2521 as small frame switch (lab)

[bgriffis]

Hey all, I have a rather basic question. Am setting up a lab for messing with, and wanted help on configuring a 2521 as a small 4 port frame switch.

I followed instructions in Cisco TCP/IP Routing Profesional Reference (man, that book has been on my desk a LONG time) and have the following:

frame-relay switching

!

interface serial 0

no ip address

encapsulation frame-relay

clockrate 1000000

frame-relay intf-type dce

frame-relay route 17 interface serial 1 18

!

interface serial 1

no ip address

encapsulation frame-relay

clockrate 1000000

frame-relay intf-type dce

frame-relay route 18 interface serial 0 17

*****

Now for the dumb part - how should I configure serial ports 2 and 3? Getting a little confused on the frame-relay route statements (I guess I should draw it out).

Any help would be appreciated.

[cdusio]

You would configure them the same way assuming you are hanging some other routers out there.

What you have above is a setup where you can hang a router off of serial 0 and serial 1 and route traffic between them so assuming you are planning on doing the same on serial 2 and 3, configure them similarly.