Token Ring/Inet problem...

[elee4fg at jetson.uh.edu]

In article <1991May10.133140.4586 at rs6000.cmp.ilstu.edu>, dbeedle at rs6000.cmp.ilstu.edu (Dave Beedle) writes:
>      Hi all.  I've got a strange problem which I hope someone can help
> with.  We have a model 530 on out 16mbps Token Ring running the internet
> protocols.  Well,  recently, at various times, inetd (maybe the token ring
> card?) has been shutting down and can't be restarted without rebooting.
> The message in the errlog is "EXCESSIVE TOKEN-RING ERRORS".  This is
> becoming a pain since it happens 1-3 times a day.  In addition, this seems
> to hit a model 320 on ethernet (hooked to TR via 8209 bridge).  Can anybody
> give me any clues?  Thanks!
>   
>      
>     Here's the errlog entry:
>  
> ERROR LABEL:	TOK_ESERR
> ERROR ID:	AF1621E8
> 
> Date/Time:       May 10 01:40:36
> Sequence Number: 7159
> Machine Id:      000051661000
> Node Id:         rs6000
> Error Class:     H
> Error Type:      PEND
> Resource Name:   TokenRng
> Resource Class:  NONE
> Resource Type:   NONE
> Location:        NONE
> 
> Error Description
> EXCESSIVE TOKEN-RING ERRORS
> 
> Probable Causes
> TOKEN-RING FAULT DOMAIN
> 
> Failure Causes
> TOKEN-RING FAULT DOMAIN
> 
> 	Recommended Actions
> 	REVIEW LINK CONFIGURATION DETAIL DATA
> 	CONTACT TOKEN-RING ADMINISTRATOR RESPONSIBLE FOR THIS LAN
> 
> Detail Data
> SENSE DATA
> 0ACA 0032 A440 0001 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 2080 0000 
> 0000 0010 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 78CC 0000 0000 0005 
> C88F 0306 F4E0 0000 1000 5A4F 3904 1000 5A4F 3904 3030 3030 0000 0000 0000 0000 
> 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 
> 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 
> 0000 0000 0000 0000 
>   
>       
>     
> ERROR_ID TIMESTAMP  T CL RESOURCE_NAME  ERROR_DESCRIPTION
> AF1621E8 0510014091 P H  TokenRng       EXCESSIVE TOKEN-RING ERRORS
> AF1621E8 0509160991 P H  TokenRng       EXCESSIVE TOKEN-RING ERRORS
> AF1621E8 0509024791 P H  TokenRng       EXCESSIVE TOKEN-RING ERRORS
> AF1621E8 0508172591 P H  TokenRng       EXCESSIVE TOKEN-RING ERRORS
> AF1621E8 0508031691 P H  TokenRng       EXCESSIVE TOKEN-RING ERRORS
> AF1621E8 0507171991 P H  TokenRng       EXCESSIVE TOKEN-RING ERRORS
> AF1621E8 0506194591 P H  TokenRng       EXCESSIVE TOKEN-RING ERRORS
> AF1621E8 0430030791 P H  TokenRng       EXCESSIVE TOKEN-RING ERRORS
> AF1621E8 0429173091 P H  TokenRng       EXCESSIVE TOKEN-RING ERRORS
> AF1621E8 0426231491 P H  TokenRng       EXCESSIVE TOKEN-RING ERRORS
> -- 
>   Dave Beedle                                    Office of Academic Computing
>                                                     Illinois State University
>   Internet:  dbeedle at rs6000.cmp.ilstu.edu                    136A Julian Hall  
>     Bitnet:  dbeedle at ilstu.bitnet                          Normal, Il   61761
I am not sure whether you have the same problem.  Next time, when it happened,
get a computer to ping your RS/6000 and see whether that restarts your INETD
wo deamon. I have two RS/6000 nob530 and nob540.  In my crontab , the RS/6000
ping each other every hour.  That seems to solve the problem.  I have AIX 3.1
patch 3002.  Other known problems:
1) Cannot telnet to SCO Xenix but can rlogin to SCO Xenix and SCO Xenix can
    telnet to RS/6000.
2) If a user telnet to RS/6000 through PC TCP of FTP software and did not
logoff properly, it drive RS/6000  nuts.
The session will goes to sleep and eat away 10 to 50 % of CPU power.
You can detect this situation by running sar.
If the percent of system time is much greater than user time more than 10 %
that can be it. Run ps au to find the session and kill it.
ps au will find the session (pts/?) that does not show up in w command
3) RS/6000 with token ring (TCP/IP) connect to Cisco Router with multiple
bridges.  Need to define a static ARP entries on Cisco or else the link
is not stable.
Seng C. Gan
Star Enterprise
Tel:(713)874-7816