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| -rw-r--r-- | doc/bird.sgml | 19 |
1 files changed, 19 insertions, 0 deletions
diff --git a/doc/bird.sgml b/doc/bird.sgml index 184c9e46..c66e8c72 100644 --- a/doc/bird.sgml +++ b/doc/bird.sgml @@ -2108,6 +2108,25 @@ using the following configuration parameters: re-establish after a restart before deleting stale routes. Default: 120 seconds. + <tag><label id="bgp-long-lived-graceful-restart">long lived graceful restart <m/switch/|aware</tag> + The long-lived graceful restart is an extension of the traditional + <ref id="bgp-graceful-restart" name="BGP graceful restart">, where stale + routes are kept even after the <ref id="bgp-graceful-restart-time" + name="restart time"> expires for additional long-lived stale time, but + they are marked with the LLGR_STALE community, depreferenced, and + withdrawn from routers not supporting LLGR. Like traditional BGP + graceful restart, it has three states: disabled, aware (receiving-only), + and enabled. Note that long-lived graceful restart requires at least + aware level of traditional BGP graceful restart. Default: aware, unless + graceful restart is disabled. + + <tag><label id="bgp-long-lived-stale-time">long lived stale time <m/number/</tag> + The long-lived stale time is announced in the BGP long-lived graceful + restart capability and specifies how long the neighbor would keep stale + routes depreferenced during long-lived graceful restart until either the + session is re-stablished and synchronized or the stale time expires and + routes are removed. Default: 3600 seconds. + <tag><label id="bgp-interpret-communities">interpret communities <m/switch/</tag> <rfc id="1997"> demands that BGP speaker should process well-known communities like no-export (65535, 65281) or no-advertise (65535, |