Gigamon Inc.

Rakesh Muthusamy

Tushar Rajnikant Jagtap

Ujjvala Nangineni

Kristian Pereira

Dominick A Cafarelli

Arunraj Mani

Introduced here are visibility platforms able to process the traffic handled by the gateways of an Evolved Packet Core (EPC) with Control and User Plane Separation (CUPS). A visibility platform can include a control processing node (CPN) and one or more user processing nodes (UPNs). The visibility platform may populate a data structure in which the CPN and UPNs are associated with locations along an interface on which Sx/N4 traffic is exchanged between the control and user planes. Each location may be representative of the point on the Sx/N4 interface at which Sx/N4 traffic processed by the corresponding node is acquired. The CPN can use the data structure to program session flows that impact how user traffic is handled by the UPNs.

Dynamic mapping of nodes responsible for monitoring traffic of an evolved packet core

At least one technique for distributing traffic from a visibility node to a network tool is disclosed. In certain embodiments, the visibility node has a tool port through which to receive a plurality of packets which each include a compressed header. The visibility node determines, for each packet, whether a given network tool has received the compressed header in decompressed format based on a header-to-tool mapping structure. The structure includes information indicative of which packet headers each of the plurality of network tools have received in decompressed format. If the visibility node determines that the tool previously received the decompressed header, the visibility node transmits the packet to the network tool in compressed format. If the visibility node determines that the tool has not previously received the decompressed header, the visibility node decompresses the compressed header prior to transmitting the packet to the given network tool.

Growing community of inventors

Sunnyvale, CA, United States of America

Rakesh Muthusamy