Back to results
US 2014/0229573 A1Published application
Neighbor Discovery for IPV6 Switching Systems
AssigneeCisco Technology, Inc.
InventorsMing Zhang, Chengelpet Ramesh
Life of this patent
Estimating the term…
Abstract
A distributed neighbor discovery module is disclosed where all neighbor discovery operations and functionalities may be distributed to a switch device processor. Each neighbor discovery process on a switch device may run as an individual neighbor discovery router node. There may be no coordination between neighbor discovery processes occurring on different switch devices. All other traffic, including both IPv6 control traffic and data traffic destined to the router may be processed by the central controller processor.
Claims20
A method comprising:
- receiving IPv6 traffic;
- distributing the IPv6 traffic to a switch device processor running a neighbor discovery process if the IPv6 traffic comprises one or more neighbor discovery messages identified in an access list;
- and
- sending the other IPv6 traffic to a central processor for processing.
1 more element
An apparatus comprising:
- a memory;
- and
- a processor coupled to the memory, wherein the processor is operative to:
- perform a number of neighbor discovery processes using the same router IP address and the same router MAC address;
- receive a multicast neighbor discovery packet from a host;
- if the multicast neighbor discovery packet is destined to a plurality of nodes, handling the multicast neighbor discovery packet with a local neighbor discovery process;
- and
- if the multicast neighbor discovery packet is destined to a solicited node address and the multicast discovery packet destination matches the local solicited node address, handling the multicast neighbor discovery packet with a local neighbor discovery process.
5 more elements
An apparatus comprising:
- a memory;
- and
- a processor coupled to the memory, wherein the processor is operative to:
- receive IPv6 traffic;
- distribute the IPv6 traffic to a switch device processor running a neighbor discovery process if the IPv6 traffic comprises one or more neighbor discovery messages identified in an access list;
- and
- send the other IPv6 traffic to a central processor for processing.
4 more elements
Dependencies are inferred from the claim text.