topic Re: HP9000 ping problem in Operating System - HP-UX

HP9000 ping problem

Matteo_9 — Fri, 02 Apr 2004 04:36:02 GMT

If I ping from the server an host in my lan i have 4 packets that return in few msec (1 or 2) and 1 that return in 300msec, and so on, 4 packets FAST and 1 packet slow. If I try to ping the same host wwith another server connected on the same switch of the HP9000 the ping has no problems so i think that ther's something wrong on HP9000....can you help me?

Re: HP9000 ping problem

T G Manikandan — Fri, 02 Apr 2004 04:42:49 GMT

check

1.check the speed,duplex settings on the hpux box and at the other end,the switch.

Both speed and duplex should match.

Just do a
#lanadmin
>lan
>display

check for any collisions/errors

2.Just do a
#netstat -nr

check the routing table on the hpux machine.Probably it is taking a longer route.

3.Try replacing the network cable.

Re: HP9000 ping problem

Sanjay Kumar Suri — Fri, 02 Apr 2004 05:04:33 GMT

For the first time ARP broadcast is done to build the ARP cache. Once MAC address is known, no further broadcast is needed. That is why faster response.

Check with #arp -a command as well.

sks

Re: HP9000 ping problem

Sarvesh A Dhuri — Fri, 09 Apr 2004 06:31:27 GMT

Please check routing table in your HP9000 server using netstat -nr , please check for is there any more than one path exist to reach to the other remote server to whom you are trying to ping.

Re: HP9000 ping problem

SS_6 — Fri, 09 Apr 2004 15:07:24 GMT

lancard speed could be mismatched. Do lanscan to see lancards
#lanscan
To check speed do
#lanadmin -x 1 (where 1 is lan1)
Check speed from switch/port side.

Re: HP9000 ping problem

Steven E. Protter — Fri, 09 Apr 2004 16:42:54 GMT

Interesting.

I had similar symptoms once.

Do and unlimited length ping, say HP-Ux box to HP-UX box. If the times gradually rise, the NIC card on the target box needs to be replaced.

SEP