diff options
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 |