I have 2 Cisco 3825 routers with VWIC 2MFT-T1 cards along with VWIC 1MFT-T1 in NM-HDV slots in a test lab.
Is there any way I can simulate/emulate a T1 environment between each router? I'm trying to learn how to setup DS-1 connections, bundle t1's etc.
I also have 2 Cisco 2503 with BRI ports if I can do anything with them...
you can test T1 as data links:
one side needs to provide the clock.
This configuration should be done under controller T1
clock source internal instead of clock source line
You need also to cross-connect the cabling so that TX on one side is connected to RX on the other side and viceversa.
For doing this you can :
- use external adapters called balun they are thought to convert from RJ48 to two coaxial cables: you use a straight lan cable from the port to first balun : you then need two coaxial cables and you cross-connect TX to RX (balun coaxial are labeled)
balun info I mean the one with two coaxial cables output
- or you can build a special cross-over cable different from an ethernet cable that does the job (and it is good only for back-to-back connections)
table 88 crossover RJ-48 cable
about BRIs : without a device acting as an ISDN switch they are useless you cannot connect them back to back
Hope to help