Re: Frame-Relay dlci Confusion posted 11/21/2008
- Subject: Re: Frame-Relay dlci Confusion
- From: "Ahmed Ejaz" <aahmedejaz@xxxxxxxxx>
- Date: Fri, 21 Nov 2008 12:46:53 +0500
- Cc: ccielab@xxxxxxxxxxxxxx, narbikk@xxxxxxxxx
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First of all what you are asking is a bit confusing. If the lab asks you to
disable inverse arp and the routers should learn dlci's dynamicaly then
thats not possible as far as i know. In this situation you must configure
the hub router interface which is R3 subinterface as multipoint without
disabling the inverse arp feature. The router might learn a lot of dlci's
which you can verify through ' show frame-relay map ' command. Then what you
do is staticaly disable the dlci's which you do not need i-e ' no
frame-relay inverse-arp ip 213 ' , this way you will have only have the
dlci's pointing to R1 and R2. Same thing you do on R1 and R2 without
disabling the inverse arp and blocking the dlci's which you do not need.
I hope this works for you.
On Fri, Nov 21, 2008 at 12:28 PM, ZEESHAN SANAULLAH <
> Hello GS !!!!
> I am a little confused in this basic thing regarding frame-relay dlci.
> Lets take 3 routers R1,R2,R3
> R3 is the HUB and R1 and R2 are spokes
> The Frame-Relay switch is configured in a full mesh configuration.
> But the task asks to configure the routers in Hub and Spoke manner.
> R1 , R2 and R3 must have ip 10.1.1.1/24 and 10.1.1.2/24 and 10.1.1.3/24
> Disable inverse-arp on R1 and R2 so that they only learn dynamic mapping to
> All config is to be done on Main interfaces.
> Now the confusion is that ... when all configs are done correctly.
> what must be the output of show frame-relay pvc command.
> i mean R1 and R2 must have learned two dlci.
> The one to R3 must be active........
> what about the other ???? the one between R1 and R2.
> What i get in Lab is some times it is unused but active and sometimes used
> active as well.
> any idea ??
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