[j-nsp] BFD Session

[Payam Chychi]

Check interface stats and look for duplex, run a rapid burst of pings with
small and large payloads (2 tests) also is this a service provider link or
a link you control both ends?

If the latter applies, might be worth looking at the optics and physical
wire... else call your provider and ask for investigation.



On Mon, Mar 27, 2017 at 2:15 PM Masood Ahmad Shah <masoodnt10 at gmail.com>
wrote:

> If it's an intermittent issue with Ping reachability, then check out
> interface errors as well. On top of that find out if there are any memory
> errors (where data gets buffered) in the Syslog i.e. CRC failing..
>
> On Mon, Mar 27, 2017 at 8:55 AM, Jeff Haas <jhaas at juniper.net> wrote:
>
> >
> > > On Mar 5, 2017, at 3:05 AM, Mohammad Khalil <eng.mssk at gmail.com>
> wrote:
> > >
> > > Hi all
> > > I have a BFD session between two routers (which was working normally)
> > > Currently , the session is down from one side and init from the other
> > side
> > > The ISIS adjacency is up
> > > What could be the issue?
> >
> > The other comments in the thread support the observation here: You seem
> to
> > have some form of half-duplexing issue.   You just need to figure out
> which
> > side of the communication is getting dropped.
> >
> > -- Jeff
> >
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-- 
Payam Tarverdyan Chychi
Network Security Specialist / Network Engineer