Invention Grant
US08717888B2 Optimizations for N-way gateway load balancing in fabric path switching networks
有权
在路由交换网络中进行N路网关负载均衡优化
- Patent Title: Optimizations for N-way gateway load balancing in fabric path switching networks
- Patent Title (中): 在路由交换网络中进行N路网关负载均衡优化
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Application No.: US13331626Application Date: 2011-12-20
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Publication No.: US08717888B2Publication Date: 2014-05-06
- Inventor: Ramkumar Sankar , Naveen Pethandlahally Narayan Gowda
- Applicant: Ramkumar Sankar , Naveen Pethandlahally Narayan Gowda
- Applicant Address: US CA San Jose
- Assignee: Cisco Technology, Inc.
- Current Assignee: Cisco Technology, Inc.
- Current Assignee Address: US CA San Jose
- Agency: Patterson & Sheridan, LLP
- Priority: IN2986/DEL/2011 20111018
- Main IPC: H04L12/28
- IPC: H04L12/28

Abstract:
Techniques are disclosed for providing n-way gateway load-balancing in a fabric path switching Systems (FSS), such as a layer 2 multipath (L2MP) network in a large data center. An access switch in a L2MP network may learn an emulated switch IDs through FHRP “hello” messages sent by an “active” gateway router for each FHRP group. Further, the access switch may learn which links an emulated switch is reachable over by evaluating link state messages (e.g., IS-IS messages) sent by the gateway routers used to construct the emulated switch. Doing so allows the access switch to learn both the ID of an emulated switch and a set of links over which the emulated switch may be reached, thereby allowing the access switch to load balance traffic to the emulated switch.
Public/Granted literature
- US20130094357A1 FHRP OPTIMIZATIONS FOR N-WAY GATEWAY LOAD BALANCING IN FABRIC PATH SWITCHING NETWORKS Public/Granted day:2013-04-18
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