[j-nsp] BFD Session

[Mohammad Khalil]

admin at CR03# run show interfaces ge-2/0/0 | grep MTU
  Link-level type: 52, MTU: 1600, Speed: 1000mbps, BPDU Error: None,
    Protocol bridge, MTU: 1600
    Protocol inet, MTU: 1578
    Protocol iso, MTU: 1575
    Protocol inet6, MTU: 1578
    Protocol mpls, MTU: 1566
    Protocol multiservice, MTU: Unlimited
    Protocol multiservice, MTU: Unlimited

On 5 March 2017 at 13:19, Mohammad Khalil <eng.mssk at gmail.com> wrote:

> The inet MTU shows as 1578 , so I have pinged as below:
> run ping 10.0.0.10 size 1550 do-not-fragment
> sometime it shows packet loss and sometimes no
>
> On 5 March 2017 at 13:00, <sthaug at nethelp.no> wrote:
>
>> > As well , I have checked the log messages , and I can see the below
>> message:
>> > RPD_ISIS_ADJDOWN : ISIS lost L2 adjacency reason 3-way handshake
>>
>> In which case it sounds like ISIS is also having problems. Can you
>> ping across the link with full MTU (inet MTU - 28, physical interface
>> - 42, both assuming no VLAN) and do-not-fragment? And no packet loss?
>>
>> Steinar Haug, Nethelp consulting, sthaug at nethelp.no
>>
>> >
>> > BR,
>> > Mohammad
>> >
>> > On 5 March 2017 at 12:24, Mohammad Khalil <eng.mssk at gmail.com> wrote:
>> >
>> > > Hi
>> > > I have removed the whole filter from the lo0 interface and the same
>> applies
>> > >
>> > > BR,
>> > > Mohammad
>> > >
>> > > On 5 March 2017 at 12:03, <sthaug at nethelp.no> wrote:
>> > >
>> > >> > 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?
>> > >>
>> > >> Check if you you have firewall filter on lo0 which blocks UDP port
>> 3784
>> > >> or 3785.
>> > >>
>> > >> Steinar Haug, Nethelp consulting, sthaug at nethelp.no
>> > >>
>> > >
>> > >
>>
>
>