Hi Alef,

When you do show frame-relay pvc what interface is the PVC bound to? perhaps
its already associated with another subinterface?  Personally I have had
limited success with the "clear frame-relay inverse-arp" command so I tend
not to consider using it but your mileage may vary.  However there are two
other ways that I know of to clear the FR PVC mappings - you have already
discovered the easiest but more time consuming (due to the reload time)


conf t
int s0/1/0
no frame-relay inverse-arp
do write
do reload

If you have the interface shutdown first, there's no way that fr inv-arp
should be mapping something before you put the config in.

an alternative is something like

show run | b Serial0/1/0
and look at all the subinterfaces etc.

then

int s0/1/0
 shutdown
 encapsulation ppp

and then paste the old s0/1/0 and associated subinterface config back in
(since changing the encapsulation will blow the fr related config away)

then no shut s0/1/0 and the sub-interfaces - it's a little more work but
quicker since there's no reload involved.

Cheers,
Adam

On Thu, Mar 3, 2011 at 5:14 PM, Alef <[email protected]> wrote:

> Hi,
> In Vol1, Lab1, page 25 i try to assign dlci 204 but it always gives up this
> command. Doing a show frame-relay pvc shows that it is indeed already in
> use. I have gone ahead and put no frame-relay inverse-arp on all FR
> interfaces (which does not show up in the config by the way), and reload all
> routers with FR interfaces (no easier way to clear pvc mappings?) but still
> i get this message. Anyone got any suggestions ?
>
>
> R2(config)#int Serial0/1/0.24
> R2(config-subif)#frame-relay interface-dlci 204
> %PVC already assigned to interface Serial0/1/0
>
> Kind regards,
> Alef
>
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