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Pikupiku742
20 pts.
 Problem with Cisco router
Cisco 3660, Cisco IOS, Router Troubleshooting
I have a old 3660 cisco router. IOS is 11.3

it has got a 8 port WAN card.

The problem is, with live media the port goes up but line protocol remains down.

the cables, connectors and ok I have checked those with other router and they work fine with other routers. 

So any idea............

thanks in advance.



Software/Hardware used:
Cisco router 3660
ASKED: August 19, 2009  1:33 PM
UPDATED: October 31, 2011  3:07 PM
RELATED QUESTIONS
Answer Wiki:
What type of media? Possibly a clocking issue?
Last Wiki Answer Submitted:  August 19, 2009  3:47 pm  by  KDubb   115 pts.
All Answer Wiki Contributors:  KDubb   115 pts.
To see all answers submitted to the Answer Wiki: View Answer History.


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That was my thought as well :-)

If connecting to another router back-to-back, check if the interface cable is the DTE or DCE. If it is the DCE then use the interface command clock rate as one end needs to generate a clock otherwise the interface protocol does not come up. If it is connecting to your service provider then they should provide the clock and your interface is a DTE (so no clock rate command), but it does need the correct protocol (HDLC, PPP, Frame-Relay or whatever).

BlankReg
 12,245 pts.
 

Agree with both gents: Check the clock rate / Port / Protocol configs…

Sixball
 8,500 pts.