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From: long@nic.near.net (Daniel Long)
Newsgroups: comp.dcom.sys.cisco
Subject: Trouble with 1.7 Microcode
Message-ID: <31033@boulder.Colorado.EDU>
Date: 19 Dec 90 00:43:18 GMT
Sender: daemon@boulder.Colorado.EDU
Lines: 26

We're having trouble with spurious MCI resets with version 1.7 of the
MCI microcode.  The resets seem to occur when traffic on the interfaces
is heavy.  The resets show up in "show controller mci" as:

   MCI 1, controller type 1.0, microcode version 1.7
     128 Kbytes of main memory, 4 Kbytes cache memory, 22 system TX buffers
     Restarts: 1 line down, 0 hung output, 0 controller error

              ^^^

We are seeing this on two boxes, one with a CSC-2 and one with a CSC-3
processor.  On the CSC-2 box, we tried swapping MCI boards, and booting both
8.1(19) and 8.1(25).  On the CSC-3 box, we tried swapping MCI boards (only
under 8.1(19)).

This problem began when we moved to microcode 1.7 and seems to have stopped now
that we've gone back to microcode 1.5.

(We had been upgrading our MCI cards to 1.7 to solve the dribble-bit Ethernet
incompatabilities and to improve the usefulness of the error counters.
That's on hold until this is resolved.)

Anyone know what's going on here?

Thanks,
Dan