Invention Grant
US08351429B2 Method and apparatus for providing fast reroute of a packet that may be forwarded on one of a plurality of equal cost multipath routes through a network
有权
用于提供可以通过网络在多条相同成本的多路径路径之一上转发的分组的快速重新路由的方法和装置
- Patent Title: Method and apparatus for providing fast reroute of a packet that may be forwarded on one of a plurality of equal cost multipath routes through a network
- Patent Title (中): 用于提供可以通过网络在多条相同成本的多路径路径之一上转发的分组的快速重新路由的方法和装置
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Application No.: US12772528Application Date: 2010-05-03
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Publication No.: US08351429B2Publication Date: 2013-01-08
- Inventor: Hamid Assarpour
- Applicant: Hamid Assarpour
- Applicant Address: US NJ Basking Ridge
- Assignee: Avaya Inc.
- Current Assignee: Avaya Inc.
- Current Assignee Address: US NJ Basking Ridge
- Agency: Anderson Gorecki & Rouille LLP
- Main IPC: H04L12/26
- IPC: H04L12/26 ; H04L12/28
Abstract:
A method, apparatus and computer program product for providing fast reroute of a packet that may be forwarded on one of a plurality of Equal Cost Multi Path (ECMP) routes through a network is presented. A packet is received by a Forwarding Data Unit (FDU) in a data plane of a network element. The unicast packet is routed at L3, and ECMP is enabled for a next hop for the unicast packet. An ECMP route is selected for forwarding the packet to a destination port. A lookup is performed in a port state table maintained by the FDU to determine an available local port for said ECMP route that is in an UP state for the destination, and if no local port is UP, then a lookup is performed in the port state table to determine an available remote port that is in an UP state for the selected ECMP route.
Public/Granted literature
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