Re: Frame Relay EEK

Is fr eek part of r/s lab blueprint?

Aaron

On Apr 5, 2011, at 8:39 AM, Garth Bryden <hacked.the.planet.on.28.8k.dialup_at_gmail.com> wrote:

> Hi Group,
>
> I have come across an interesting frame relay eek issue, and I'm wondering
> if anybody had seen it before or had an explanation as to why it occurs, I
> had trouble finding information using good ol google.
>
> Our topology is as follows
>
> [ R4 ] ----DLCI 405-------- [ FR CLOUD ] -----DLCI 504----- R5
>
> I have configured FR EEK's between R4 and R5, with the following
> configuration-
>
> R4
>
> interface Serial0/0/0
> ip address 155.18.200.4 255.255.255.0
> encapsulation frame-relay
> frame-relay class FREEK
> !
> interface Serial0/0/0.999 multipoint
> frame-relay interface-dlci 401
> frame-relay interface-dlci 402
> frame-relay interface-dlci 403
> frame-relay interface-dlci 413
> !
> map-class frame-relay FREEK
> frame-relay end-to-end keepalive mode reply
> frame-relay end-to-end keepalive timer recv 5
> frame-relay end-to-end keepalive event-window recv 10
> frame-relay end-to-end keepalive error-threshold recv 8
>
> R5
>
> interface Serial0/0/0
> no ip address
> encapsulation frame-relay
> !
> interface Serial0/0/0.200 multipoint
> ip address 155.18.200.5 255.255.255.0
> frame-relay interface-dlci 503
> frame-relay interface-dlci 504
> class FREEK
> !
> map-class frame-relay FREEK
> frame-relay end-to-end keepalive mode request
> frame-relay end-to-end keepalive timer send 5
> frame-relay end-to-end keepalive event-window send 10
> frame-relay end-to-end keepalive error-threshold send 8
>
> To test that the configuration is working, I remove the class FREEK from R5
> then wait on R4 until enough errors have occured to cause the PVC to go from
> UP->DOWN. I can see this occur, but then immediately after the PVC comes
> back up, and all the EEK Counters have reset to 0! I managed to look at the
> output of show frame-relay end-to-end keepalives fast enough to see it
> actually removes the 405 PVC and re-installs it.....
>
> I tested on both ends and this occured on R4 but not on R5. I ended up
> applying the "frame-relay interface-dlci 405" to the physical interface of
> Serial0/0/0 to which resolved the problem, but I was wondering why it was
> occuring? Would LMI be removing the PVC on the DTE then when the next status
> update comes from the FR Switch re-add it??
>
> Cheers,
>
> Garth
>
>
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Received on Tue Apr 05 2011 - 11:50:31 ART