[j-nsp] Link with errors, how to fast detect ?
jameslist72 at gmail.com
Mon Oct 19 12:15:46 EDT 2015
interface do not flap at all every time...
Sometimes ospf neighbor is up and revenue traffic of the customer (tcp
traffic) is loss.
2015-10-19 17:24 GMT+02:00 Alexander Arseniev <arseniev at btinternet.com>:
> Not sure what exactly You are trying to achieve, looks like You want to
> delay announcing this link into OSPF (and by extension, using it for
> transit traffic) unless it has been stable for 3 secs.
> You could achieve this by defaulting this link to broadcast (if it is
> currently configured as"interface-type p2p") - there is a Waiting state
> equal to Dead timer once the OSPF interface comes up. And it interface
> flaps during this time, Waiting timer starts again.
> On 19/10/2015 15:33, james list wrote:
> Dear experts,
> I currently have a wan link between two MXs that sometimes is experiencing
> 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 ?
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