cancel
Showing results for 
Search instead for 
Did you mean: 
cancel
460
Views
0
Helpful
7
Replies

new t-1 with VWIC-2MFT-T1 on both ends

jerry.mcrae
Level 1
Level 1

i have a new t-1 i want to turn up using a VWIC-2MFT-T1 on both ends of the circuit. normally i would use a wic 1dsu t1 v2 on one end and a VWIC-2MFT-T1 on the other. i installed the VWIC-2MFT-T1 with the standard controller configuration (linecode b8zs, clocksource line, framing esf) and when i placed the t-1 in the controller i get interface serial 0/0:0 up line protocol down. i also configured the serial interface after i configured the controller.

my question is - is there any other configuration i may be missing since i am using a different hardware setup?

below is a capture of the interface while trying to turn up the circuit.

Serial0/1/0:0 is up, line protocol is down

Hardware is GT96K Serial

Description: T-1 to yomammas house

Interface is unnumbered. Using address of FastEthernet0/0.10 (10.10.154.1)

MTU 1500 bytes, BW 64 Kbit, DLY 20000 usec,

reliability 217/255, txload 1/255, rxload 1/255

Encapsulation HDLC, loopback not set

Keepalive set (10 sec)

CRC checking enabled

Last input 01:05:27, output 00:00:01, output hang never

Last clearing of "show interface" counters never

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 0/1/16 (active/max active/max total)

Reserved Conversations 0/0 (allocated/max allocated)

Available Bandwidth 48 kilobits/sec

5 minute input rate 0 bits/sec, 0 packets/sec

5 minute output rate 0 bits/sec, 0 packets/sec

22 packets input, 1128 bytes, 0 no buffer

Received 7 broadcasts, 2 runts, 6 giants, 0 throttles

541 input errors, 541 CRC, 471 frame, 349 overrun, 0 ignored, 282 abort

511 packets output, 14144 bytes, 0 underruns

0 output errors, 0 collisions, 16 interface resets

0 output buffer failures, 0 output buffers swapped out

18 carrier transitions

Timeslot(s) Used:24, SCC: 0, Transmitter delay is 0 flags

7 Replies 7

Edison Ortiz
Hall of Fame
Hall of Fame

Jerry,

Who is providing the clocking ? The telco ?

What's the Serial status on the router at the other end ? It could be a provisioning problem here, have you contacted the telco carrier ?

pciaccio
Level 4
Level 4

Can you provide to us the results of a SHOW CONTROLLER T-1 to see the status of layer 1 of the T-1. Is this T-1 actually provisioned for B8ZS/ESF or possibly D4 framing??

tprendergast
Level 3
Level 3

Possible that you need to set encapsulation ppp? If this T1 is not encapsulated with HDLC, it could cause issues (ie, like a MPLS circuit).

-Tim

wochanda
Level 4
Level 4

Make sure under your 'controller t1 0/1/0' you have 'channel-group 0 timeslots 1-24 speed 64'

From the look of your output, you're only using timeslot 24 now.

good point - i'll give it a shot Friday and post.

thanks,

johnnyfranks
Level 1
Level 1

I am having a similiar but different issue with a WIC-1DSU-T1-V2 on 1841 Cisco Router. I am following guide lines on-line per a WIC-1DSU-T1 (without V2) which is configured with service-module commands rather than controllers but I can't bring the status of the Serial 0/0/0 to up. Can someone explain to me what I am missing please. I've tried the following:

Interface serial 0/0/0

service-module t1 clock source line

service-module t1 timeslots 1-24 speed 64

service-module t1 framing esf

service-module t1 linecode b8zs

ip address 192.168.1.1 255.255.255.248

encapsulation ppp

fair-que

no shutdown

but only the following saves or shows up after a "show run":

"interface Serial0/1/0

ip address 192.168.1.1 255.255.255.248

encapsulation ppp

fair-queue

service-module t1 timeslots 1-24"

and here is the full "show int"

#show int ser 0/1/0put errors, 0

MTU 1500 bytes, BW 1536 Kbit, DLY 20000 usec,

reliability 255/255, txload 1/255, rxload 1/255

Encapsulation PPP, LCP Closed, loopback not set

Keepalive set (10 sec)

Last input never, output never, output hang never

Last clearing of "show interface" counters 00:17:25

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 0/0/256 (active/max active/max total)

Reserved Conversations 0/0 (allocated/max allocated)

Available Bandwidth 1152 kilobits/sec

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

0 packets output, 0 bytes, 0 underruns

0 output errors, 0 collisions, 36 interface resets

0 output buffer failures, 0 output buffers swapped out

0 carrier transitions

DCD=down DSR=up DTR=up RTS=up CTS=down

Thank you.

The issue with your Serial 0/1/0 is that your CTS is down because your DCD is down. Your DCD is down because the remote DSR is down. You need to look at the remote end to verify they are up OK....

Review Cisco Networking products for a $25 gift card