Easy ways to define Cisco router’s WIC card and cables reliability.
December 4th, 2008 | by Frenday |
During troubleshooting process with cisco router I need to make sure that the WIC and cable is working, so I normally used this command:
(I used Cisco 2600 Series for sample)
1. show interface serial0/0
Router#sh interface s0/0
Serial0/0 is down, line protocol is down
Hardware is PowerQUICC Serial
MTU 1500 bytes, BW 1544 Kbit, DLY 20000 usec,
reliability 255/255, txload 1/255, rxload 1/255
Encapsulation FRAME-RELAY, loopback not set
Keepalive set (10 sec)
…..bla….bla….bla…
Make sure WIC card reliability is 255/255 else try changing the card. Some time you have to enter the same command few times…means like refreshing it to achieve 255/255 if it still shows something below 255/255 than try changing the card.
2. show controllers serial0/0
Router#sh controllers s0/0
Interface Serial0/0
Hardware is PowerQUICC MPC860
DTE V.35 TX and RX clocks detected.
idb at 0×8112799C, driver data structure at 0×8112F4A0
….bla…bla…bla….
Make sure the card can detect the DTE cable with TX and RX clock rate from NTU else try changing the WIC card or the DTE cable. There is case where the card can detect the cable but not the clock rate from NTU even after changing it to a new cable in this case consult you service provider.
I’m not an expert in Cisco’s but in my daily routine this tips helps me a lot so I hope it will do the same for others too…good luck!
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One Response to “Easy ways to define Cisco router’s WIC card and cables reliability.”
By Marc N on Jan 8, 2009 | Reply
You can check out http://www.usedcisco.org for more used cisco products that are indeed cheap and already tested