Patent ID: 8693506
Filing Date: 2014-04-08
Classification: H04J

Abstract:
1. A communication system, comprising: a plurality of network devices associated with a particular physical location; a first transparent clock adaptor coupled to a first one of the network devices and operative to determine an entry time of a given packet to the physical location; a second transparent clock adaptor coupled to a second one of the network devices and operative to determine an exit time of a given packet from the physical location; and an auxiliary synchronization connection allowing the first transparent clock adaptor to communicate with the second transparent clock adaptor; wherein the second transparent clock adaptor adjusts a correction field of the given packet based on the entry time and the exit time; wherein the first transparent clock adaptor is interconnected with the second transparent clock adaptor in an auxiliary network; wherein the physical location comprises a segment of a network comprising one or more network devices whose physical arrangement allows for convenient interconnection with the auxiliary network; wherein the auxiliary network comprises transparent clock adaptors at one or more network ports of the one or more network devices of the physical location which connect the physical location with one or more other segments of the network; and wherein transparent clock adaptors are coupled to network ports of only a subset of the plurality of network devices at the physical location.