Configuring a 2521 as a 4 port frame switch

[bgriffis]

I am setting up a lab for testing and playing with. In it I have a 2521 with 4 serial ports. 2 2524s with 2 serial ports each. A 2501 and a 2509.

I am able to configure and bring up point-to-point links wiht no problem, but wanted to try to do a fully meshed 4 port frame-relay switch.

I was able to do frame between the 2521 and one of the routers, but am running into trouble trying to get all 4 remote routers (2524-1, 2524-2, 2501, 2509) talking to each other over an emulated frame-relay network using the 4 serial ports on the 2521.

Anyone have a sample configuration from a fully meshed 4 port frame network using a 2521 (or similar) as the switch?

[thisisshanky · Accepted solution]

frame-relay switching

int s0

frame-relay intf-type dce

clock rate 56000

frame-relay route 102 int s1 201

frame-relay route 103 int s2 301

framr-relay route 104 int s3 401

int s1

frame-relay intf-type dce

clock rate 56000

frame-relay route 201 int s0 102

frame-relay route 203 int s2 302

frame-relay route 204 int s3 402

int s2

frame-relay intf-type dce

clock rate 56000

frame-relay route 301 int s0 103

frame-relay route 302 int s1 203

frame-relay route 304 int s3 403

int s3

frame-relay intf-type dce

clock rate 56000

frame-relay route 401 int s0 104

frame-relay route 402 int s1 204

frame-relay route 403 int s2 304

Easy way to do this is,

a. understand the syntax of the frame-relay route configuration.

b. chart out the different PVCs for the full mesh. (A picture is worth a 1000 words)

c. Number of pvc's with N sites - N(N-1)/2 = 4*3/2 = 6 PVCs to interconnect all sites in a full mesh.

HTH

[bgriffis]

Thanks! That is a thing of beauty! I configured the 2521 as above, and have a great start. I'll bring up a few of the remtoe routers and configure their frame connections next. I'll let the routers discover the frame cloud first, then manually configure.