From: Pierre-Alex GUANEL (paguanel@gmail.com)
Date: Tue Mar 25 2008 - 18:44:44 ART
Hi ccietester55
You need to configure the frame-relay switch for multilink frame-relay as
well.
Example:
R1 = = = =Frame-relay ------R3
R1 is connected to the frame-relay switch with a "bundle" (ser 3/3 and 4/3
on the frame-relay switch)
R3 is connected only once (ser 3/0 on the frame-relay switch)
! Frame-relay Switch
int ser3/0
no ip address
encaps frame-relay
frame-relay dce
!
interface mfr0
no ip address
frame-relay intf-type dce
int ser 3/3
no ip addr
encaps frame-relay mfr0
int ser 4/3
no ip addr
encaps frame-relay mfr0
connect mfr mfr0 103 ser 3/0 301
HTH,
Pierre-Alex
----- Original Message -----
From: "ccietester55 ccietester55" <ccietester55@gmail.com>
To: <ccielab@groupstudy.com>
Sent: Tuesday, March 25, 2008 3:25 AM
Subject: Multilink frame relay
> I've been having a lot of trouble getting multilink frame relay to
> work. I've set my test lab up as follows
> R2 ---DLCI 205--- Frame Switch ---DLCI 502--- R5
>
> In order to make sure I have the frame switch and DLCIs configured
> correctly I first configure simple frame relay as follows:
>
> R2:
> interface Serial0/1
> ip address 10.1.1.2 255.255.255.0
> encapsulation frame-relay
> frame-relay interface-dlci 205
>
> R5:
> interface Serial0/1
> ip address 10.1.1.5 255.255.255.0
> encapsulation frame-relay
> frame-relay interface-dlci 502
>
>
> This works fine. R2 can ping R5 and vice versa. So now I convert the
> configuration to use multilink frame relay:
>
> R2:
> interface MFR1
> ip address 10.1.1.2 255.255.255.0
> frame-relay interface-dlci 205
> !
> interface Serial0/1
> no ip address
> encapsulation frame-relay MFR1
>
> R5:
> interface MFR1
> ip address 10.1.1.5 255.255.255.0
> frame-relay interface-dlci 502
> !
> interface Serial0/1
> no ip address
> encapsulation frame-relay MFR1
>
> As soon as I type in "encapsulation frame-relay MFR1" on the physical
> interface on each router the interface goes down and does not come
> back up:
> R2#sh int se0/1
> Serial0/1 is up, line protocol is down
>
> Just as an extra test I removed the frame relay switch from the middle
> and connected the two routers via dual back-to-back serial cables. I
> can get frame relay multilink working without a problem over the
> back-to-back cables.
>
> Has anybody been able to get multilink frame relay working over a frame
> switch?
>
>
>
> TIA,
>
> Ash.
>
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