Simple Virtual Aggregation (S-VA)

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Publisher: IETF
Doc Type: Informational
Pages: 8
Abstract: 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.
Publication Date: 2012-10-01
Status Note: Informational
DOI: 10.17487/RFC6769
Link: https://doi.org/10.17487/RFC6769
Author(s): Robert Raszuk
Jakob Heitz
Alton Lo
Lixia Zhang
Xiaohu Xu
Keyword(s): BGP

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▶ IETF RFC 6769 (2012-10-01)

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IETF RFC 1997 [Active*]
IETF RFC 2119 [Active*]
IETF RFC 5082 [Active*]

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IETF RFC 4271 [Active*]

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Referenced By

IETF RFC 7938 [Active*]