WIC2T interface problems

Hey guys,

So I finally got my lab setup, only to find that one interface on my WIC2T is causing me problems.

I am using a back to back connection with HDLC.

The configuration thus is fairly simple, and I have verified it works on my other interface(s).

The problem interface (s0/0) on my 1760 router seems to never come up and I get "Serial0/0 is down, line protocol is down".

When I tested the same WIC on my 2610XM I am able to get "Serial0/0 is up, line protocol is down" with the line protocol flapping up and down over and over again.

From what I have read, this is likely caused by a physical hardware problem, but I thought I would post on here to see if anyone has anymore ideas or troubleshooting advice.

Thanks all!

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Comments

lantech

What are the configurations on the interfaces for your routers?

westwood

R2: (problem interface)

r2#sh ru
....
interface Serial0/0
ip address 192.168.1.19 255.255.255.0
....

r2>sh int s0/0
Serial0/0 is down, line protocol is down
Hardware is PowerQUICC Serial
Internet address is 192.168.1.19/24
MTU 1500 bytes, BW 1544 Kbit, DLY 20000 usec,
reliability 255/255, txload 1/255, rxload 1/255
Encapsulation HDLC, loopback not set
.....

r2>sh controllers s0/0
Interface Serial0/0
Hardware is PowerQUICC MPC860
DTE Unknown (13) TX and RX clocks detected.
idb at 0x81577B98, driver data structure at 0x81556FF0
...

R3
r3#sh ru
....
interface Serial1/0
ip address 192.168.1.15 255.255.255.0
clockrate 64000

r3#sh int s1/0
Serial1/0 is up, line protocol is down
Hardware is PowerQUICC Serial
Internet address is 192.168.1.15/24
MTU 1500 bytes, BW 1544 Kbit, DLY 20000 usec,
reliability 255/255, txload 1/255, rxload 1/255
Encapsulation HDLC, loopback not set
Keepalive set (10 sec)
....

r3#sh controllers s1/0
Interface Serial1/0
Hardware is PowerQUICC MPC860
DCE V.35, clock rate 64000
....

SteveO86

westwood wrote: »

R2: (problem interface)

r2>sh controllers s0/0
Interface Serial0/0
Hardware is PowerQUICC MPC860
DTE Unknown (13) TX and RX clocks detected.
idb at 0x81577B98, driver data structure at 0x81556FF0
...

r3#sh controllers s1/0
Interface Serial1/0
Hardware is PowerQUICC MPC860
DCE V.35, clock rate 64000
....

R2 is seeing the clocking form R3, but R2's DTE is showing unknown, does this cable work with other WICs? Might want to check for the sh controller output on R2 for aborts/errors, looks to be hardware issue.

I actually spent an hour last night troubleshooting one of my own WIC-2T's. I moved my WIC-2T to multiple routers, multiple cables, multiple encapsulation, and my interface consistantly flaps up/down

westwood

SteveO86 wrote: »

R2 is seeing the clocking form R3, but R2's DTE is showing unknown, does this cable work with other WICs? Might want to check for the sh controller output on R2 for aborts/errors, looks to be hardware issue.

The cable seems to be fine because it works with other interfaces and other cards with the same configuration.

SteveO86 wrote: »

I actually spent an hour last night troubleshooting one of my own WIC-2T's. I moved my WIC-2T to multiple routers, multiple cables, multiple encapsulation, and my interface consistantly flaps up/down

This is the exact type of testing I have been doing as well.

Ltat42a

Any chance it could be counterfeit?
Counterfeit / Fake Cisco WIC-1DSU-T1 Guide - Andover Test