I am having a very frustrating problem with my 4500
it has 8 serial ports and in my lab it has back to back connections to other router (2500, 2600, 3600 etc)
The problem is that only some of the links work at different times!
I have set the 4500 to be DTE for all links as it was hving a fit doing the timing, so heres the problem
one link will work and another wont, so I tried swapping the cables and nothing, then try swapping ports on the 4500 and the fault swaps around (so youd think it was the other router) restart the router and the one that woked before now may not work and the other might work, its like a damm lottery ticket!
Ive tried various combinations with various routers! its unique to my 4500! sometimes only 2 ports wil work sometimes 6! but like I said its no the ports becuase I move a working link to another port and it still works!
the links that dont work often show serial down line protocol down, but the DCD is up and the DSR is up
any ideas?
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it has 8 serial ports and in my lab it has back to back connections to other router (2500, 2600, 3600 etc)
The problem is that only some of the links work at different times!
I have set the 4500 to be DTE for all links as it was hving a fit doing the timing, so heres the problem
one link will work and another wont, so I tried swapping the cables and nothing, then try swapping ports on the 4500 and the fault swaps around (so youd think it was the other router) restart the router and the one that woked before now may not work and the other might work, its like a damm lottery ticket!
Ive tried various combinations with various routers! its unique to my 4500! sometimes only 2 ports wil work sometimes 6! but like I said its no the ports becuase I move a working link to another port and it still works!
the links that dont work often show serial down line protocol down, but the DCD is up and the DSR is up
any ideas?
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