Cisco Technology, Inc.

Wanli Wu

Thomas James Edsall

Kit Chiu Chu

Satyam Sinha

Sarang M Dharmapurikar

Smita Rai

Ravikanth Nasika

Ashutosh Agrawal

Geetha Anandakrishnan

Ganlin Wu

Francisco M Matus

Saikat Bhattacharya

Anbu Chezhian Gunalan

Alexandru Seibulescu

Annu Singh

Alex Seibulescu

Kit Chiu

SushilKumar G Jhawar

In an embodiment, a method includes receiving a data packet and generating an optimized security tag based on a standard security tag by replacing an 8-byte optional secure channel identifier (SCI) of the standard security tag with 32 most significant bits of a 4 packet number, a 2-byte MAC Security Entities (SecY) engine identifier, and a 2-byte short SCI. The method further includes encrypting the data packet and transmitting the encrypted data packet comprising the optimized security tag to an electronic device.

System and method for multi-PHY based MACsec over secure tunnels

Aspects of the embodiments include receiving a packet at a network element of a packet-switched network; identifying a presence of a shared service destination address in a header of the packet; identifying a shared service destination address for the packet based, at least in part, on a destination internet protocol (IP) address stored in a forward information base; and forwarding the packet to the shared service destination address.

Shared service access for multi-tenancy in a data center fabric

Presented herein are techniques for performing packet forwarding or routing using a pipeline of a plurality of tiles. A method includes receiving a packet, parsing the packet to generate a vector, passing the vector to a first tile dedicated to a first type of lookup, performing a lookup in the first tile, storing a result of the first type of lookup in the vector to obtain a first updated vector, passing the first updated vector to a second tile dedicated to a second type of lookup, performing a lookup in the second tile, storing a result of the second type of lookup in the vector to obtain a second updated vector, and transmitting the packet from the network routing device via an output port thereof selected based on the second updated vector.

Re-configurable lookup pipeline architecture for packet forwarding

According to one aspect, a method includes determining whether at least one memory storage unit in a first stage of a multi-stage array is available for use by a first counter associated with the first stage, and allocating the at least one memory storage unit for use by the first counter when the at least one memory storage unit is available. When the at least one memory storage unit is not available for use by the first counter, the method includes identifying a second counter stored in a first location in the first stage, the first location including a first memory storage unit and a second memory storage unit, and moving the second counter to a second stage of the multi-stage array, storing a pointer to the second stage in the first memory storage unit, and allocating the second memory storage unit to the first counter.

Method and apparatus for implementing a statistics counter

Embodiments provide techniques for synchronizing forwarding tables across forwarding pipelines. One embodiment includes receiving, in a network switch comprising a plurality of forwarding pipelines, a plurality of data packets. Each of the plurality of data packets corresponds to a respective one of the plurality of forwarding pipelines. Each of the plurality of forwarding pipelines maintains a respective forwarding table corresponding to a respective plurality of ports managed by the forwarding pipeline. A plurality of update operations to be performed on the forwarding tables are determined, based on the received plurality of data packets. Embodiments further include performing the plurality of update operations on the forwarding tables, such that the forwarding tables across all forwarding pipelines of the plurality of forwarding pipelines are synchronized.

Method and apparatus for synchronizing multiple MAC tables across multiple forwarding pipelines

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Sunnyvale, CA, United States of America

Wanli Wu