[j-nsp] LDP flaps specifically present on ACX Juniper routers (ACX4000 and ACX1100)

[Leonidas Romualdo]

Upgrade the Firmware!

We had the same problem with the ACXs..

On Saturday, 30 April 2016, joel ahumuza <ahm.joel at gmail.com> wrote:

> Hi Alexandre,
>
> Unfortunately the filters are not helping, the flaps are still present 😞.
> Still looking for ways to mitigate this issue.
>
> On 29 April 2016 at 11:14, joel ahumuza <ahm.joel at gmail.com <javascript:;>>
> wrote:
>
> > Hi All,
> > Aaron,
> > Not all ldp interfaces are /32, my loopbacks are /32s other interfaces
> > attached to the ldp process are p2p links with /31 masks.
> >
> > Alexandre,
> > Thank you, I have applied the filters to our devices. I will monitor and
> > advise.
> >
> > On 28 April 2016 at 23:43, Alexandre Guimaraes <
> > alexandre.guimaraes at ascenty.com <javascript:;>> wrote:
> >
> >> Had experienced the same thing.
> >>
> >> After adding this to the loopback filter, the problem gone
> >>
> >>
> >> set firewall family inet filter PROTECT-RE term aceita-ldp from protocol
> >> tcp
> >> set firewall family inet filter PROTECT-RE term aceita-ldp from protocol
> >> udp
> >> set firewall family inet filter PROTECT-RE term aceita-ldp from
> >> source-port 646
> >> set firewall family inet filter PROTECT-RE term aceita-ldp from
> >> destination-port 646
> >> set firewall family inet filter PROTECT-RE term aceita-ldp then accept
> >>
> >> Alexandre
> >>
> >> -----Mensagem original-----
> >> De: juniper-nsp [mailto:juniper-nsp-bounces at puck.nether.net
> <javascript:;>] Em nome de
> >> joel ahumuza
> >> Enviada em: quinta-feira, 28 de abril de 2016 12:38
> >> Para: juniper-nsp at puck.nether.net <javascript:;>
> >> Cc: tech at roketelkom.co.ug <javascript:;>
> >> Assunto: [j-nsp] LDP flaps specifically present on ACX Juniper routers
> >> (ACX4000 and ACX1100)
> >>
> >> Hi All,
> >>
> >> We are experiencing an issue with ACX routers running on 12.3X54-D20.7
> >> where the LDP sessions are continuously flapping, the logs indicate the
> >> following;
> >>
> >> Apr 21 03:36:31  hostname rpd[2299]: RPD_LDP_SESSIONDOWN: LDP session
> >> x.x.x.x is down, reason: hold time expired Apr 21 03:36:34  hostname
> >> rpd[2299]: RPD_LDP_NBRDOWN: LDP neighbor x.x.x.x
> >> (lo0.0) is down
> >> Apr 21 03:36:38  hostname rpd[2299]: RPD_LDP_NBRDOWN: LDP neighbor
> x.x.x.x
> >> (lo0.0) is down
> >> Apr 21 03:36:38  hostname rpd[2299]: RPD_LDP_SESSIONDOWN: LDP session
> >> x.x.x.x is down, reason: all adjacencies down Apr 21 03:55:34  hostname
> >> rpd[2299]: RPD_LDP_SESSIONDOWN: LDP session x.x.x.x is down, reason:
> >> received notification from peer Apr 21 03:55:34  hostname rpd[2299]:
> >> RPD_LDP_SESSIONDOWN: LDP session x.x.x.x is down, reason: received
> >> notification from peer Apr 21 03:55:35  hostname rpd[2299]:
> >> RPD_LDP_SESSIONDOWN: LDP session x.x.x.x is down, reason: received
> >> notification from peer Apr 21 03:55:35  hostname rpd[2299]:
> >> RPD_LDP_SESSIONDOWN: LDP session x.x.x.x is down, reason: received
> >> notification from peer
> >>
> >> The physical connections are okay, no flaps or errors on the p2p
> >> connections We are running ISIS as the IGP, whose adjacency is stable.
> >>
> >> Actions taken from our team was;
> >> - Increase the hold time setting on the ldp enabled interfaces.
> >> - Increase the time interval on the same ldp enabled interfaces.
> >> - setting the ldp session protection setting on the ldp enabled loopback
> >> interface.
> >>
> >> Unfortunately the actions did not yield much since the flaps have been
> >> ongoing.
> >>
> >> Anyone have any Idea on what the problem / solution might be?
> >>
> >> --
> >> Blessings,
> >>
> >> AJ.
> >> SkypeID - jl.hmz
> >> ahumuza-joel.blogspot.ug
> >> _______________________________________________
> >> juniper-nsp mailing list juniper-nsp at puck.nether.net <javascript:;>
> >> https://puck.nether.net/mailman/listinfo/juniper-nsp
> >>
> >
> >
> >
> > --
> > Blessings,
> >
> > AJ.
> > SkypeID - jl.hmz
> > ahumuza-joel.blogspot.ug
> >
>
>
>
> --
> Blessings,
>
> AJ.
> SkypeID - jl.hmz
> ahumuza-joel.blogspot.ug
> _______________________________________________
> juniper-nsp mailing list juniper-nsp at puck.nether.net <javascript:;>
> https://puck.nether.net/mailman/listinfo/juniper-nsp



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