ummm... ugly? You don't state if there is a problem (such as the terminals
attached to the controller not communicating with the front-end, or the FEP
can't see the controller - I guess you forgot to let us know in the
excitement of the moment), but this link might help:
http://www.cisco.com/univercd/cc/td/doc/cisintwk/itg_v1/tr1910.htm#39368
looks to me like a serial interface spoofing SNA/SDLC. I never knew a
serial interface could go down/up, but it makes sense from the spoofing
perspective - looks like the connection to the cluster controller is broken,
or someone shut off the power to the controller, or the RS-232 interface on
the controller went bad.
----- Original Message -----
From: Hawthorne, Mike MM
To:
Sent: Thursday, May 03, 2001 11:48 PM
Subject: Serial condition [7:3146]
> Can anyone explain this condition!!!
>
>
> SBCEN5_8TH_FLOOR_PHASE1#sh int s0
> Serial0 is down, line protocol is up
> Hardware is HD64570
> Description: MSWAP (RMSPEBD6)
> MTU 1500 bytes, BW 10 Kbit, DLY 20000 usec, rely 255/255, load 1/255
> Encapsulation SDLC, loopback not set
> Router link station role: PRIMARY (DCE)
> Router link station metrics:
> slow-poll 10 seconds
> T1 (reply time out) 3000 milliseconds
> N1 (max frame size) 12016 bits
> N2 (retry count) 20
> poll-pause-timer 10 milliseconds
> poll-limit-value 1
> k (windowsize) 7
> modulo 8
> sdlc vmac: 5043.C2AD.A1--
> sdlc addr C6 state is DISCONNECT
> cls_state is CLS_STN_CLOSED
> VS 0, VR 0, Remote VR 0, Current retransmit count 0
> Hold queue: 0/200 IFRAMEs 0/0
> TESTs 0/0 XIDs 0/0, DMs 0/0 FRMRs 0/0
> RNRs 0/0 SNRMs 15959/0 DISC/RDs 0/0 REJs 0/0
> Poll: clear, Poll count: 0, chain: C6/C6
> Last input never, output 00:01:36, output hang never
> Last clearing of "show interface" counters never
> Queueing strategy: fifo
> Output queue 0/40, 0 drops; input queue 0/75, 0 drops
> 5 minute input rate 0 bits/sec, 0 packets/sec
> 5 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 throttles
> 0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored, 0 abort
> 15959 packets output, 31918 bytes, 0 underruns
> 0 output errors, 0 collisions, 59 interface resets
> 0 output buffer failures, 0 output buffers swapped out
> 244682856 carrier transitions
> DCD=up DSR=up DTR=down RTS=down CTS=up
>
> Mike Hawthorne
> Johanesburg
> South Africa
>
>
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