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T3 Configuration

Okay, humor me here. I have a Cisco 7204VXR running IOS 12.3.7t with a PA-MC-T3 card installed in it. All 28 T1's are channelized. I'm getting errors on the serial interfaces on both ends of the private link and I think it might be caused by incorrect line coding however there is no way to change the line code, at least that I can see, on a channelized T1. The frame, input, and crc errors in most cases are less than 1% but I'm hoping to try and eliminate that if possible.

Any helpful hints, documentation on setting the line coding, or even a sample config of a channelized T3 setup would be helpful.

Pentrix2

please do a show controllers tx x/x/x/x brief
and do a tabular, then post the output.

what do you mean by line coding? the running config or the actual line?

mikecr

ASKER

The line coding of the interface, like B8ZS and B3ZS. By default the channelized T3 defaults to B3ZS, the remote router on the other side of the T1 is running B8ZS. Now unless my brain is not functioning properly, and it's probably not due to a lack of sleep, they are not entirely compatible. I'm thinking this line coding mismatch may be causing the errors that I'm seeing on the T1 interfaces.

IPAWan#show controller t3 1/0 brief
T3 1/0 is up. Hardware is CT3 single wide port adapter
CT3 H/W Version : 1.0.1, CT3 ROM Version : 1.1, CT3 F/W Version : 2.4.3
FREEDM version: 1, reset 0 resurrect 0
Applique type is Channelized T3
No alarms detected.
Framing is M23, Line Code is B3ZS, Clock Source is Internal
Rx-error throttling on T1's ENABLED
Rx throttle total 0, equipment customer loopback

T1 1 is up
timeslots: 1-24
FDL per AT&T 54016 spec.
No alarms detected.
Framing is ESF, Clock Source is Internal

T1 2 is up
timeslots: 1-24
FDL per AT&T 54016 spec.
No alarms detected.
Framing is ESF, Clock Source is Internal

T1 3 is down
timeslots: 1-24
FDL per AT&T 54016 spec.
Transmitter is sending LOF Indication.
Receiver is getting AIS.
Framing is ESF, Clock Source is Internal

T1 4 is up
timeslots: 1-24
FDL per AT&T 54016 spec.
No alarms detected.
Framing is ESF, Clock Source is Internal

T1 5 is up
timeslots: 1-24
FDL per AT&T 54016 spec.
No alarms detected.
Framing is ESF, Clock Source is Internal

T1 6 is up
timeslots: 1-24
FDL per AT&T 54016 spec.
No alarms detected.
Framing is ESF, Clock Source is Internal

T1 7 is up
timeslots: 1-24
FDL per AT&T 54016 spec.
No alarms detected.
Framing is ESF, Clock Source is Internal

T1 8 is up
timeslots: 1-24
FDL per AT&T 54016 spec.
No alarms detected.
Framing is ESF, Clock Source is Internal

T1 9 is up
timeslots: 1-24
FDL per AT&T 54016 spec.
No alarms detected.
Framing is ESF, Clock Source is Internal

T1 10 is up
timeslots: 1-24
FDL per AT&T 54016 spec.
No alarms detected.
Framing is ESF, Clock Source is Internal

T1 11 is up
timeslots: 1-24
FDL per AT&T 54016 spec.
No alarms detected.
Framing is ESF, Clock Source is Internal

T1 12 is up
timeslots: 1-24
FDL per AT&T 54016 spec.
No alarms detected.
Framing is ESF, Clock Source is Internal

T1 13 is up
timeslots: 1-24
FDL per AT&T 54016 spec.
No alarms detected.
Framing is ESF, Clock Source is Internal

T1 14 is up
timeslots: 1-24
FDL per AT&T 54016 spec.
No alarms detected.
Framing is ESF, Clock Source is Internal

T1 15 is up
timeslots: 1-24
FDL per AT&T 54016 spec.
No alarms detected.
Framing is ESF, Clock Source is Internal

T1 16 is up
timeslots: 1-24
FDL per AT&T 54016 spec.
No alarms detected.
Framing is ESF, Clock Source is Internal

T1 17 is up
timeslots: 1-24
FDL per AT&T 54016 spec.
No alarms detected.
Framing is ESF, Clock Source is Internal

T1 18 is up
timeslots: 1-24
FDL per AT&T 54016 spec.
No alarms detected.
Framing is ESF, Clock Source is Internal

T1 19 is up
timeslots: 1-24
FDL per AT&T 54016 spec.
No alarms detected.
Framing is ESF, Clock Source is Internal

T1 20 is up
timeslots: 1-24
FDL per AT&T 54016 spec.
No alarms detected.
Framing is ESF, Clock Source is Internal

T1 21 is up
timeslots: 1-24
FDL per AT&T 54016 spec.
No alarms detected.
Framing is ESF, Clock Source is Internal

T1 22 is up
timeslots: 1-24
FDL per AT&T 54016 spec.
No alarms detected.
Framing is ESF, Clock Source is Internal

T1 23 is up
timeslots: 1-24
FDL per AT&T 54016 spec.
No alarms detected.
Framing is ESF, Clock Source is Internal

T1 24 is down
timeslots: 1-24
FDL per AT&T 54016 spec.
Transmitter is sending LOF Indication.
Receiver is getting AIS.
Framing is ESF, Clock Source is Internal

T1 25 is down
timeslots: 1-24
FDL per AT&T 54016 spec.
Transmitter is sending LOF Indication.
Receiver is getting AIS.
Framing is ESF, Clock Source is Internal

T1 26 is up
timeslots: 1-24
FDL per AT&T 54016 spec.
No alarms detected.
Framing is ESF, Clock Source is Internal

T1 27 is up
timeslots: 1-24
FDL per AT&T 54016 spec.
No alarms detected.
Framing is ESF, Clock Source is Internal

T1 28 is up
timeslots: 1-24
FDL per AT&T 54016 spec.
No alarms detected.
Framing is ESF, Clock Source is Internal

mikebernhardt

In config mode:
controller t3 1/0
linecode b8zs

mikecr

ASKER

The "linecode" command does not show up when your configuring the T3 controller interface.

mikebernhardt

Sorry Try this:

controller t3 1/0
t1 [channel #] linecode b8zs

mikecr

ASKER

Once again, that command is not available. Keep in mind that this is a channelized T3 and I have noticed that there are some commands that are not available that I'm used to.

SOLUTION

mikebernhardt

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mikecr

ASKER

That's definately not a good thing.

mikebernhardt

I guess that card was built to talk to another channelized T3 interface...

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stealth188

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mikecr

ASKER

At this point I'm beginning to think that my configuration is completely correct and there is a problem with the line. The T3 end was left defaulted to clock source internal which is correct for our point to point setup and I have all remote routers getting their clocking from the line. I know all are built out correctly as I have been doing this for a long time however I have only ever done a couple of DS3's and needed a memory refresh. I'm just seeing to many frame, input, and crc's for my tastes. From the looks of it there is probably an ISP issue with the line or something so I'm going to turn it over to them to take a look at and see what they can come up with.

stealth188

The other neat thing about the PA-MC-T3s is that they have their own diags built in. You might try some of these test just for fun. It may give you some ammunition when it comes to dealing with momma bell. I don't know about you, but we have the hardest time getting them to take a serious look at a transport let alone admit they have a problem. :D Good luck to you.

http://www.cisco.com/en/US/customer/products/hw/modules/ps2033/products_module_installation_guide_chapter09186a008010c9d0.html#1030618

mikecr

ASKER

I'm familiar with using BERT. I think I'm going to give it a try and see what I can come up with.