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RFC 6769
Title: Simple Virtual Aggregation (S-VA)
Author: R. Raszuk, J. Heitz,
A. Lo, L. Zhang, X. Xu
Status: Informational
Stream: IETF
Date: October 2012
Mailbox: robert@raszuk.net,
jakob.heitz@ericsson.com,
altonlo@aristanetworks.com,
lixia@cs.ucla.edu,
xuxh@huawei.com
Pages: 8
Characters: 16565
Updates/Obsoletes/SeeAlso: None
I-D Tag: draft-ietf-grow-simple-va-12.txt
URL: http://www.rfc-editor.org/rfc/rfc6769.txt
All BGP routers in the Default-Free Zone (DFZ) are required to carry
all routes in the Default-Free Routing Table (DFRT). This document
describes a technique, Simple Virtual Aggregation (S-VA), that allows
some BGP routers not to install all of those routes into the
Forwarding Information Base (FIB).
Some routers in an Autonomous System (AS) announce an aggregate (the
VA prefix) in addition to the routes they already announce. This
enables other routers not to install the routes covered by the VA
prefix into the FIB as long as those routes have the same next-hop as
the VA prefix.
The VA prefixes that are announced within an AS are not announced to
any other AS. The described functionality is of very low operational
complexity, as it proposes a confined BGP speaker solution without
any dependency on network-wide configuration or requirement for any
form of intra-domain tunneling. This document is not an Internet Standards Track specification; it is published for informational
purposes.
This document is a product of the Global Routing Operations Working Group of the IETF.
INFORMATIONAL: This memo provides information for the Internet community.
It does not specify an Internet standard of any kind. Distribution of
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