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Conference 7.286::fddi

Title:FDDI - The Next Generation
Moderator:NETCAD::STEFANI
Created:Thu Apr 27 1989
Last Modified:Thu Jun 05 1997
Last Successful Update:Fri Jun 06 1997
Number of topics:2259
Total number of notes:8590

1764.0. "exit" by ZPOVC::HINSIONG () Wed Aug 02 1995 07:32

Hi,

I have a customer with the following setup:

Alphaserver 2100/400 running Digital Unix V3.2A with an EISA FDDI module
(DEFEA) acting as an NFS server.  NFS clients include a DEC 4000 and a 
DEC 7000.  All three are connected to a DEC Concentrator 500.  I am 
currently investigating an intermittent problem whereby the system load
will increase significantly without any obvious reasons and the vmstat
output will show about 90% system time usage.  When the problem occurred
the last time, I noticed the following in the messages file.

What does the following "Ring initialized" messages mean ? What could be 
    the causes ? Is this an indication of an hardware error ?
    Will it cause network performance problems ?

Any advice is appreciated !

Thanks,
Lim Hin Siong
==========================================================================

Aug  2 10:46:35 sable vmunix: fta0: Ring initialized
Aug  2 10:46:36 sable vmunix: fta0: Ring beacon initiated
Aug  2 10:47:08 sable vmunix: fta0: Ring initialized
Aug  2 10:47:23 sable last message repeated 2 times
Aug  2 10:49:06 sable vmunix: fta0: Ring initialized
Aug  2 10:49:07 sable vmunix: fta0: Ring beacon initiated
Aug  2 10:49:40 sable vmunix: fta0: Ring initialized
Aug  2 10:50:34 sable vmunix: fta0: Ring initialized
Aug  2 10:50:36 sable vmunix: fta0: Ring initialized
Aug  2 11:05:46 sable vmunix: NFS server: stale file handle fs(766,773525) file 102410 gen 32777
Aug  2 11:05:46 sable vmunix:  getattr, client address = 137.132.10.64, errno 22
Aug  2 11:57:42 sable vmunix: NFS server: stale file handle fs(766,773525) file 102298 gen 32782
Aug  2 11:57:42 sable vmunix:  getattr, client address = 137.132.9.60, errno 22
Aug  2 12:12:44 sable vmunix: NFS server: stale file handle fs(760,13081) file 98316 gen 32828
Aug  2 12:12:44 sable vmunix:  RFS3_GETATTR, client address = 137.132.1.18, errno 22

T.RTitleUserPersonal
Name
DateLines
1764.1NETRIX::thomasThe Code WarriorWed Aug 02 1995 09:312
Ring inits are normal (assuming you aren't getting dozens per second) and
happen whenever a system attach or dettaches from the ring.
1764.2Get the counters.WARFUT::NAEEMWed Aug 02 1995 13:096
    	
    	If you are worried about hardware failure, then you should use
    	netstat -I fta0 -s to get more information. This will give
    	you datalink error count.
    		I think you have a problem on the ring rather than
    	with fta0.