help with frame relay switch using "wic1 dsu t1" c

BCinOhio

I'm attempting to setup a lab for my CCNA/CCNP studies. I have a 3640 router with 4- "WIC1 DSU T1" cards and 4- 1721/1720 routers with the 1 WIC DSU T1 card in each router. I would like to setup the 3640 as my frame relay switch.

My question: Is this possible using these cards with T1 crossover cables?
Are there different commands I need to use for clocking?

I searched around and everthing I've found references using the 60 pin type serial cards with the "back to back 60 pin cables" but no references using WIC1 DSU T1 cards.

Thanks in advance for any help.

BC

mikej412

BCinOhio wrote:

My question: Is this possible using these cards with T1 crossover cables?
Are there different commands I need to use for clocking?

Yes. 1<-->4 and 2<-->5 and 4<-->1 and 5<-->2 (I think)

Yes -- without powering up... I think the default clocking is line, so you'd want one side configured with
service-module t1 clock source internal