BGP Prefix Independent Convergence
draft-ietf-rtgwg-bgp-pic-08
The information below is for an old version of the document | |||||
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Document | Type | Expired Internet-Draft (rtgwg WG) | |||
Authors | Ahmed Bashandy , Clarence Filsfils , Prodosh Mohapatra | ||||
Last updated | 2019-04-01 (latest revision 2018-09-28) | ||||
Replaces | draft-bashandy-rtgwg-bgp-pic | ||||
Stream | IETF | ||||
Intended RFC status | Informational | ||||
Formats |
Expired & archived
pdf
htmlized (tools)
htmlized
bibtex
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Reviews | |||||
Additional Resources |
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Stream | WG state | WG Document | |||
Document shepherd | Gaurav Dawra | ||||
IESG | IESG state | Expired | |||
Consensus Boilerplate | Unknown | ||||
Telechat date | |||||
Responsible AD | (None) | ||||
Send notices to | "Rob Shakir" <rjs@rob.sh>, Gaurav Dawra <gdawra@cisco.com> |
https://www.ietf.org/archive/id/draft-ietf-rtgwg-bgp-pic-08.txt
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.
Authors
Ahmed Bashandy
(abashandy.ietf@gmail.com)
Clarence Filsfils
(cfilsfil@cisco.com)
Prodosh Mohapatra
(mpradosh@yahoo.com)
(Note: The e-mail addresses provided for the authors of this Internet-Draft may no longer be valid.)