected over network  402 . Network  402  can be, for example, a local area network (LAN), a telecommunications network, a wide area network (WAN) such as the Internet, or any combination of the three, and include wired, wireless, or fiber optic connections. In general, network  402  can be any combination of connections and protocols that will support communications between computer  410 , computer  420 , and any other computer connected to network  402 , in accordance with embodiments of the present invention. 
         [0047]    In example embodiments, computer  410  can be a laptop, tablet, or netbook personal computer (PC), a desktop computer, a personal digital assistant (PDA), a smart phone, or any programmable electronic device capable of communicating with any computing device within data processing environment  400 . In certain embodiments, computer  410  collectively represents a computer system utilizing clustered computers and components (e.g., database server computers, application server computers, etc.) that act as a single pool of seamless resources when accessed by elements of data processing environment  400 , such as in a cloud computing environment. In general, computer  410  is representative of any electronic device or combination of electronic devices capable of executing computer readable program instructions. Computer  410  can include components as depicted and described in detail with respect to cloud computing node  10 , as described in reference to  FIG. 1 , in accordance with embodiments of the present invention. Computer  420  and NMC  430  are substantially similar to computer  410  and have substantially similar components. Computer  410 , computer  420 , and NMC  430  can be nodes that are part of cloud computing environment  50 . 
         [0048]    In an embodiment, computer  410  includes OMA  412 . OMA  412  is a program, application, or subprogram of a larger program that includes a tag enabler and offline monitoring switch. In an embodiment, OMA  412  allows for a user to tag or indicate layer 2 or layer 3 data packets that are parts of processes to be monitored. Data packets, or network packets, are formatted units of data carried by a packet-switched network. The packets are enclosed in one or more wraps of information that help to identifying the piece of data and route the piece of data to its correct destination. Layer 2 is the data link layer that provides node-to-node data transfer including a reliable link between two directly connected nodes, by detecting and possibly correcting errors that can occur in the physical layer. The physical layers of Ethernet and other local-area networks (i.e. network  402 ) can be for example Token Ring local area network, Fiber Distributed Data Interface (FDDI), ITU-T G.hn, and IEEE 802.11 (Wi-Fi), as well as personal area networks such as Bluetooth and IEEE 802. 15.4. Layer 3 is the network layer that provides the functional and procedural means of transferring variable length data sequences from one node (or computer) to another node (or computer) that is connected to the same network. In an alternative embodiment, OMA  412  can tag or indicate any other layer data packet types. In an embodiment, a process is a piece of code or capability intended to perform the desired functionality. A process can be at various levels of abstraction (i.e., Tasks). For example, a process can check if a customer has paid a bill or check if a customer is a member of a group. In an alternative embodiment, processes can be aggregated to a higher level process. For example, a process to validate customer details which includes both checking if the customer has paid a bill and if the customer is a member of a group. In an alternative embodiment, the process can be a sub-process or task (i.e. a smaller subset of a process). 
         [0049]    In some embodiments, OMA  412  allows for a user to assign Service Level Agreement (SLA) categories for processes, sub-processes or tasks. In other words, a user can indicate an acceptable SLA for a process (i.e., a speed the process must be completed, a time the process must be completed, etc.) including a variation that is allowed for the process before an alarm should be indicated. OMA  412  also includes an offline monitoring switch that exposes interfaces for various categories (e.g., geospatial monitoring, wireless (3G/4G and other) offline links, physical offline links, GPS, etc.) so that OMA can tag different processes. OMA  412  captures the packet locations at the egress of the interfaces (just before the packet leaves the interface) and communicates the location with the out-of-band communication links (i.e., satellite, wireless, or other wireline media). OMA  412  forward this packet location information to NMC  430  and specifically to monitoring program  432  via network  402 . Computer  420  includes OMA  422  and OMA  422  is substantially similar to OMA  412 . 
         [0050]    In one embodiment, NMC  430  includes monitoring program  432 . Monitoring program  432  is a program, application, or subprogram of a larger program that monitors data packets as they interact in data processing environment  400 . In an embodiment, monitoring program  432  can monitor data packets that pass between computer  410  and computer  420 . In an alternative embodiment, monitoring program can monitor data packets that pass between any computer(s) (not shown) that can interact with network  402 . In an alternative embodiment, monitoring program  432  can be located anywhere that can interact with network  402  but monitor data packets that move through network  402 . 
         [0051]    Monitoring program  432  receives information about data packets as they traverse through the network elements (i.e., network  402 ) and the network elements capture the routing information, such as ingress and egress from interfaces, and monitoring program  432  adds the routing information to the tagging information attached to the data packets. Monitoring program  432  can include a predictive algorithm that determines the expected time of arrival of the data packet using the starting location for the data packet, the next location for the data packet, and the network devices the data packet must travel via to get from the starting location to the next location. In an embodiment, monitoring program  432  can raise an alarm if the data packet does not reach the next location within a predicted time while allowing some variation based upon the network devices used. The alarm can include an alert for an outage of a network device or an alert for congestion in a network device or series of network devices along with an indication that the data packet should find an alternate path in the network. In an embodiment, if the path of network devices that the data packet is traveling via has previously been reliable and there is an indication that there is communications interference monitoring program  432  can alert the user that there is possibly a lawful or unlawful wiretapping. Wiretapping can be a miscreant act to view the packets enabled through copying the packet or intrusion as a proxy within the packet flow path. 
         [0052]    In any embodiment, OMA  412 , OMA  422  and monitoring program  432  can include a user interface (not shown). A user interface is a program that provides an interface between a user and an application. A user interface refers to the information (such as graphic, text, and sound) a program presents to a user and the control sequences the user employs to control the program. There are many types of user interfaces. In one embodiment, the user interface can be a graphical user interface (GUI). A GUI is a type of user interface that allows users to interact with electronic devices, such as a keyboard and mouse, through graphical icons and visual indicators, such as secondary notations, as opposed to text-based interfaces, typed command labels, or text navigation. In computer, GUIs were introduced in reaction to the perceived steep learning curve of command-line interfaces, which required commands to be typed on the keyboard. The actions in GUIs are often performed through direct manipulation of the graphics elements. For example, client application can be a web browser, a database program, etc. 
         [0053]      FIG. 5  is a flowchart of workflow  500  depicting operational steps for tagging and monitoring data packets in a cloud environment, in accordance with an embodiment of the present invention. Workflow  500  represents the operational steps to perform packet monitoring  96  in workloads layer  90 . In one embodiment, the steps of the workflow are performed by OMA  412  and OMA  422 . In an alternative embodiment, the steps of the workflow are performed by monitoring program  432 . Alternatively, steps of the workflow can be performed by any other program while working with OMA  412 , OMA  422  and monitoring program  432 . In a preferred embodiment, a user, via a user interface discussed previously, can invoke workflow  500  upon determining that they would like to tag and monitor data packets in a cloud environment. In an alternative embodiment, workflow  500  can be invoked automatically under the control of another program, for example, upon a business process modeler creating a process model that includes monitoring at the time of execution, OMA  412 , OMA  422 , or monitoring program  432  can begin a step in workflow  500 . 
         [0054]    Monitoring program  432  determines a process to monitor (step S 505 ). In an embodiment, monitoring program  432  can be notified by a user (i.e. a network administrator, admin, etc.), via user interface, discussed previously, of a process to monitor. Additionally, the process can be a sub-process or task (i.e. a smaller subset of a process). Each process to be monitored is made up of a number of packets or data packets (e.g., layer 2 and layer 3). In an alternative embodiment, a user, via a business process modeler (not shown), can create a process model that can have an SLA for the process and the business process modeler can indicate to monitoring program  432  that the process should be monitored. The SLA can be specific for an individual process or can be for all processes. Additionally, the SLA can include a variance that, if exceeded, can indicate an issue, raise an alarm, or send a notification. In yet another embodiment, a user of OMA  412  or OMA  422 , via user interface discussed previously, can tag processes occurring on computer  410  or computer  420 , respectively, and monitoring program  432  will be notified by OMA  412  and OMA  422  of the processes to be monitored. An example process can be transferring data from computer  410  to computer  420 . 
         [0055]    OMA  412  tags packet(s) (step S 510 ). For example, OMA  412  tags packet(s) of the determined process to monitor that are found on computer  410 . Additionally, OMA  422  tags packet(s) of the determined process to monitor that are found on computer  420 . Tagging a packet(s) indicates that network elements should monitor the ingress and egress movements of said packets and this ingress and egress information is added to the packet information. In other words, OMA  412  and OMA  422  indicates that as the packets traverse (i.e., ingress or egress) from a computer (i.e., network element), the network elements (not shown) on the computer capture the routing information, such as timing and location, process ID, or tenant ID in a cloud environment, and then adds this information to the packets. Additionally, the routing information is indicated to be forwarded to monitoring program  432  on NMC  430  via network  402 . For example, if a packet is transferred from computer  410  to computer  420 , monitoring program  432  can indicate to OMA  412  and OMA  422  that the packet should be tagged (i.e., monitored). 
         [0056]    The computers transmit the packet(s) (step S 515 ). In other words, computer  410  transmits the packet(s) of the determined process to be monitored to its next destination. In an embodiment, computer  410  transmits the packet to computer  420  via network  402 . For example, as the packet leaves or egresses computer  410  and enters network  402 , OMA  412  adds to the packet the timing and location information, for example, the packet left computer  410  at 9:04:33.22 A.M. Eastern Time. OMA  412  also forwards the information to monitoring program  432  via network  402 . In an alternative embodiment, a packet can stop at any number of network locations as it is transmitted from computer  410  to computer  420  and ingress/egress information is added to the packet regarding each of the any number of network locations. In an embodiment, the computer can transmit one packet and the packet has timing and location information added to it. In an alternative embodiment, the computer can transmit multiple packets and each packet has the timing and location information added to it. 
         [0057]    The computer receives the packet(s) (step S 520 ). In other words, computer  420  receives the packet(s) of the determine process to be monitored. In an embodiment, computer  420  receives the packet from computer  410  via network  402 . For example as the packet enters computer  420  and leaves network  402 , OMA  422  adds to the packet the timing and location information, for example, the packet entered computer  420  at 9:04:33.25 A.M. Eastern Time. OMA  422  also forwards the information to monitoring program  432  via network  402 . In an embodiment, computer  420  can be the final destination of the packet. In an alternative embodiment, computer  420  can be a network element that the packet has to travel via before reaching a final destination computer (not shown). In an embodiment, the computer can receive one packet and the packet has timing and location information. In an alternative embodiment, the computer can receive multiple packets and each packet has the timing and location information. 
         [0058]    Monitoring program  432  predicts the travel time of the packet(s) to the location (step S 525 ). In other words, monitoring program  432  predicts the travel time between two locations of packet(s) of the determined process to be monitored that monitoring program has tagged. For example, monitoring program  432  predicts the travel time of a packet that was tagged and then sent from computer  410  to computer  420  via network  402 . Monitoring program  432  determines that the size of the packet is 1500 Bytes which is equal to 12000 bits. The packet will travel via network  402  between computer  410  and computer  420  and the network is a 2 Mbps (megabits per second) or 2 million bits per second. Therefore, the predicted travel time is 12000 bits divided by 2 million bits per second, or 0.006 seconds. In an alternative embodiment, predictive algorithms for calculating travel time between two network locations for a piece of data, as known in the art, can be used. 
         [0059]    Monitoring program  432  determines if the packet(s) were received by the location within the predicted time (decision block S 530 ). In other words, monitoring program  432  compares the predicted travel time of the packet to the location determined in step S 525  to the actual time taken to between when the packet was transmitted (step S 515 ) and when the packet was received (step S 520 ). Additionally, monitoring program  432  allows for some variance (e.g., 10%, ±0.001 seconds, etc.) of the predicted travel time. The variance is received by monitoring program  432  via a user, using user interface, discussed previously. For example, monitor program predicted the travel time of a packet between computer  410  and computer  420  via network  402  would be 0.004 seconds. The actual travel time based on the time the packet was transmitted and the packet was received was 0.03 seconds. A user indicated that the travel time can have a variance up to 10%. In other words, the predicted travel time can be anywhere up to 10% more than 0.004 seconds for a total of 0.0044 seconds. Here, the actual travel time (0.03 seconds) was more than the predicted travel time with the variance (0.0044 seconds). 
         [0060]    If the packet was not received by the location within the predicted travel time (decision block S 530 , no branch), monitoring program  432  sends a notification (step S 523 ). Monitoring program  432  can send the notification to the user who indicated they would like the packets monitored. In an alternative embodiment, monitoring program  432  can send a notification to a network administrator or the like that monitors network  402 , computer  410 , or computer  420 . In yet another embodiment, monitoring program  432  can send a notification to any user that has control of network  402 , computer  410 , computer  420 , or any processes that use these devices. The notification can be an alert for an outage (i.e., the packet never actually arrives) or if multiple packets are delayed beyond the variation the notification could indicate congestion. Additionally, the notification can automatically indicate to another program (not shown) that the packets should use a different network route to travel from computer  410  to computer  420 . Further, should the delay in the transmission of the packets be on going, monitoring program can include a notification that the network path can be degraded (i.e. a physical issue). Similarly, if the network path that the packets are travelling has known to be reliable for an extended period of time and the network equipment indicates a loss of signal strength, the notification can include an indication of communication interference such as would happen if an electrical or optical sign is split for either lawful or unlawful wire tapping. 
         [0061]    If the packet was received by the location within the predicted travel time (decision block S 530 , yes branch), monitoring program  432  determines if this is the packet destination (decision block S 540 ). In other words, is the packet at its final destination or does the packet need to be transmitted to another location. If this is not the packet destination (decision block S 540 , no branch), then processing proceeds to transmit the packet (step S 515 ). If this is the packet destination (decision block S 540 , yes branch), then processing proceeds to transmission complete (step S 545 ). In other words the packet is at the final destination and does not need to be transmitted and monitoring program  432  ceases to monitor the packet. 
         [0062]    The programs described herein are identified based upon the application for which they are implemented in a specific embodiment of the invention. However, it should be appreciated that any particular program nomenclature herein is used merely for convenience, and thus the invention should not be limited to use solely in any specific application identified and/or implied by such nomenclature. 
         [0063]    The present invention may be a system, a method, and/or a computer program product. The computer program product may include a computer readable storage medium (or media) having computer readable program instructions thereon for causing a processor to carry out aspects of the present invention. 
         [0064]    The computer readable storage medium can be a tangible device that can retain and store instructions for use by an instruction execution device. The computer readable storage medium may be, for example, but is not limited to, an electronic storage device, a magnetic storage device, an optical storage device, an electromagnetic storage device, a semiconductor storage device, or any suitable combination of the foregoing. A non-exhaustive list of more specific examples of the computer readable storage medium includes the following: a portable computer diskette, a hard disk, a random access memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or Flash memory), a static random access memory (SRAM), a portable compact disc read-only memory (CD-ROM), a digital versatile disk (DVD), a memory stick, a floppy disk, a mechanically encoded device such as punch-cards or raised structures in a groove having instructions recorded thereon, and any suitable combination of the foregoing. A computer readable storage medium, as used herein, is not to be construed as being transitory signals per se, such as radio waves or other freely propagating electromagnetic waves, electromagnetic waves propagating through a waveguide or other transmission media (e.g., light pulses passing through a fiber-optic cable), or electrical signals transmitted through a wire. 
         [0065]    Computer readable program instructions described herein can be downloaded to respective computing/processing devices from a computer readable storage medium or to an external computer or external storage device via a network, for example, the Internet, a local area network, a wide area network and/or a wireless network. The network may comprise copper transmission cables, optical transmission fibers, wireless transmission, routers, firewalls, switches, gateway computers and/or edge servers. A network adapter card or network interface in each computing/processing device receives computer readable program instructions from the network and forwards the computer readable program instructions for storage in a computer readable storage medium within the respective computing/processing device. 
         [0066]    Computer readable program instructions for carrying out operations of the present invention may be assembler instructions, instruction-set-architecture (ISA) instructions, machine instructions, machine dependent instructions, microcode, firmware instructions, state-setting data, or either source code or object code written in any combination of one or more programming languages, including an object oriented programming language such as Smalltalk, C++ or the like, and conventional procedural programming languages, such as the “C” programming language or similar programming languages. The computer readable program instructions may execute entirely on the user&#39;s computer, partly on the user&#39;s computer, as a stand-alone software package, partly on the user&#39;s computer and partly on a remote computer or entirely on the remote computer or server. In the latter scenario, the remote computer may be connected to the user&#39;s computer through any type of network, including a local area network (LAN) or a wide area network (WAN), or the connection may be made to an external computer (for example, through the Internet using an Internet Service Provider). In some embodiments, electronic circuitry including, for example, programmable logic circuitry, field-programmable gate arrays (FPGA), or programmable logic arrays (PLA) may execute the computer readable program instructions by utilizing state information of the computer readable program instructions to personalize the electronic circuitry, in order to perform aspects of the present invention. 
         [0067]    Aspects of the present invention are described herein with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of the invention. It will be understood that each block of the flowchart illustrations and/or block diagrams, and combinations of blocks in the flowchart illustrations and/or block diagrams, can be implemented by computer readable program instructions. 
         [0068]    These computer readable program instructions may be provided to a processor of a general purpose computer, special purpose computer, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions/acts specified in the flowchart and/or block diagram block or blocks. These computer readable program instructions may also be stored in a computer readable storage medium that can direct a computer, a programmable data processing apparatus, and/or other devices to function in a particular manner, such that the computer readable storage medium having instructions stored therein comprises an article of manufacture including instructions which implement aspects of the function/act specified in the flowchart and/or block diagram block or blocks. 
         [0069]    The computer readable program instructions may also be loaded onto a computer, other programmable data processing apparatus, or other device to cause a series of operational steps to be performed on the computer, other programmable apparatus or other device to produce a computer implemented process, such that the instructions which execute on the computer, other programmable apparatus, or other device implement the functions/acts specified in the flowchart and/or block diagram block or blocks. 
         [0070]    The flowchart and block diagrams in the Figures illustrate the architecture, functionality, and operation of possible implementations of systems, methods, and computer program products according to various embodiments of the present invention. In this regard, each block in the flowchart or block diagrams may represent a module, segment, or portion of instructions, which comprises one or more executable instructions for implementing the specified logical function(s). In some alternative implementations, the functions noted in the block may occur out of the order noted in the Figures. For example, two blocks shown in succession may, in fact, be executed substantially concurrently, or the blocks may sometimes be executed in the reverse order, depending upon the functionality involved. It will also be noted that each block of the block diagrams and/or flowchart illustration, and combinations of blocks in the block diagrams and/or flowchart illustration, can be implemented by special purpose hardware-based systems that perform the specified functions or acts or carry out combinations of special purpose hardware and computer instructions. 
         [0071]    The descriptions of the various embodiments of the present invention have been presented for purposes of illustration, but are not intended to be exhaustive or limited to the embodiments disclosed. Many modifications and variations will be apparent to those of ordinary skill in the art without departing from the scope and spirit of the invention. The terminology used herein was chosen to best explain the principles of the embodiment, the practical application or technical improvement over technologies found in the marketplace, or to enable others of ordinary skill in the art to understand the embodiments disclosed herein.