🚀 go-pugleaf

Hello Hans,

> I just installed our first FDDI board in our Cisco, and surprise..
> it doesn't work. It looks like it cannot enter into the ring. I had it
> installed at first in our ring with 3 Interphase FDDI boards, but when that
> didn't work I tried looping back the Cisco to itself. Even that did not
> work. I configured it:
> 	interface fddi0
> 	ip address 130.37.16.1 255.255.255.0
> 	no shutdown
> 

Loopback on FDDI is not supported in the version you are running. You
need at least 9.1 and the new ucode.



> The router is now very slow, the 'show proc' output shows that the PHY-A
> and PHY-B processes take all the time. I did a shutdown on the interface
> and the router is back to normal.
> 

It is making an attempt to complete the CMT state machine. Please
check the internal cabling between the applique and the FDDI card.
Did you run a debug of fddi-cmt-events ? Did you see an increment 
in the interface resets counter ?


#show hardware
> GS Software (GS3-F), Version 8.2(7) 
> Copyright (c) 1986-1991 by cisco Systems, Inc.
> Compiled Wed 13-Nov-91 17:45 by mlb
> 
lossus#show int fddi0
> 
> Fddi 0 is down, line protocol is down 
>   Hardware type is cBus Fddi, hardware address is 0000.0c02.1076
>   Internet address is 130.37.16.1, subnet mask is 255.255.255.0
>   MTU 4470 bytes, BW 100000 Kbit, DLY 100 usec, rely 255/255, load 1/255
>   Encapsulation SNAP, loopback not set, keepalive not set
>   ARP type: SNAP, ARP Timeout 4:00:00
>   Phy-A state is connect, neighbor is unk, cmt signal bits 08/00, status HLS
>     Brk 5257, Con 5257, Tra 0, Nxt 5254, Sig 0, Join 0, Vfy 0, Act 0
>   Phy-B state is connect, neighbor is unk, cmt signal bits 20C/00, status HLS
>     Brk 5258, Con 5258, Tra 0, Nxt 5255, Sig 0, Join 0, Vfy 0, Act 0
>   CFM is isolated, token rotation 5000 usec, ring not operational
>   Upstream neighbor 0000.0000.0000, downstream neighbor 0000.0000.0000
>   Last input never, output never, output hang never
>   Output queue 0/40, 0 drops; input queue 0/75, 0 drops
>   Five minute input rate 0 bits/sec, 0 packets/sec
>   Five 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 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored, 0 abort
>      0 packets output, 0 bytes
>      0 output errors, 0 collisions, 4 interface resets, 0 restarts

I have opened case number 45267. Please refer to this when you
communicate to me on this problem.


Regards

Pasha Quadri
Cisco Cust. Engg