Carrying next-hop cost information in BGP

Document Type Expired Internet-Draft (idr WG)
Authors Ilya Varlashkin  , Robert Raszuk  , Keyur Patel  , Manish Bhardwaj  , Serpil Bayraktar 
Last updated 2016-11-14 (latest revision 2015-05-16)
Replaces draft-varlashkin-bgp-nh-cost
Stream IETF
Intended RFC status (None)
Expired & archived
pdf htmlized (tools) htmlized bibtex
Stream WG state WG Document
Document shepherd No shepherd assigned
IESG IESG state Expired
Consensus Boilerplate Unknown
Telechat date
Responsible AD (None)
Send notices to (None)

This Internet-Draft is no longer active. A copy of the expired Internet-Draft can be found at


BGPLS provides a mechanism by which Link state and traffic engineering information can be collected from internal networks and shared with external network routers using BGP. BGPLS defines a new Address Family to exchange this information using BGP. BGP Optimal Route Reflection (ORR) provides a mechanism for a centralized BGP Route Reflector to acheive requirements of a Hot Potato Routing as described in Section 11 of [RFC4456]. Optimal Route Reflection requires BGP ORR to overwrite the default IGP location placement of the route reflector; which is used for determining cost to the nexthop contained in the path. This draft augments BGPLS and defines a new extensions to exchange cost information to next-hops for the purpose of calculating best path from a peer perspective rather than local BGP speaker own perspective.


Ilya Varlashkin (
Robert Raszuk (
Keyur Patel (
Manish Bhardwaj (
Serpil Bayraktar (

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