I am trying to set up a lab using two Cisco 2500 routers and two Astrocom SP100 CSUs. Can I simply use a cross-over cable between the CSU's and set internal timing to get them to communicate with each other? I've tried doing it this way but the serial line is up and protocol is down. I am using encapsulation of HDLC.
Tek-Tips is the largest IT community on the Internet today!
Members share and learn making Tek-Tips Forums the best source of peer-reviewed technical information on the Internet!
-
Congratulations SkipVought on being selected by the Tek-Tips community for having the most helpful posts in the forums last week. Way to Go!
Setting Up A Lab Question 1
- Thread starter BudT
- Start date
-
1
- #2
CCIEcandidate
MIS
You can use a crossover cable between the two CSU's. The pinout for T-1 is 1,2,4 and 5. 1 should go to 4 and 2 should go to 5. As far as timing for the T-1, make sure one is providing clocking and the other is clocking from the line. I used to do this before I got my DTE/DCE cables for my lab.
It doesn't matter what encapsulation you use on the routers as long it matches on both routers.
HTH,
Nick
It doesn't matter what encapsulation you use on the routers as long it matches on both routers.
HTH,
Nick
- Status
