Cisco Technology, Inc.

Apoorva Karan

Clarence Filsfils

Satya Ranjan Mohanty

Yuri Tsier

Soumya Roy

Gregory J Shepherd

Dino Farinacci

Yiqun Cai

Swadesh Agrawal

Heidi H Ou

Liming Wei

John M Zwiebel

In one embodiment, a method by an apparatus of a Border Gateway Protocol (BGP) network includes accessing an attestation token for the apparatus. The method further includes encoding the attestation token in a BGP signaling message. The method further includes sending the BGP signaling message with the encoded attestation token to a second apparatus of the BGP network.

Applying attestation to the border gateway protocol (BGP)

In some embodiments, a first provider edge (PE) router is coupled to a first customer edge (CE) router; a second CE router; and a second PE router. The second PE router is coupled to the first CE router and the second CE router. The first PE router is configured with a primary label comprising a primary next hop of the first CE router and a backup next hop of the second PE router and a secondary label comprising a primary next hop of the first CE router and a backup next hop of the second CE router. The second PE router is configured with a primary label comprising a primary next hop of the first CE router and a backup next hop of the first PE router and a secondary label comprising a primary next hop of the first CE router and a backup next hop of the second CE router.

Fast convergence in access networks

In one embodiment, a method includes identifying a packet at an upstream node in communication with a source and in communication with a downstream node through equal cost multiple paths including first and second multi-access networks, the packet transmitted on the first multi-access network and associated with a multicast group, and transmitting from the upstream node a request to the downstream node to join the group on the second multi-access network, if the upstream node is already transmitting data to the group on the second multi-access network, or a bandwidth utilization at the first multi-access network exceeds a specified threshold. An apparatus is also disclosed.

Bandwidth utilization for equal cost multiple paths

In one embodiment, a method includes receiving a multicast join message at a node having a plurality of interfaces, identifying the interface at which the join message was received, and selecting one or more of the interfaces to transmit the join message based on whether the join message was received on a ring interface. If the join message was received on one of the ring interfaces, the join message is transmitted on another of the interfaces. If the join message was not received on one of the ring interfaces, the join message is transmitted on both of the ring interfaces. The method further includes receiving multicast data and transmitting the multicast data on the interface at which the join message was received.

Multicast fast reroute for network topologies

Growing community of inventors

San Ramon, CA, United States of America

Apoorva Karan