Active-active access to transparent interconnection of lots of links (TRILL) edges

Patent metadata

Field	Value
Publication number	US-10104035-B2
Application number	US-201514711408-A
Country	US
Kind code	B2
Filing date	May 13, 2015
Priority date	May 13, 2014
Publication date	Oct 16, 2018
Grant date	Oct 16, 2018

Abstract

A routing bridge at an edge of a transparent interconnection of lots of links (TRILL) campus, comprises a first access port and a second access port each designated as one of a multi-chassis link aggregation (MC-LAG) designated forward (DF) port and an MC-LAG non-DF port, wherein the first access port is associated with a first pseudo-nickname, and a second access port is associated with a second pseudo-nickname, wherein a frame received via the first access port from a first customer equipment (CE) is replicated to generate a replicated frame, wherein the replicated frame is forwarded via the second access port to a second CE when the first pseudo-nickname and the second pseudo-nickname are the same, and when the first pseudo-nickname and the second pseudo-nickname are different and the second access port has been designated as the MC-LAG DF port.

First claim

What is claimed is:

1. A routing bridge at an edge of a transparent interconnection of lots of links (TRILL) campus, comprising:
a first access port designated as one of a multi-chassis link aggregation (MC-LAG) designated forwarder (DF) port and an MC-LAG non-DF port, wherein the first access port is associated with a first pseudo-nickname; and
a second access port designated as one of the MC-LAG DF ports and MC-LAG non-DF ports, wherein the second access port is associated with a second pseudo-nickname,
wherein a frame received via the first access port from a first customer equipment (CE) is replicated to generate a replicated frame,
wherein the replicated frame is forwarded via the second access port to a second CE when the first pseudo-nickname of the routing bridge and the second pseudo-nickname of the routing bridge are the same, and when the first pseudo-nickname of the routing bridge and the second pseudo-nickname of the routing bridge are different and the second access port has been designated as the MC-LAG DF port,
wherein the first pseudo-nickname and the second pseudo-nickname are the same when the first CE coupled to the first access port and the second CE coupled to the second access port are coupled to a same group of routing bridges, and
wherein the first pseudo-nickname and the second pseudo-nickname are different when the first CE and the second CE are coupled to a different group of routing bridges.

2. The routing bridge of claim 1 , wherein the routing bridge is configured to encapsulate the frame to generate an encapsulated frame.

3. The routing bridge of claim 2 , wherein the encapsulated frame is associated with the first pseudo-nickname.

4. The routing bridge of claim 3 , wherein the routing bridge is configured to distribute the encapsulated frame into the TRILL campus.

5. The routing bridge of claim 1 , wherein the routing bridge is a router.

6. The routing bridge of claim 1 , wherein the frame is a flooded broadcast, a flooded unicast, or a flooded multicast data frame.

7. The routing bridge of claim 1 , wherein each of the first CE and the second CE is one of a computer and a server.

8. A method for implementing active-active access to edges of a transparent interconnection of lots of links (TRILL) campus, comprising:
designating a first access port of a routing bridge as one of a multi-chassis link aggregation (MC-LAG) designated forwarder (DF) port and an MC-LAG non-DF port, wherein the first access port is associated with a first pseudo-nickname;
designating a second access port of the routing bridge as one of the MC-LAG DF ports and MC-LAG non-DF ports, wherein a first customer equipment (CE) coupled to the first access port and a second CE coupled to the second access port are coupled to a same group of routing bridges, wherein the second access port is associated with a second pseudo-nickname;
receiving a frame via the first access port from the first CE;
replicating the frame to generate a replicated frame; and
forwarding the replicated frame via the second access port to the second CE when the second pseudo-nickname of the routing bridge and the first pseudo-nickname of the routing bridge are the same.

9. The method of claim 8 , further comprising encapsulating the frame to generate an encapsulated frame.

10. The method of claim 9 , wherein the encapsulated frame is associated with the first pseudo-nickname.

11. The method of claim 10 , further comprising multicasting the encapsulated frame to the TRILL campus.

12. The method of claim 8 , wherein the routing bridge is a router.

13. The method of claim 8 , wherein the frame is a flooded broadcast, unicast, or multicast (BUM) data frame.

14. The method of claim 8 , wherein each of the first CE and the second CE is one of a computer and a server.

15. A method for implementing active-active access to edges of a transparent interconnection of lots of links (TRILL) campus, comprising:
designating a first access port of a routing bridge as one of a multi-chassis link aggregation (MC-LAG) designated forwarder (DF) port and an MC-LAG non-DF port, wherein the first access port is associated with a first pseudo-nickname;
designating a second access port of the routing bridge as one of the MC-LAG DF ports and MC-LAG non-DF ports, wherein a first customer equipment (CE) coupled to the first access port and a second CE coupled to the second access port are coupled to a different group of routing bridges, wherein the second access port is associated with a second pseudo-nickname;
receiving a frame via the first access port from the first CE;
replicating the frame to generate a replicated frame; and
forwarding the replicated frame via the second access port to the second CE when the second pseudo-nickname of the routing bridge and the first pseudo-nickname of the routing bridge are different, and the second access port was designated as the MC-LAG DF port.

16. The method of claim 15 , further comprising encapsulating the frame to generate an encapsulated frame.

17. The method of claim 16 , wherein the encapsulated frame is associated with the first pseudo-nickname.

18. The method of claim 17 , further comprising multicasting the encapsulated frame to the TRILL campus.

19. The method of claim 15 , wherein the routing bridge is a router.

20. The method of claim 15 , wherein the frame is a flooded broadcast, unicast, or multicast (BUM) data frame.

21. A method for implementing active-active access to edges of a transparent interconnection of lots of links (TRILL) campus, comprising:
designating a first access port of a routing bridge as a multi-chassis link aggregation (MC-LAG) non-designated forwarder (non-DF) port, wherein the first access port is associated with a first pseudo-nickname;
designating a second access port of the routing bridge as a MC-LAG designated forwarder (DF) port, wherein a first customer equipment (CE) coupled to the first access port and a second CE coupled to the second access port are coupled to a same group of routing bridges, wherein the second access port is associated with a second pseudo-nickname;
receiving a frame via the first access port from the first CE;
replicating the frame to generate a replicated frame;
when the second pseudo-nickname of the routing bridge and the first pseudo-nickname of the routing bridge are the same, forwarding the replicated frame via the second access port to the second CE; and
when the second pseudo-nickname of the routing bridge and the first pseudo-nickname of the routing bridge are different and the second access port of the routing bridge was designated as the MC-LAG DF port, forwarding the replicated frame via the second access port to the second CE.

22. A method of providing active-active access to a transparent interconnection of lots of links (TRILL) campus implemented by a routing bridge having a first access port associated with a first customer equipment (CE) and a second access port associated with a second CE, comprising:
receiving, by the routing bridge, a frame from the first CE via the first access port;
replicating, by the routing bridge, the frame to generate a replicated frame;
determining, by the routing bridge, that a pseudo-nickname associated with the first access port and the pseudo-nickname associated with the second access port are the same and that the first access port and the second access port are associated with different multi-chassis link aggregations (MC-LAGs); and
forwarding, by the ro

Assignees

• Futurewei Technologies Inc

Inventors

• Eastlake Iii Donald Eggleston
• Li Yizhou
• Hao Weiguo

Classifications

• H04L12/18

  for broadcast or conference {, e.g. multicast} · CPC title

• H04L12/4633 Primary

  Interconnection of networks using encapsulation techniques, e.g. tunneling · CPC title

• H04L49/253

  using establishment or release of connections between ports · CPC title

• H04L61/103 Primary

  across network layers, e.g. resolution of network layer into physical layer addresses or address resolution protocol [ARP] · CPC title

• H04L45/66

  Layer 2 routing, e.g. in Ethernet based MAN's · CPC title