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Flexible Algorithm Definition Advertisement with BGP Link-State

Document Type Replaced Internet-Draft (idr WG)
Expired & archived
Authors Ketan Talaulikar , Peter Psenak , Shawn Zandi , Gaurav Dawra
Last updated 2019-05-29 (Latest revision 2019-02-22)
Replaced by draft-ietf-idr-bgp-ls-flex-algo
RFC stream Internet Engineering Task Force (IETF)
Intended RFC status (None)
Additional resources Mailing list discussion
Stream WG state Adopted by a WG
Document shepherd (None)
IESG IESG state Replaced by draft-ietf-idr-bgp-ls-flex-algo
Consensus boilerplate Unknown
Telechat date (None)
Responsible AD (None)
Send notices to (None)

This Internet-Draft is no longer active. A copy of the expired Internet-Draft is available in these formats:


Flexible Algorithm is a solution that allows routing protocols (viz. OSPF and IS-IS) to compute paths over a network based on user-defined (and hence, flexible) constraints and metrics. The computation is performed by routers participating in the specific network in a distribute manner using a Flex Algorithm definition. This definition provisioned on one or more routers and propagated (viz. OSPF and IS- IS flooding) through the network. BGP Link-State (BGP-LS) enables the collection of various topology information from the network. This draft defines extensions to BGP- LS address-family to advertise the Flexible Algorithm Definition as a part of the topology information from the network.


Ketan Talaulikar
Peter Psenak
Shawn Zandi
Gaurav Dawra

(Note: The e-mail addresses provided for the authors of this Internet-Draft may no longer be valid.)