If that's CRC errors which cause the OSPF across the link to flap, then
You could configure a RMON event with appropriate thresholds, the OID is
in the ifJnxTable:
aarseniev@labrouter> show snmp mib walk ifJnxTable ascii | grep crc
ifJnxInHslCrcErrors.1 = 0
ifJnxInHslCrcErrors.4 = 0
ifJnxInHslCrcErrors.5 = 0
ifJnxInHslCrcErrors.6 = 0
ifJnxInHslCrcErrors.7 = 0
ifJnxInHslCrcErrors.8 = 0
ifJnxInHslCrcErrors.9 = 0
ifJnxInHslCrcErrors.10 = 0
<skip>
http://www.juniper.net/documentation/en_US/junos14.1/topics/concept/rmon-for-monitoring-service-quality-junos-nm.html
And then add 2 event-policies to proactively disable the LOGICAL unit in
case of rising alarm, and undisable it in case of falling alarm.
Do not disable the main interface, it will extinguish the laser, and
Your falling threshold won't work.
HTH
Thanks
Alex
On 19/10/2015 20:02, james list wrote:
Hello
Indeed it s not flapping the interface most of the times, just crc errors...
Cheers
Il 19/Ott/2015 20:49, "serge vautour" <sergervaut...@gmail.com> ha scritto:
Hello,
If you're worried about the link flapping, just set a Down-->Up hold-timer
directly on the interface.
http://www.juniper.net/documentation/en_US/junos15.1/topics/reference/configuration-statement/hold-time-edit-interfaces.html
Serge
On Mon, Oct 19, 2015 at 11:33 AM, james list <jameslis...@gmail.com>
wrote:
Dear experts,
I currently have a wan link between two MXs that sometimes is experiencing
errors.
I’ve on top of the link OSPF (timer 1/3) as routing protocol and I’d like
to find out any possible way to exclude the link when errors are in place
and below to the 3 seconds of the OSPF timers.
I’ve analyzed the following:
1) BFD with OSPF but it doesn’t support hold-time (as BGP does), in
order to avoid OSPF flapping and generate higher instability I cannot use
it
2) RPM event based script: probe interval is currently not below of 1
second, hence to detect results with no false positive I need some
sampling
and we’re still at 3 seconds or more
Any other possible options ?
OAM ? does it support hold-time ?
Cheers
James
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