I-D Action: draft-ietf-rtgwg-bgp-pic-07.txt
internet-drafts@ietf.org Mon, 02 April 2018 14:57 UTC
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Subject: I-D Action: draft-ietf-rtgwg-bgp-pic-07.txt
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A New Internet-Draft is available from the on-line Internet-Drafts directories. This draft is a work item of the Routing Area Working Group WG of the IETF. Title : BGP Prefix Independent Convergence Authors : Ahmed Bashandy Clarence Filsfils Prodosh Mohapatra Filename : draft-ietf-rtgwg-bgp-pic-07.txt Pages : 30 Date : 2018-04-02 Abstract: In the network comprising thousands of iBGP peers exchanging millions of routes, many routes are reachable via more than one next-hop. Given the large scaling targets, it is desirable to restore traffic after failure in a time period that does not depend on the number of BGP prefixes. In this document we proposed an architecture by which traffic can be re-routed to ECMP or pre-calculated backup paths in a timeframe that does not depend on the number of BGP prefixes. The objective is achieved through organizing the forwarding data structures in a hierarchical manner and sharing forwarding elements among the maximum possible number of routes. The proposed technique achieves prefix independent convergence while ensuring incremental deployment, complete automation, and zero management and provisioning effort. It is noteworthy to mention that the benefits of BGP-PIC are hinged on the existence of more than one path whether as ECMP or primary-backup. The IETF datatracker status page for this draft is: https://datatracker.ietf.org/doc/draft-ietf-rtgwg-bgp-pic/ There are also htmlized versions available at: https://tools.ietf.org/html/draft-ietf-rtgwg-bgp-pic-07 https://datatracker.ietf.org/doc/html/draft-ietf-rtgwg-bgp-pic-07 A diff from the previous version is available at: https://www.ietf.org/rfcdiff?url2=draft-ietf-rtgwg-bgp-pic-07 Please note that it may take a couple of minutes from the time of submission until the htmlized version and diff are available at tools.ietf.org. Internet-Drafts are also available by anonymous FTP at: ftp://ftp.ietf.org/internet-drafts/
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