diff options
| author | Ondrej Zajicek (work) <santiago@crfreenet.org> | 2018-04-03 16:53:58 +0200 |
|---|---|---|
| committer | Ondrej Zajicek (work) <santiago@crfreenet.org> | 2018-04-03 16:53:58 +0200 |
| commit | a63d20aa872364873d0fbfa03d1c3c6d9a1889eb (patch) | |
| tree | 9e86f0e420806ab055dc87b2cdb91d259b4685aa /doc | |
| parent | 157f6c2aaddbf8668e33ed6efcd874a6677fa005 (diff) | |
Doc: Documentation for BGP extended next hop feature
Thanks to Arvin Gan for the bugreport.
Diffstat (limited to 'doc')
| -rw-r--r-- | doc/bird.sgml | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/doc/bird.sgml b/doc/bird.sgml index 78569d28..fde47e65 100644 --- a/doc/bird.sgml +++ b/doc/bird.sgml @@ -2562,6 +2562,15 @@ be used in explicit configuration. explicitly (to conserve memory). This option requires that the connected routing table is <ref id="dsc-table-sorted" name="sorted">. Default: off. + <tag><label id="bgp-extended-next-hop">extended next hop <m/switch/</tag> + BGP expects that announced next hops have the same address family as + associated network prefixes. This option provides an extension to use + IPv4 next hops with IPv6 prefixes and vice versa. For IPv4 / VPNv4 + channels, the behavior is controlled by the Extended Next Hop Encoding + capability, as described in <rfc id="5549">. For IPv6 / VPNv6 channels, + just IPv4-mapped IPv6 addresses are used, as described in + <rfc id="4798"> and <rfc id="4659">. Default: off. + <tag><label id="bgp-add-paths">add paths <m/switch/|rx|tx</tag> Standard BGP can propagate only one path (route) per destination network (usually the selected one). This option controls the add-path protocol |