From: Snow, Mark (Mark.Snow@xxxxxxxxxxx)
Date: Thu Aug 01 2002 - 16:46:37 GMT-3
http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=2042424023&rd=1
5 serial ports for under $150!
This is the cisco box I use at home.
-----Original Message-----
From: kym blair [mailto:kymblair@hotmail.com]
Sent: Thursday, August 01, 2002 3:30 PM
To: msnyder@ldd.net; harbir.kohli@bellnexxia.com
Cc: ccielab@groupstudy.com
Subject: RE: Frame-relay switching
Kohli,
I agree with Michael that you should buy another router that has at least 4
serial ports (i.e, 4000, 4500, 4700, 2520, 2522, etc.). However, you can
build a frame relay switch out of any two routers, for example two 2501s.
Connect the ethernet ports back-to-back. Create several loopback interfaces
on each router. Create several tunnel interfaces between the two routers
(source and destination IP addresses should be Loopback0-Loopback0,
Loopback1-Loopback1, Loopback2-Loopback2, etc).
Now configure each router as you would normally for a frame relay switch.
If on a normal router you want a DLCI-DLCI connection between S0 and S1, now
you would run it from S0-Tunnel0, and Tunnel0-S1 on the other router. Use a
different tunnel for each DLCI-DLCI connection.
I can provide configs if you need. But if you read above carefully, it
should make sense.
If you are having a hard time getting your first frame-relay switch working,
then just use one 2501 router and see if you can configure it as a
frame-relay switch with one DLCI-DLCI between S0 and S1. Once you've got it
working that way, you should be able to start over using two 2501s.
HTH, Kym
>From: "Michael Snyder" <msnyder@ldd.net>
>Reply-To: "Michael Snyder" <msnyder@ldd.net>
>To: "'Kohli, Harbir'" <harbir.kohli@bellnexxia.com>
>CC: <ccielab@groupstudy.com>
>Subject: RE: Frame-relay switching
>Date: Thu, 1 Aug 2002 09:35:52 -0500
>
>This only works in some IOS's. I never could get it work, but believe
>it does work. Have seen the configs posted before.
>
>I would recommend getting another router to do frame-relay. I got an
>AGS with all the needed cables for $300 off ebay.
>
>Or you could try your luck, get one for $100 with the needed serial
>interfaces, and go find the right cables. Make sure you understand the
>cables/interfaces before you buy one. There's nothing like trying to
>get 449 cables to go hd60. It can be a real mess if you don't check out
>the cables before you buy.
>
>Another point, even if you do get the frame tunnel to work, then you
>have used up two needed routers, that can't be used for routing in your
>labs. FR switching is just a layer two operation.
>
>Last thing, any cisco router with four serial interfaces will work.
>Might find a cheap token ring router with four serial interfaces.
>
>
>-----Original Message-----
>From: nobody@groupstudy.com [mailto:nobody@groupstudy.com] On Behalf Of
>Kohli, Harbir
>Sent: Thursday, August 01, 2002 8:16 AM
>To: 'ccielab@groupstudy.com'
>Subject: RE: Frame-relay switching
>
>Hi,
>
>I am trying to create a frame-relay cloud by using 2 routers (FRS1 and
>FRS2)
>
>
>I am not able to get frame-relay switching to work over the cloud.
>
>I have 2 routers connected one to FRS1 and another to FRS2).
>FRS1
>_____
>
>...
>frame-relay switching
>!
>interface Tunnel12
>no ip address
>tunnel source Serial0
>tunnel destination 12.12.12.2
>!
>interface Serial0
>ip address 12.12.12.1 255.255.255.0
>!
>interface Serial1
>no ip address
>encapsulation frame-relay
>frame-relay intf-type dce
>frame-relay route 104 interface Tunnel12 401
>!
>FRS2
>---------
>
>..
>frame-relay switching
>interface Serial0
>ip address 23.23.23.2 255.255.255.0
>interface Serial1
>no ip address
>encapsulation frame-relay
>clockrate 2000000
>frame-relay intf-type dce
>frame-relay route 401 interface Tunnel12 104
>
>FRS2#sh frame pvc
>
>PVC Statistics for interface Serial1 (Frame Relay DCE)
>
>DLCI = 401, DLCI USAGE = SWITCHED, PVC STATUS = INACTIVE, INTERFACE =
>Serial1
>
>What is it that I am missing?
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