network problems on OSF1

From: Charlie <jui_at_greisen.physics.utah.edu>
Date: Wed, 1 Feb 1995 11:40:25 -0700 (MST)

Dear OSF1 managers

Last week I posted an inquiry about NFS problems and asked if people knew
of any bugs in NFS2. I was told there was not. It turns out that not only
is the NFS performance sluggish, but general network performance is pretty
bad.

I am running OSF/1 V3.0 on an AlphaStation 200 4/166 with a "Tulip (TU)"
ethernet interface. I have already installed a patch provided by DEC
to correct some known problems in the TU device driver. But the network
performance continues to suffer. In particular, I get many many receive
errors. In particular, in response to a "Netstat -is" command, the system
gives:


tu0 Ethernet counters at Wed Feb 1 11:31:56 1995

       65535 seconds since last zeroed
   695011760 bytes received
    36922439 bytes sent
     1825491 data blocks received
      520668 data blocks sent
   351145733 multicast bytes received
     1253100 multicast blocks received
           0 multicast bytes sent
           0 multicast blocks sent
       14746 blocks sent, initially deferred
        3676 blocks sent, single collision
        3613 blocks sent, multiple collisions
           1 send failures, reasons include:
           0 collision detect check failure
       65535 receive failures, reasons include:
                Block check error
                Framing Error
                Frame too long
           0 unrecognized frame destination
           0 data overruns
           0 system buffer unavailable
           0 user buffer unavailable

Does anybody know what might be wrong?

I thought about building NNSTAT and NFSWATCH to monitor my local segment
of the ethernet, guessing that perhaps the problem is not with OSF/1 but
with the network here in Utah. But I cannot find
/usr/examples/packetfilter/pfopen.c which is needed for both.

Can anyone help me with this problem?

thanks

Charlie Jui
Received on Wed Feb 01 1995 - 14:23:47 NZDT

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