Cisco Technology, Inc.

Nathan Allen Mitchell

Jagdish Venkata Sonti

Tmima Koren

Walter Leslie Robinson

Ali Sajassi

Thomas Eric Ryle

Mei Zhang

Yushun Zhang

Richard Thomas Wood

Chris O'Rourke

Mark Albert

Robert A Mackie

Leo Temoshenko

Michael Sutton

Stephen Charles Hilla

Robert Leroy King

Karen A Szypulski

Rafael Mantilla Montalvo

Hugh Nhan

Jorge Manuel Gonzalez

Timothy F Masterson

Charles M Parker

Jonathan D Douglas

George R Everhart

Douglas W Currie

A method for assisting media access control (MAC) address learning is disclosed. The method includes receiving, at a first provider edge (PE) device, a data packet from a core network, the data packet identifying an Ethernet Segment (ES) from which the data packet originated and identifying a first MAC address as the destination MAC address; determining, at the first PE device, whether the first PE device has an Ethernet connection in the ES identified by the data packet and whether the first PE device has learned the first MAC address; and, upon positive determination, sending an announcement message to the core network, the announcement message identifying the first MAC address.

PBB-EVPN customer MAC synchronization among all-active multi-homing PEs

A computer-implemented method for assisting Ethernet Segment (ES)-aware media access control (MAC) address learning is disclosed. The method includes receiving, at a provider edge (PE) device, a data packet from a core network, the data packet identifying an ES from which the data packet originated and identifying a MAC address as a source MAC address; determining whether the PE device has an Ethernet connection in the ES identified by the data packet; and, upon positive determination, associating the MAC address identified as the source MAC address of the data packet to a bridge port, at the PE device, of the Ethernet connection in the ES identified by the data packet.

Ethernet segment aware MAC address learning

Controlling a transmission rate of packet traffic includes receiving packets from a network processor. The packets are stored in a buffer associated with a processor. If an occupancy level of the buffer is greater than a predetermined threshold, it is determined that the processor is congested. A message is transmitted to the network processor indicating the processor is congested.

Controlling a transmission rate of packet traffic

A method for providing single point-of-presence for a network element includes receiving a packet at a network processor, determining if the packet is to be directed to a particular one of a plurality of traffic processors if a source address of the packet is associated with a subscriber terminal, and determining if the packet is to be directed to the particular one of the plurality of traffic processors if a destination address of the packet is associated with the subscriber terminal. The method further includes distributing the packet to the particular one of the plurality of traffic processors.

Providing single point-of-presence across multiple processors

An apparatus for communicating data is provided that includes a cell site element associated with a base transceiver station and comprising a compression module that is operable to receive a plurality of bits associated with a communications flow, to inspect the bits, to determine whether one or more samples included in the flow should be suppressed, and to compress the samples. The cell site element is coupled to a back-up device that is operable to assume responsibility for active flows in a case where a primary device fails. Data is exchanged between the primary device and the back-up device, the data guiding the back-up device in how to process the active flows.

System and method for synchronizing a back-up device in a communications environment

Performing compression includes receiving at a compressor a flow comprising packets, where each packet has a packet identifier. The packet identifiers are associated with a predetermined increment, but any change in the predetermined increment is ignored. The packets are compressed, and the flow is transmitted to a decompressor.

Performing compression of user datagram protocol packets

In a pipeline network processor, a packet intercept feature determines whether a packet is to be intercepted based on the inbound and outbound port through which the packet travels and based on the source and destination of the packet. When a packet enters the pipeline network processor, a determination is made as to whether the inbound and outbound ports are enabled for packet intercept. If so, a source and/or destination media access control address is compared to a list of configured intercept addresses. If a match is found, a copy of the packet is diverted to an intercept receiver and the original packet is forwarded to its intended destination.

System and method for intercepting packets in a pipeline network processor

Growing community of inventors

Siler City, NC, United States of America

Nathan Allen Mitchell