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| author | Quentin Young <qlyoung@nvidia.com> | 2021-05-14 20:57:06 +0200 |
|---|---|---|
| committer | Quentin Young <qlyoung@nvidia.com> | 2021-07-13 19:19:14 +0200 |
| commit | 389e4f92d67edc301994fb3b6fe9b178e6b962e4 (patch) | |
| tree | 659dfef65f42bda39420cb4ad3f8a0ab1bec674a /doc/user | |
| parent | Merge pull request #8508 from opensourcerouting/systemd-no-lib (diff) | |
| download | frr-389e4f92d67edc301994fb3b6fe9b178e6b962e4.tar.xz frr-389e4f92d67edc301994fb3b6fe9b178e6b962e4.zip | |
bgpd: add knob to config cond-adv scanner period
Adds a knob that sets the time between loc-rib scans for conditional
advertisement.
I chose the range (5-240) because 1 second seems dumb and too easy to
hurt yourself at even moderate scale, 5 seconds you can still hurt
yourself but I could see a use case for it, and 4 minutes should be
enough for anyone (tm)
Signed-off-by: Quentin Young <qlyoung@nvidia.com>
Diffstat (limited to 'doc/user')
| -rw-r--r-- | doc/user/bgp.rst | 16 |
1 files changed, 12 insertions, 4 deletions
diff --git a/doc/user/bgp.rst b/doc/user/bgp.rst index b5950538d..c93a2833c 100644 --- a/doc/user/bgp.rst +++ b/doc/user/bgp.rst @@ -3016,10 +3016,13 @@ The conditional BGP announcements are sent in addition to the normal announcements that a BGP router sends to its peer. The conditional advertisement process is triggered by the BGP scanner process, -which runs every 60 seconds. This means that the maximum time for the conditional -advertisement to take effect is 60 seconds. The conditional advertisement can take -effect depending on when the tracked route is removed from the BGP table and -when the next instance of the BGP scanner occurs. +which runs every 60 by default. This means that the maximum time for the +conditional advertisement to take effect is the value of the process timer. + +As an optimization, while the process always runs on each timer expiry, it +determines whether or not the conditional advertisement policy or the routing +table has changed; if neither have changed, no processing is necessary and the +scanner exits early. .. clicmd:: neighbor A.B.C.D advertise-map NAME [exist-map|non-exist-map] NAME @@ -3027,6 +3030,11 @@ when the next instance of the BGP scanner occurs. exist-map or non-exist-map command in BGP table and conditionally advertises the routes specified by advertise-map command. +.. clicmd:: bgp conditional-advertisement timer (5-240) + + Set the period to rerun the conditional advertisement scanner process. The + default is 60 seconds. + Sample Configuration ^^^^^^^^^^^^^^^^^^^^^ .. code-block:: frr |