Internal BGP downloader

Details Internal BGP downloader Internal BGP downloader

2003-05-01

2011-10-11

Harper, Kevin C (Department: 2462)

Multiplex communications

Network configuration determination

Reexamination Certificate

active

08036139

ABSTRACT:
Improved systems and methods for distributing interdomain routing information within an Autonomous System (AS). A protocol extension to BGP, iBGPd (internal Border Gateway Protocol downloader), has been developed to replace IBGP in distributing BGP interdomain routing information within an AS. The iBGPd technique distributes routing information hop-by-hop using a reliable multi-party transport protocol. Scalability is greatly improved since the use of a full mesh of TCP connections is avoided. Also, there are improvements in routing information propagation delay and routing stability. Drawbacks related to the use of route reflectors and confederations are avoided.

REFERENCES:
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patent: 2002/0024934 (2002-02-01), Galand et al.
patent: 2003/0021232 (2003-01-01), Duplaix et al.
patent: 2004/0006640 (2004-01-01), Inderieden et al.
Rekhter, Y., et al. “A Border Gateway Protocol 4 BGP-4,” RFC 1771, Internet Engineering Task Force, Mar. 1995, 57 pages.
Stewart, John W., III,BGP4 Inter-Domain Routing in the Internet, Addison-Wesley, 1999, Chapter 4: “BGP Extensions,” pp. 88-116.
D. Haskin, “A BGP/IDRP Route Server Alternative to a Full Mesh Routing”, RFC 1863, Oct. 1995.

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