RE: Encapsualtion Frame-relay

From: Kemal Yildirim \(Netron\) (Kemal.Yildirim@netron.com.tr)
Date: Sat Mar 11 2006 - 19:34:41 GMT-3


Hi Victor,
You have two separate data links ( two frame relay circuits via FR SW).
It is very normal that you have different LMI/encapsulation types on
both links.
If you connect these routers back to back you would normally one
LMI/encapsulation type, but for this instance, we have FR SW in the
midle to convert and switch these circuits for us.
Regards,
Kemal

-----Original Message-----
From: nobody@groupstudy.com [mailto:nobody@groupstudy.com] On Behalf Of
Victor Cappuccio
Sent: Saturday, March 11, 2006 11:28 PM
To: CCIE LAB
Subject: Encapsualtion Frame-relay

Hello people..

Please, I wish to understand the frame-relay encapsulation command
parameters.
I know that this could affect me in Layer 2 Framming, Compression, LFI
in QoS, etc..

In doing IETF mode we move from the default Cisco frame-relay
configuration, if the remote end is a non cisco device,

But, why in this configuration the PVC is up?

R1 ---- (FR SW) ---- R5

Rack1R5#show run interface serial 0/0
Building configuration...

Current configuration : 81 bytes
!
interface Serial0/0
 no ip address
 encapsulation frame-relay
 cdp enable
end

Rack1R1#show run interface serial 0/0
Building configuration...

Current configuration : 74 bytes
!
interface Serial0/0
 no ip address
 encapsulation frame-relay IETF
end

As you can see
Rack1R1#fr pvc | in ACTIVE
DLCI = 105, DLCI USAGE = LOCAL, PVC STATUS = ACTIVE, INTERFACE =
Serial0/0

The DLCI to R5 is UP, and you can see that the encap in R5 is a Cisco
Encapsualation
Is there any link or any debug command that could help me understand a
little bit better this?

Thanks
Victor.



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