topic Re: data loss rate in Operating System - HP-UX

data loss rate

chow — Wed, 23 Oct 2002 09:08:11 GMT

Hi:
Thanks
I have a problem .
1 two hosts,hosta and hostb
2 mc/service guard was configed.
3 .rhost can be use and you can rlogin each other.
4 each host have two network interface card,one card was used for heatbeat network interface.another was for data line.for example:
hosta 192.1.1.1 heartbeat_IP
hostb 192.1.1.2 heartbeat_IP
hosta 10.0.0.1 Station_IP
hostb 10.0.0.2 station_IP
aboving is i via console to finish
following is i via network from local to remote
5 #telnet 10.0.0.1 #ok
6 #telnet 10.0.0.2 #can't visit
7 #ping 110.0.0.2 #i find a problem.
# i sended 10 data packet but got > -400% data loss rate. Usually data loss low +100%.It's a new problem.

Re: data loss rate

Bill McNAMARA_1 — Wed, 23 Oct 2002 09:15:33 GMT

how is nsswitch.conf and /etc/hosts arranged..

Later,
Bill

Re: data loss rate

chow — Wed, 23 Oct 2002 09:21:52 GMT

thanks:
/etc/hosts
hosta 10.0.0.1
hostb 10.0.0.2
/etc/nsswitch
default gateway was configed.
Two hosts was installed in same time.
I can telnet from local to remote hosta,but can't telnet remote hostb

Re: data loss rate

rick jones — Thu, 24 Oct 2002 16:51:35 GMT

a negative value for the packet loss rate in ping is an indication that you are receiving multiple ICMP echo replies to each ICMP echo request sent by ping.

this could be the result of the replies, and/or the request being duplicated.

i'd check that you do not have some sort of loop in your switching fabric

Re: data loss rate

Steven E. Protter — Thu, 24 Oct 2002 17:06:59 GMT

If you can live without it, get rid of .rlogin and all rlogin services.

The same thing can be done with ssh tools and its actually secure. There is a .slogin file and all that good stuff.

To the point, Can you telnet to both boxes from say a pc on the local network?

If not, you may simply easily solved issue.
here is how to rebuild a machines ability to accept telnet connections if for some reason you've been forced to play around with your two ioconfig files.

1405 insf -d telm
1406 insf -d telf
1407 insf -d tels
1408 insf -e

One of those commands won't do anything, but it won't hurt either.

If you can telnet to both boxes from another server, don't bother, this isn't your problem.

Steve

Re: data loss rate

Steven E. Protter — Thu, 24 Oct 2002 17:07:45 GMT

Re: data loss rate

Jeff Schussele — Thu, 24 Oct 2002 17:59:26 GMT

Hi Chow,

Don't get rid of the .rhosts file UNTIL you create (or know you have) a cmclnodelist file, with the same info, in the /etc/cmcluster dir.

MC/SG requires ONE of these files to exist.

Rgds,
Jeff