You can build a tiny frame cloud with two routers, I'm doing it now until I
get my other two. (im using a 2502 with IOS 11.2 and a 2501 with IOS 12.0).
What I do is :
frame switch:
frame-relay switching
int interface
encapsulation frame-relay
ip address x.y.z.a mask
frame-relay intf-type dce
clockrate 1000000
frame-relay interface-dlci 100
I read that you don't use the interface-dlci command unless you have
multiple dlci's on one physical connection (using subinterfaces), but if I
dont do that, or a route statement, the dte router can't use inverse
arp..neither router is aware of dlci numbers.
Using this configuration, I can't ping my side of the dlci, but it doesn't
seem to break anything..
Richard Holland
CCNP,MCSE
> Well Bob, are you trying to build this with only 2 routers? I am not sure
> you can do that... Typically it looks like this:
>
>
> R1-------Frame Switch (R2)-----------R3
>
> R2 (the frame switch) provides DCE to both R1 and R3. Set the clockrate on
> one of the switch interfaces. R2 needs the following:
>
> Frame Relay Switching enabled (frame-relay switching)
> DCE set on each interface (frame-relay intf-type dce)
> Clockrate configured (clockrate 56000)
> Frame Relay Route statements to announce DLCI's to each side and connect
the
> R1 and R3 into a PVC. (frame-relay route 102 s0 201)
>
> R1 and R3 need:
>
> Frame Relay encapsulation on the serial interface that is connected to the
> switch. (encapsulation frame-relay)
>
> Optional:
>
> You may want to configure frame-relay map statments on R1 and R3 to turn
off
> Inverse-Arp. This step is optional.
>
> You may also wish to configure the Frame Relay LMI type...
>
> If you are trying to configure only half of the connection, ie one router
as
> DTE and one router as the switch, I don't think that this will work. You
may
> see LMI going back and forth (debug frame lmi), but I don't think so. You
> certianly will not see the interface stay up because the PVC is not
> complete.
>
> I have not tried to configure the switch to route right back out the same
> interface (frame-relay route 102 s0 102) to see if it will receive frames
on
> s0 and send them out on s0 too, but I don't think it is legal to do
this...
>
> You may need to get a 3rd router to make this work (if you do not alreay
> have one.)
>
> I hope this helps...
>
> Dale
> [=`)
>
>
>
> >From: "Bob" <[EMAIL PROTECTED]>
> >Reply-To: "Bob" <[EMAIL PROTECTED]>
> >To: [EMAIL PROTECTED]
> >Subject: Help with Frame Relay over DTE/DCE cable
> >Date: Mon, 22 May 2000 14:57:18 -0400
> >
> >I am trying to configure Frame Relay over a DTE/DCE cable, but even with
a
> >clock rate set on the DCE side, and frame relay switching configured on
one
> >of the routers, and the int on the switch configured as a interf-type
DCE,
> >I
> >am still always getting it to go up for a second on reload, but then it
> >drops again right away, and the line protocol goes down. can someone
please
> >help me with this?
> >
> >Thanks
> >
> >Rob
> >
> >
> >
> >
> >
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