diff options
| author | Ondrej Zajicek (work) <santiago@crfreenet.org> | 2018-07-04 16:42:42 +0200 |
|---|---|---|
| committer | Ondrej Zajicek (work) <santiago@crfreenet.org> | 2018-07-17 13:16:35 +0200 |
| commit | aa2ec912f5a557f340a633e95b9fbf2ad7937edd (patch) | |
| tree | ce2c7f1173793c16355f2bcab57dd1e22da6d52b /doc | |
| parent | a9d869c484f899f2ef509659a8d928804d020461 (diff) | |
BGP: Long-lived graceful restart enhancements
When use of LLGR is negotiated, handle hold timeout by LLGR instead of by
hard restart. Allow to configure whether BFD session down event should be
handled by GR/LLGR or by hard restart.
Diffstat (limited to 'doc')
| -rw-r--r-- | doc/bird.sgml | 9 |
1 files changed, 6 insertions, 3 deletions
diff --git a/doc/bird.sgml b/doc/bird.sgml index c66e8c72..7cbb4de6 100644 --- a/doc/bird.sgml +++ b/doc/bird.sgml @@ -1977,13 +1977,16 @@ using the following configuration parameters: immediately shut down. Note that this option cannot be used with multihop BGP. Default: disabled. - <tag><label id="bgp-bfd">bfd <M>switch</M></tag> + <tag><label id="bgp-bfd">bfd <M>switch</M>|graceful</tag> BGP could use BFD protocol as an advisory mechanism for neighbor liveness and failure detection. If enabled, BIRD setups a BFD session for the BGP neighbor and tracks its liveness by it. This has an advantage of an order of magnitude lower detection times in case of - failure. Note that BFD protocol also has to be configured, see - <ref id="bfd" name="BFD"> section for details. Default: disabled. + failure. When a neighbor failure is detected, the BGP session is + restarted. Optionally, it can be configured (by <cf/graceful/ argument) + to trigger graceful restart instead of regular restart. Note that BFD + protocol also has to be configured, see <ref id="bfd" name="BFD"> + section for details. Default: disabled. <tag><label id="bgp-ttl-security">ttl security <m/switch/</tag> Use GTSM (<rfc id="5082"> - the generalized TTL security mechanism). GTSM |