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

ZychoFlow · ‎11-19-2012

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

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,

John Blakley · ‎12-05-2012

I found this document that may be able to help:

http://www.cisco.com/en/US/docs/internetworking/troubleshooting/guide/tr1918.html#wp1020680

HTH,
John

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

View solution in original post

John Blakley · ‎11-19-2012

It's been many years since I've worked on one of these, so here goes. The reason that your configs don't show up is more than likely because they're at default. Do you know what your encapsulation is supposed to be set up as? By default, HDLC is chosen. If you're needing ppp, this would explain the "up/down" status that you're seeing.

What's on the other side of this link? Is it a provider or another router that you have control over?

HTH,

John

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

ZychoFlow · ‎11-19-2012

Hi Blakley, thanks for your help.

This router is connecting to an ISP. No I tried configuring encapsulation as PPP, but no success.

Now the ISP didn't provide any details about encapsulation, framing, line code, etc. They just provided

us the assigned ip and the gateway ip.

John Blakley · ‎11-19-2012

You should contact them to see what the specifics are. You'll know what to do after you get this information, and it would help us further.

Can you find that information out?

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

ZychoFlow · ‎11-20-2012

Hi Blakley,

I was just contacted by the guys at the ISP, and the encapsulation type was a FrameRelay,

so I'm guessing that I was not even close in My configuration.

It's been a while since I've setup a T1, and a friend of mine has setup multiple T1 with several

ISP here, and most of them have all been PPP, so I guess I assumed that frame relay was

not being used much lately, but I guess I was wrong.

Anyway I'll finish the configuration and post back my results.

Thank you,

ZychoFlow · ‎12-05-2012

Hi,

I'm attempting to configure the frame-relay t1, but I'm stuck at interface up, line prot down.

Now I've applied the following configuration:

interface Serial0/0

ip address 255.255.255.252

encapsulation frame-relay

service-module t1 timeslots 1-24

frame-relay interface-dlci 100

sh service-module s0/0:

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 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,

Total Data (last 1 15 minute intervals):

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

Data in current interval (138 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

ISP provided data:

IP address
Gateway address
Encapsulation Frame Relay
DLCI 100
BZ8 ESF
Time Slot (1 al 24).

Which is basically what the ISP provided, but as it appears I must be missing something.

Any ideas?

Thank you,

John Blakley · ‎12-05-2012

Try this configuration:

interface Serial0/0

encapsulation frame-relay

int s0/0.100 point-to-point

ip address 255.255.255.252

service-module t1 timeslots 1-24

frame-relay interface-dlci 100

HTH,
John

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

ZychoFlow · ‎12-05-2012

Hi, Blakley, thank you for your help again.

I tried exactly what you said with one exception; which is that the IOS didn't like me specifiying the timeslots in the sub interface, so I moved it over to the interface.

Configuration:

!

interface Serial0/0

no ip address

encapsulation frame-relay

service-module t1 timeslots 1-24

!

interface Serial0/0.100 point-to-point

ip address 255.255.255.252

frame-relay interface-dlci 100

!

I bouced the interface, but the end result was int up, line prot down.

John Blakley · ‎12-05-2012

Let's try this:

Post "show frame-relay lmi" and "debug frame-relay lmi" results..

HTH,
John

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

ZychoFlow · ‎12-05-2012

The show frame-relay lmi returned the following:

LMI Statistics for interface Serial0/0 (Frame Relay DTE) LMI TYPE = CISCO

Invalid Unnumbered info 0 Invalid Prot Disc 0

Invalid dummy Call Ref 0 Invalid Msg Type 0

Invalid Status Message 0 Invalid Lock Shift 0

Invalid Information ID 0 Invalid Report IE Len 0

Invalid Report Request 0 Invalid Keep IE Len 0

Num Status Enq. Sent 17 Num Status msgs Rcvd 0

Num Update Status Rcvd 0 Num Status Timeouts 16

Last Full Status Req 00:00:03 Last Full Status Rcvd never

FYI I have just reloaded the router because I was doing some hardware loopback tests.

As a result of the debug the router printed out the following:

Aug 4 18:23:51.317: Serial0/0(out): StEnq, myseq 1, yourseen 0, DTE down

Aug 4 18:23:51.317: datagramstart = 0x7192514, datagramsize = 13

Aug 4 18:23:51.317: FR encap = 0xFCF10309

Aug 4 18:23:51.317: 00 75 01 01 00 03 02 01 00

Aug 4 18:23:51.317:

Aug 4 18:23:52.319: %LINEPROTO-5-UPDOWN: Line protocol on Interface Serial0/0,

changed state to down

Aug 4 18:24:01.317: Serial0/0(out): StEnq, myseq 1, yourseen 0, DTE down

Aug 4 18:24:01.317: datagramstart = 0x7193414, datagramsize = 14

Aug 4 18:24:01.317: FR encap = 0x00010308

Aug 4 18:24:01.317: 00 75 95 01 01 00 03 02 01 00

Aug 4 18:24:01.317:

Aug 4 18:24:01.317: Serial0/0(out): StEnq, myseq 1, yourseen 0, DTE down

Aug 4 18:24:01.317: datagramstart = 0x7193554, datagramsize = 13

Aug 4 18:24:01.317: FR encap = 0x00010308

Aug 4 18:24:01.317: 00 75 51 01 00 53 02 01 00

Aug 4 18:24:01.317:

Aug 4 18:24:01.317: Serial0/0(out): StEnq, myseq 1, yourseen 0, DTE down

Aug 4 18:24:01.317: datagramstart = 0x7192154, datagramsize = 13

Aug 4 18:24:01.317: FR encap = 0xFCF10309

Aug 4 18:24:01.317: 00 75 01 01 00 03 02 01 00

Aug 4 18:24:01.321:

Aug 4 18:24:01.321: Serial0/0(out): StEnq, myseq 2, yourseen 0, DTE down

Aug 4 18:24:01.321: datagramstart = 0x7000214, datagramsize = 13

Aug 4 18:24:01.321: FR encap = 0xFCF10309

Aug 4 18:24:01.321: 00 75 01 01 00 03 02 02 00

Aug 4 18:24:01.321:

Aug 4 18:24:11.318: Serial0/0(out): StEnq, myseq 3, yourseen 0, DTE down

Aug 4 18:24:11.318: datagramstart = 0x7001114, datagramsize = 13

Aug 4 18:24:11.318: FR encap = 0xFCF10309

Aug 4 18:24:11.318: 00 75 01 01 00 03 02 03 00

Aug 4 18:24:11.318:

Aug 4 18:24:21.318: Serial0/0(out): StEnq, myseq 4, yourseen 0, DTE down

Aug 4 18:24:21.318: datagramstart = 0x7001ED4, datagramsize = 13

Aug 4 18:24:21.318: FR encap = 0xFCF10309

Aug 4 18:24:21.318: 00 75 01 01 00 03 02 04 00

Aug 4 18:24:21.318:

Aug 4 18:24:31.319: Serial0/0(out): StEnq, myseq 5, yourseen 0, DTE down

Aug 4 18:24:31.319: datagramstart = 0x7192654, datagramsize = 13

Aug 4 18:24:31.319: FR encap = 0xFCF10309

Aug 4 18:24:31.319: 00 75 01 01 00 03 02 05 00

Aug 4 18:24:31.319:

Aug 4 18:24:41.319: Serial0/0(out): StEnq, myseq 6, yourseen 0, DTE down

Aug 4 18:24:41.319: datagramstart = 0x7193554, datagramsize = 13

Aug 4 18:24:41.319: FR encap = 0xFCF10309

Aug 4 18:24:41.319: 00 75 01 01 00 03 02 06 00

Aug 4 18:24:41.319:

Aug 4 18:24:51.319: Serial0/0(out): StEnq, myseq 7, yourseen 0, DTE down

Aug 4 18:24:51.319: datagramstart = 0x7000E94, datagramsize = 13

Aug 4 18:24:51.319: FR encap = 0xFCF10309

Aug 4 18:24:51.319: 00 75 01 01 00 03 02 07 00

Aug 4 18:24:51.319:

Aug 4 18:25:01.320: Serial0/0(out): StEnq, myseq 1, yourseen 0, DTE down

Aug 4 18:25:01.320: datagramstart = 0x7001D94, datagramsize = 14

Aug 4 18:25:01.320: FR encap = 0x00010308

Aug 4 18:25:01.320: 00 75 95 01 01 00 03 02 01 00

Aug 4 18:25:01.320:

Aug 4 18:25:01.320: Serial0/0(out): StEnq, myseq 1, yourseen 0, DTE down

Aug 4 18:25:01.320: datagramstart = 0x70000D4, datagramsize = 13

Aug 4 18:25:01.320: FR encap = 0x00010308

Aug 4 18:25:01.320: 00 75 51 01 00 53 02 01 00

Aug 4 18:25:01.320:

Aug 4 18:25:01.320: Serial0/0(out): StEnq, myseq 1, yourseen 0, DTE down

Aug 4 18:25:01.320: datagramstart = 0x7001ED4, datagramsize = 13

Aug 4 18:25:01.320: FR encap = 0xFCF10309

Aug 4 18:25:01.320: 00 75 01 01 00 03 02 01 00

Aug 4 18:25:01.324:

Aug 4 18:25:01.324: Serial0/0(out): StEnq, myseq 2, yourseen 0, DTE down

Aug 4 18:25:01.324: datagramstart = 0x7191754, datagramsize = 13

Aug 4 18:25:01.324: FR encap = 0xFCF10309

Aug 4 18:25:01.324: 00 75 01 01 00 03 02 02 00

Aug 4 18:25:01.324:

Aug 4 18:25:11.320: Serial0/0(out): StEnq, myseq 3, yourseen 0, DTE down

Aug 4 18:25:11.320: datagramstart = 0x7192794, datagramsize = 13

Aug 4 18:25:11.320: FR encap = 0xFCF10309

Aug 4 18:25:11.320: 00 75 01 01 00 03 02 03 00

Aug 4 18:25:11.320:

Aug 4 18:25:21.321: Serial0/0(out): StEnq, myseq 4, yourseen 0, DTE down

Aug 4 18:25:21.321: datagramstart = 0x7192154, datagramsize = 13

Aug 4 18:25:21.321: FR encap = 0xFCF10309

Aug 4 18:25:21.321: 00 75 01 01 00 03 02 04 00

Aug 4 18:25:21.321:

Aug 4 18:25:31.321: Serial0/0(out): StEnq, myseq 5, yourseen 0, DTE down

Aug 4 18:25:31.321: datagramstart = 0x7000FD4, datagramsize = 13

Aug 4 18:25:31.321: FR encap = 0xFCF10309

Aug 4 18:25:31.321: 00 75 01 01 00 03 02 05 00

Aug 4 18:25:31.321:

Aug 4 18:25:41.321: Serial0/0(out): StEnq, myseq 6, yourseen 0, DTE down

Aug 4 18:25:41.321: datagramstart = 0x70000D4, datagramsize = 13

Aug 4 18:25:41.321: FR encap = 0xFCF10309

Aug 4 18:25:41.321: 00 75 01 01 00 03 02 06 00

Aug 4 18:25:41.321:

Aug 4 18:25:51.322: Serial0/0(out): StEnq, myseq 7, yourseen 0, DTE down

Aug 4 18:25:51.322: datagramstart = 0x7192514, datagramsize = 13

Aug 4 18:25:51.322: FR encap = 0xFCF10309

Aug 4 18:25:51.322: 00 75 01 01 00 03 02 07 00

Aug 4 18:25:51.322:

Aug 4 18:26:01.330: Serial0/0(out): StEnq, myseq 1, yourseen 0, DTE down

Aug 4 18:26:01.330: datagramstart = 0x7193414, datagramsize = 14

Aug 4 18:26:01.330: FR encap = 0x00010308

Aug 4 18:26:01.330: 00 75 95 01 01 00 03 02 01 00

Aug 4 18:26:01.330:

Aug 4 18:26:01.330: Serial0/0(out): StEnq, myseq 1, yourseen 0, DTE down

Aug 4 18:26:01.330: datagramstart = 0x7193554, datagramsize = 13

Aug 4 18:26:01.330: FR encap = 0x00010308

Aug 4 18:26:01.330: 00 75 51 01 00 53 02 01 00

Aug 4 18:26:01.330:

Aug 4 18:26:01.330: Serial0/0(out): StEnq, myseq 1, yourseen 0, DTE down

Aug 4 18:26:01.330: datagramstart = 0x7192154, datagramsize = 13

Aug 4 18:26:01.330: FR encap = 0xFCF10309

Aug 4 18:26:01.334: 00 75 01 01 00 03 02 01 00

Aug 4 18:26:01.334:

Aug 4 18:26:01.334: Serial0/0(out): StEnq, myseq 2, yourseen 0, DTE down

Aug 4 18:26:01.334: datagramstart = 0x7000214, datagramsize = 13

Aug 4 18:26:01.334: FR encap = 0xFCF10309

Aug 4 18:26:01.334: 00 75 01 01 00 03 02 02 00

Aug 4 18:26:01.334:

John Blakley · ‎12-05-2012

Try changing the lmi type to ansi and see if it will come up. You may want to put your original config back in, so copy paste this in:

no int s0/0.100

interface Serial0/0

encapsulation frame-relay

ip address 255.255.255.252

frame-relay interface-dlci 100

service-module t1 timeslots 1-24

frame-relay lmi-type ansi

HTH,
John

*** Please rate all useful posts ***

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

ZychoFlow · ‎12-05-2012

Hi I applied the changes as suggested. See debug output below:

Router#sh frame-relay lmi

Aug 4 19:15:37.589: Serial0/0(out): StEnq, myseq 5, yourseen 0, DTE down

Aug 4 19:15:37.589: datagramstart = 0x7193414, datagramsize = 14

Aug 4 19:15:37.589: FR encap = 0x00010308

Aug 4 19:15:37.589: 00 75 95 01 01 00 03 02 05 00

Aug 4 19:15:37.589:

LMI Statistics for interface Serial0/0 (Frame Relay DTE) LMI TYPE = ANSI

Invalid Unnumbered info 0 Invalid Prot Disc 0

Invalid dummy Call Ref 0 Invalid Msg Type 0

Invalid Status Message 0 Invalid Lock Shift 0

Invalid Information ID 0 Invalid Report IE Len 0

Invalid Report Request 0 Invalid Keep IE Len 0

Num Status Enq. Sent 21 Num Status msgs Rcvd 0

Num Update Status Rcvd 0 Num Status Timeouts 20

Last Full Status Req 00:00:01 Last Full Status Rcvd never

ug 4 19:15:47.589: Serial0/0(out): StEnq, myseq 6, yourseen 0, DTE down

Aug 4 19:15:47.589: datagramstart = 0x7000D54, datagramsize = 14

Aug 4 19:15:47.589: FR encap = 0x00010308

Aug 4 19:15:47.589: 00 75 95 01 01 00 03 02 06 00

John Blakley · ‎12-05-2012

Can you post the running config? Generally, the problem with up/down is either the incorrect encapsulation or a problem with the configuration between you and the isp. LMI type mismatch is one cause of this.

HTH,
John

*** Please rate all useful posts ***

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

John Blakley · ‎12-05-2012

I found this document that may be able to help:

http://www.cisco.com/en/US/docs/internetworking/troubleshooting/guide/tr1918.html#wp1020680

HTH,
John

*** Please rate all useful posts ***

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

ZychoFlow · ‎12-05-2012

Here you go:

!

! Last configuration change at 19:34:03 UTC Sat Aug 4 2012

!

version 12.2

service timestamps debug datetime msec

service timestamps log datetime msec

no service password-encryption

!

hostname Router

!

logging queue-limit 100

!

tdm clock T1 1/0 both export line

voice-card 1

!

voice-card 3

!

ip subnet-zero

!

no voice hpi capture buffer

no voice hpi capture destination

!

controller T1 1/0

framing esf

linecode b8zs

!

interface FastEthernet0/0

no ip address

shutdown

speed auto

!

interface Serial0/0

ip address 255.255.255.252

encapsulation frame-relay

service-module t1 timeslots 1-24

frame-relay interface-dlci 100

!

ip classless

ip route 0.0.0.0 0.0.0.0

no ip http server

!

voice-port 3/0

!

voice-port 3/1

!

mgcp profile default

!

voice-port 3/0

!

voice-port 3/1

!

mgcp profile default

!

dial-peer cor custom

!

line con 0

line aux 0

line vty 0 4

login

!

no scheduler allocate

!

end