From: kym blair (kymblair@xxxxxxxxxxx)
Date: Tue Dec 18 2001 - 01:35:32 GMT-3
Michael,
I use a 2520 for my frame switch; S0 and S1 are standard serial and S2 and
S3 are asynch. I connect all four to standard serial ports on routers and
set my clock rate at 56K or 64K; never a problem. Sometimes I run the DTE
on the frame switch and put the DCE on the router; still no problem.
OT: One guy described on groupstudy a few months ago how to connect two 2501
routers via their eithernet port and turn the pair into a frame relay switch
with four serial interfaces using tunnels across the ethernet link. I
tested his design and it worked great.
If you continue to have a problem, I'd recommend write erase and reprogram
your frame switch.
Kym
>From: "Michael Popovich" <m.popovich@home.com>
>Reply-To: "Michael Popovich" <m.popovich@home.com>
>To: "CCIE GROUPSTUDY" <ccielab@groupstudy.com>
>Subject: 2523 Question
>Date: Mon, 17 Dec 2001 22:15:43 -0600
>
>On the 2523 or 2522 does anyone know which 2 ports are the High Speed
>Async? I
>think they are S0 and S1. If so has anyone every had problems doing
>frame-relay switching between a high speed and low speed interface? For
>example between serial 0 and serial 2 with clockrates set at 64000.
>
>I was having an issue tonight in which I was doing frame-switching between
>those exact two interfaces at 64000 bits. I could not get Serial 0 to come
>up.
>LMI kept timing out. I have never had any problems before with this port
>and
>have used in not doing frame-switching. I replaced cables and that didn't
>help. I finally just put the DCE cable into Serial 3 and everything works
>fine.
>
>Any thoughts?? Using 11.0(10.3) IOS.
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