For data over T-1, you should use ESF/B8ZS, not SF/AMI. Assuming this is a clear
channel T-1, the datalink protocol is up to you. If you have Cisco routers on each
side, either HDLC or PPP would be good choices. If any of the routers are not Cisco,
use PPP.
Have you configured your serial controller correctly, making sure it is using the
correct timeslots?
Perhaps you should post the relevant portions of your config so we can troubleshoot
further.
Regards,
John
>
> I have an old csu/dsu (rad fcd 1 ) conected to a 7500 router. we use this
> T1 to enable two of our sites to communicate point to point (all is working
> at the moment). However I am trying to implement that same connection with a
> 2610 with a built in csu/dsu. Originally I configure the Controller on the
> 2610 to use ESF framing , B8ZS and PPP encapsulation. This router was in
> operation before , being used as an Internet router
> so I know the HW is good. Hower when i connected the 2610 with the new
> config (wiped out old onfig when used for internet) to the TI (provided by
> PAC BELL) being use on the 7500 I got some weird results.
> serial x (reset) , line prot down
>
> Then I changed the encapsultion to HDLC ,that got rid of the reset , and
> changed the framing to SF . When I changed to framing , i got se up, line
> prot up , then few seconds later i did a sh int and saw the up , down.
> I tested my controller to make sure HW is ok by connecting it to one of the
> T1'S providing internet access. It worked fine , off course I had to change
> to esf, b8zs and ppp.
>
> Is it the telco who prvides us what we should use as framing, linecode and
> encapsulation? or does it depend on the csu/dsu being used. ???
>
>
>
> Mo Durrani
> IS&T
> WYSE\EDS
> phone:408-473 1246
> [EMAIL PROTECTED]
> [EMAIL PROTECTED]
>
>
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