Config Help

[PhoneTechMan]

Hello all. We've recently had a internet T1 installed for a unsecured network that we're setting for visting vendors, salespeople, etc., which is in no way connected to our network. I've got a 2621, with 1 WIC that I inherited already configed for a T1. As a noob to router config, I thought pretty much all I'd have to do would be to change the IP info, and call it a day. Can someone take a look at what I've got so far and tell me what I need or need to add or subtract? Thanks in advance.


interface Serial0/0
ip address 209.234.138.242 255.255.255.252
encapsulation ppp
no fair-queue
service-module t1 timeslots 1-24
!
interface Ethernet0/1
ip address 66.162.43.17 255.255.255.248
no mop enabled
!
router igrp 1
redistribute connected
network 209.234.138.0
!
ip classless
ip route 0.0.0.0 0.0.0.0 209.234.138.241
ip http server
!
dialer-list 1 protocol ip permit
dialer-list 1 protocol ipx permit
snmp-server community public RO

 

[baddos]

You would have to check with your ISP to verify the T1 configuration. You currently have it setup for PPP but it could be something else. Also you don't need to run IGRP on your serial interface with you already have a default route there.

 

[PhoneTechMan]

Did that, they tell me to set it for ppp. I'll remove igrp.

 

[baddos]

Can you ping 209.234.138.241 from your router?

Is 66.162.43.17 your new public subnet assigned to you by your new ISP?

 

[PhoneTechMan]

Nope, can't ping 209.234.138.241. The 66.162.43.17 is one of 5 usable IP's assigned to us.

 

[baddos]

If you can't ping that address, then you need to get on the phone w/ your ISP and verify the configuration.

 

[JOAMON]

do a show interface s0/0 and post the output.

 

[PhoneTechMan]

show int s0/0
Serial0/0 is down, line protocol is down
Hardware is PQUICC with Fractional T1 CSU/DSU
Internet address is 209.234.138.242/30
MTU 1500 bytes, BW 1536 Kbit, DLY 20000 usec,
reliability 252/255, txload 1/255, rxload 1/255
Encapsulation PPP, loopback not set
Keepalive set (10 sec)
LCP Closed
Closed: IPCP, CDPCP
Last input 20:59:28, output 20:59:24, output hang never
Last clearing of "show interface" counters 21:48:41
Input queue: 0/75/0/0 (size/max/drops/flushes); Total output drops: 0
Queueing strategy: fifo
Output queue :0/40 (size/max)

 

[KeithKessler]

Sounds like it could be a physical layer 1 problem. I'd check the wiring on the jack if it's been extended from the smart jack at the demarc

 

[PhoneTechMan]

Nothing wrong at Layer 1, I'm coming straight off the smart jack on the NIU shelf.

 

[KeithKessler]

What lights are illuminated on the back of your WIC T1 card?

 

[PhoneTechMan]

Carrier detect is green, Alarm is amber

 

[KeithKessler]

The Alarm light should be on at all - you're going to have to get back on the horn with the ISP.

 

[JOAMON]

BW 1536 Kbit

This item should be 1544 not 1536.

1536 is ANSI robbed bit. Unless they are using ANSI...which is doubtful. Try pulling the board out of the NIU and bring down the circuit. Replace board and reload router and check again for status. I had this same thing happen and this fixed it for us. After that I read 1544 and the circuit came up. May or may not work for you but it does not cost anything to try.

 

[PhoneTechMan]

Had the carrier troubleshoot it last night, and they did find some issues that they repaired. Right now, when I do a show int, I'm getting the interface is up, line protocol is down. I'm at another one of our locations right now, so I'll try re-seating the card in the NIU when I get back to the main location. Any other ideas?

 

[artesian2000]

Up/down at least says it sees a t-1 signal. You need to work with the ISP to see if they can loop the csu on the wic. You also need to verify the service module options.
Make sure it's set for b8zs/esf and clock is set to line.
A show service-module s0/0 should look like this

Module type is T1/fractional
Hardware revision is 1.2, Software revision is 20060515,
Image checksum is 0x3EF131, 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 3d01h
loss of signal : 0,
loss of frame : 0,
AIS alarm : 0,
Remote alarm : 0,
Module access errors : 0,
Total Data (last 96 15 minute intervals):
0 Line Code Violations, 5 Path Code Violations
0 Slip Secs, 0 Fr Loss Secs, 0 Line Err Secs, 5 Degraded Mins
5 Errored Secs, 0 Bursty Err Secs, 0 Severely Err Secs, 0 Unavail Secs
Data in current interval (237 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

 

[PhoneTechMan]

This is what I have now....
OK]
test_rtr2#show int s0/0
Serial0/0 is up, line protocol is down
Hardware is PQUICC with Fractional T1 CSU/DSU
Internet address is 209.234.138.242/30
MTU 1500 bytes, BW 1536 Kbit, DLY 20000 usec,
reliability 255/255, txload 1/255, rxload 1/255
Encapsulation PPP, loopback not set
Keepalive set (10 sec)
LCP Listen
Closed: IPCP, CDPCP
Last input 14:58:43, output 00:00:26, output hang never
Last clearing of "show interface" counters 00:42:43
Input queue: 0/75/0/0 (size/max/drops/flushes); Total output drops: 0
Queueing strategy: weighted fair
Output queue: 0/1000/64/0 (size/max total/threshold/drops)
Conversations 0/1/256 (active/max active/max total)
Reserved Conversations 0/0 (allocated/max allocated)
5 minute input rate 0 bits/sec, 0 packets/sec
5 minute output rate 0 bits/sec, 0 packets/sec
0 packets input, 0 bytes, 0 no buffer
Received 0 broadcasts, 0 runts, 0 giants, 0 throttles
0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored, 0 abort
510 packets output, 7140 bytes, 0 underruns
0 output errors, 0 collisions, 137 interface resets
0 output buffer failures, 0 output buffers swapped out
0 carrier transitions
DCD=up DSR=up DTR=up RTS=up CTS=up


test_rtr2#show serv
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 00:46:39
loss of signal : 0,
loss of frame : 0,
AIS alarm : 0,
Remote alarm : 0,
Module access errors : 0,
Total Data (last 86 15 minute intervals):
519 Line Code Violations, 1851 Path Code Violations
218 Slip Secs, 21035 Fr Loss Secs, 19 Line Err Secs, 4 Degraded Mins
33 Errored Secs, 8 Bursty Err Secs, 3 Severely Err Secs, 21037 Unavail Secs
Data in current interval (856 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

 

[JOAMON]

You did use a straight through cable from router to NIU right? A crossover cable might bring the interface up but will for sure not bring up the line.

 

[PhoneTechMan]

yup,yup a straight through cable is in place.

 

[JOAMON]

Here is a copy of my T1 output:
Please note the difference in bandwidth. Still think this is causing your problem. Get your ISP to check it. Put a loopback plug in the NIU and have them go intrusive on the circuit.







2611_t1#sh int s0/0
Serial0/0 is up, line protocol is up
Hardware is PQUICC with Fractional T1 CSU/DSU
Description: multilink 1 interface
MTU 1500 bytes, BW 1544 Kbit, DLY 20000 usec,
reliability 255/255, txload 4/255, rxload 14/255
Encapsulation PPP, LCP Open, multilink Open, loopback not set
Keepalive not set
Last input 00:00:00, output 00:00:00, output hang never
Last clearing of "show interface" counters 23:58:29
Input queue: 0/75/0/0 (size/max/drops/flushes); Total output drops: 0
Queueing strategy: fifo
Output queue: 0/40 (size/max)
5 minute input rate 90000 bits/sec, 10 packets/sec
5 minute output rate 25000 bits/sec, 10 packets/sec
1340274 packets input, 993360482 bytes, 0 no buffer
Received 0 broadcasts, 0 runts, 0 giants, 0 throttles
0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored, 0 abort
1100876 packets output, 271089328 bytes, 0 underruns
0 output errors, 0 collisions, 0 interface resets
0 output buffer failures, 0 output buffers swapped out
0 carrier transitions
DCD=up DSR=up DTR=up RTS=up CTS=up


2611_t1#sh serv
Module type is T1/fractional
Hardware revision is 0.96, Software revision is 20040131-0.3,
Image checksum is 0x873E3B7E, 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 23:58:33
loss of signal : 0,
loss of frame : 0,
AIS alarm : 0,
Remote alarm : 0,
Module access errors : 0,
Total Data (last 95 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 (660 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