04-11-2003 07:19 AM - edited 03-02-2019 06:35 AM
Hello,
I am configuring an internal CSU\DSU T1 WIC for the first time on a 2600, as I am used to configuring Serial int for external CSU\DSU. Are there any other configurations needed for this hardware to connect to home office using Frame-Relay. Any help is appreciated.
04-11-2003 09:33 AM
Before configuring layer 2 (frame relay) and layer 3 on the interface, you will need to configure the layer 1(T1) characteristics. These must be set up to match the T1 delivered by your carrier:
service-module t1 framing (esf|sf)
service-module t1 linecode (b8zs|ami)
service-module t1 timeslots (enter the number of timeslots, if you are getting fractional T1 service from your carrier)
These commands will all be entered in the interface config mode for your serial interface. After this, set up frame relay and your layer 3 configuration just as you are used to doing on "normal" serial interfaces.
HTH
Mark
09-27-2012 06:05 AM
Transitioning from 3825 to 3945 (OS is 15.0(1r)M13 c3900-universalk9-mz.SPA.151-4.m4). Turning on FDL on the 3825 was easy but the same command on the 3945 doesn't work. Any ideas?
04-11-2003 10:03 AM
service-module t1 fdl both
This allows for the Lec to loop your CSU
04-11-2003 08:33 PM
Here is the link which talks about configuring T1line with CSU/DSU integrated
WIC-1DSU-T1
http://www.cisco.com/warp/public/107/hw_1t_wic.shtml
Also
09-27-2012 06:06 AM
Serial Interface Troubleshooting:
Facility Data Link (FDL) is a 4-kbps channel provided by the Extended Superframe (ESF) T1 framing format. The FDL performs outside the payload capacity and allows a service provider to check error statistics on terminating equipment without intrusion. There are two ‘troubleshooting’ protocols for the FDL format; ATT and ANSI.
ATT Troubleshooting on T1 for Costco can use either ANSI or ATT, but prefer ATT protocol. To insure that no matter which protocol that they use, it is best to set the outside payload capacity troubleshooting for both ANSI and ATT. Enabling this on the serial interface doesn’t compromise the bandwidth since this is a channel that is set aside for this purpose and if a protocol is not enabled then the bandwidth carved out is just not used at all.
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