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doc: update BFD debugging section

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Show more information about BFD debug feature.

Signed-off-by: Rafael Zalamena <rzalamena@opensourcerouting.org>
This commit is contained in:
Rafael Zalamena 2020-04-13 16:34:11 -03:00
parent 9532601587
commit 2b21c5500d
1 changed files with 26 additions and 3 deletions
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doc/user/bfd.rst
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@ -476,13 +476,36 @@ You can also clear packet counters per session with the following commands, only
Session down events: 0 Session down events: 0
Zebra notifications: 4 Zebra notifications: 4
Logging / debugging Debugging
=================== =========
There are no fine grained debug controls for bfdd. Just enable debug logs. By default only informational, warning and errors messages are going to be
displayed. If you want to get debug messages and other diagnostics then make
sure you have `debugging` level enabled:
:: ::
config config
log file /var/log/frr/frr.log debugging log file /var/log/frr/frr.log debugging
log syslog debugging log syslog debugging
You may also fine tune the debug messages by selecting one or more of the
debug levels:
.. index:: [no] debug bfd network
.. clicmd:: [no] debug bfd network
Toggle network events: show messages about socket failures and unexpected
BFD messages that may not belong to registered peers.
.. index:: [no] debug bfd peer
.. clicmd:: [no] debug bfd peer
Toggle peer event log messages: show messages about peer creation/removal
and state changes.
.. index:: [no] debug bfd zebra
.. clicmd:: [no] debug bfd zebra
Toggle zebra message events: show messages about interfaces, local
addresses, VRF and daemon peer registrations.