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Can't configure a data T1 on a Cisco 1760 router

ZychoFlow
Level 1
Level 1

Hi,

For the past few days I've been attempting to configure a data T1 on a Cisco 1760, but I'm stuck at:

Serial0/0                  <our ip address>    YES NVRAM  up                    down

To provide a bit of background. This router used to be configured with a T1 via Frame-Relay; which worked

fine. Now we recently change offices and providers, and the provider did not offer any information as to which

encapsulation type to use, and if Frame-Relay which DLCI to use, etc.

Now I've been trying to setup the T1 connection and testing various settings such as encapsulation HDLC

and PPP, but no luck. I also played around with the line codes and framing; which resulted in the following

framing sf int down, line prot down, framing esf int up, line prot down. Regardless no luck.

Now I've been following several guides and examples mainly the following:

http://www.cisco.com/en/US/docs/ios/12_2/12_2z/12_2zl/feature/guide/t1dsu.html#wp1032260

In this guide they make mention of a WIC-1DSU-T1-V2, but as you can see in the show diag snippet at the

bottom; we have a WIC-1DSU-T1 version 1.5. I dont' know if this poses a problem for us.

Throughout the entire process I've seen a few irregularities for example:

1. Router(config-if)#service-module t1 cablelength short 110ft

                                          ^

% Invalid input detected at '^' marker.

The IOS doesn't recognize any command with service module t1 ca , and the only recognized command with

C is clock.

2. If I enter the following list of commands under the serial interface:

!

interface Serial0/0

ip address 10.0.0.51 255.0.0.0

service-module t1 framing esf

service-module t1 linecode b8zs

service-module t1 timeslots 1-12 speed 64

service-module t1 data-coding normal

service-module t1 cablelength short 110ft

service-module t1 remote-loopback full

service-module t1 clock source line

!

And I do a sh run all I get is the following:

!

interface Serial0/0

ip address 10.0.0.51 255.0.0.0

load-interval 30

!

Although i can do a show service-module s0/0 I can see all of the configured parameters (see below)

Module type is T1/fractional

    Hardware revision is 0.128, Software revision is 0.2,

    Image checksum is 0x73D70058, Protocol revision is 0.1

Receiver has no alarms.

Framing is ESF, Line Code is B8ZS, Current clock source is line,

Fraction has 24 timeslots (64 Kbits/sec each), Net bandwidth is 1536 Kbits/sec.

Last module self-test (done at startup): Passed

Last clearing of alarm counters 01:23:46

    loss of signal        :    0,

    loss of frame         :    0,

    AIS alarm             :    0,

    Remote alarm          :    3, last occurred 00:05:40

    Module access errors  :    0,

Total Data (last 5 15 minute intervals):

    0 Line Code Violations, 0 Path Code Violations

    28 Slip Secs, 0 Fr Loss Secs, 0 Line Err Secs, 0 Degraded Mins

    28 Errored Secs, 0 Bursty Err Secs, 0 Severely Err Secs, 0 Unavail Secs

Data in current interval (521 seconds elapsed):

    0 Line Code Violations, 0 Path Code Violations

    0 Slip Secs, 0 Fr Loss Secs, 0 Line Err Secs, 0 Degraded Mins

    0 Errored Secs, 0 Bursty Err Secs, 0 Severely Err Secs, 0 Unavail Secs

The following is some extra information on our setup.

show version:

Cisco Internetwork Operating System Software

IOS (tm) C1700 Software (C1700-SV8Y-M), Version 12.2(15)ZL, EARLY DEPLOYMENT REL

EASE SOFTWARE (fc1)

Synched to version 12.3(0.1)

TAC Support: http://www.cisco.com/tac

Copyright (c) 1986-2003 by cisco Systems, Inc.

Compiled Fri 13-Jun-03 10:32 by ealyon

Image text-base: 0x80008120, data-base: 0x81571A5C

ROM: System Bootstrap, Version 12.2(7r)XM2, RELEASE SOFTWARE (fc1)

ROM: C1700 Software (C1700-SV8Y-M), Version 12.2(15)ZL, EARLY DEPLOYMENT RELEASE

SOFTWARE (fc1) ...

show diag (t1 card):

WIC/VIC Slot 0:

        FT1 8360

        Hardware revision 1.5   Board revision G0

        Serial number     0030504078    Part number    800-03279-04

        FRU Part Number   WIC-1DSU-T1=

I'm a little bit rusty on my Cisco configs, so if you see anything unconventional or out of the ordinary please

don't hesitate to point it out.

Thank you,

19 Replies 19

Can you take a look at your controller again and see if the remote alarms are incrementing?

Last clearing of alarm counters 00:17:17

    loss of signal        :    0,

    loss of frame         :    0,

    AIS alarm             :    0,

    Remote alarm          :    2, last occurred 00:10:10

    Module access errors  :    0,

If so, you may still want to contact the provider and let them know you're experiencing a problem and have them test the circuit.

From what you've shown with "show service-module", it looks as though you have everything configured correctly. The only thing that I can do to get this to fail in a lab is to change the lmi type to not match the provider and then I get up/down.

HTH,
John

*** Please rate all useful posts ***

HTH, John *** Please rate all useful posts ***

I have only worked with frame relay in labs, but what side (cu or isp) is responsible for setting the clock rate and frame-relay intf-type? 

Generally the ISP sends clocking and sets the intf-type on their frame switch. The intf-type in this case would be DCE on the switch side and the clock rate is set on the switch side. When you have back to back routers, one side is set to provide clocking on line and the other is usually set for internal...

http://www.cisco.com/en/US/docs/routers/access/1700/1701/software/configuration/guide/frmrelay.html#wp1022372

HTH,
John

*** Please rate all useful posts ***

HTH, John *** Please rate all useful posts ***

Hi Blakley,

After talking to ISP they verified the circuit on their end, and they found a number that appeared to have been "misstyped" as they said.

They probably gave us the wrong DLCI. Which is discussed in the document that you gave me.

We are now up and running.

Thank you for all your help.

That's good news!

HTH,
John

*** Please rate all useful posts ***

HTH, John *** Please rate all useful posts ***
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