Invention Grant
- Patent Title: Method to reduce IGP routing information
- Patent Title (中): 减少IGP路由信息的方法
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Application No.: US12283334Application Date: 2008-09-11
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Publication No.: US07957289B2Publication Date: 2011-06-07
- Inventor: Mark Sundt , James Uttaro
- Applicant: Mark Sundt , James Uttaro
- Applicant Address: US GA Atlanta
- Assignee: AT&T Intellectual Property I, L.P.
- Current Assignee: AT&T Intellectual Property I, L.P.
- Current Assignee Address: US GA Atlanta
- Agency: Hanley, Flight & Zimmerman
- Main IPC: G01R31/08
- IPC: G01R31/08 ; H04L12/28

Abstract:
A system and method for routing traffic from an ingress provider edge router to an egress provider edge router that eliminates the need to share state information between the ingress provider edge router and a plurality of core routers in a core network. The ingress provider edge router and egress provider edge router are each coupled to at least two core routers among the plurality of core routers in the core network, the ingress provider edge router learning routes with a next hop equal to an IP address of the egress provider edge router through an internal border gateway protocol (iBGP). The ingress provider edge router balances traffic flows on uplinks between the ingress provider edge router and the at least two core routers coupled to the ingress provider edge router without knowledge of network topology in the core network.
Public/Granted literature
- US20100061381A1 Method to reduce IGP routing information Public/Granted day:2010-03-11
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