topic network speed in bytes/sec in Operating System - HP-UX

network speed in bytes/sec

Martin Zelling_1 — Wed, 07 Mar 2001 22:08:09 GMT

I have 2 HP9000's running HP-UX 10.20 with only 1 nfs mounted file system (the rest are vxfs mounted). I would like to see the speed (in real time) of the traffic to and from that file system in bytes/second (or kb/sec or Mb/sec). I did a "man -k net" and "man -k lan" and could only find commands that showed cumulative packets sent and recieved. What commands show bytes/sec how do I read the results?

Re: network speed in bytes/sec

Jaimin Parikh — Wed, 07 Mar 2001 23:48:08 GMT

Hi,

Try 'lanadmin' command.I hope it will help you.
lanadmin gives link speed and interface statistactics.

-Jaimin Parikh

Re: network speed in bytes/sec

Philip Chan_1 — Thu, 08 Mar 2001 06:35:12 GMT

Hi,

I'm thinking of the easy way, just copy one big file with known size across then time the begin and end times. Do some maths then you'll get the effective transfer rate.

My second thought is that while copying the known size big file over, at the same use a network monitoring program (net marix, linkview etc) to check the peak and average transfer rates.

Rgds,
Philip

Re: network speed in bytes/sec

Brian Hackley — Thu, 08 Mar 2001 16:00:38 GMT

Martin,
Glance "NFS By System" gives you read and write rates.
You can also estimate potential read and write rates using ttcp or netperf for the packet type UDP/TCP and the request size e.g. 8K 32K in use by the NFS mount. Check with nfsstat -m for the request size for the NFS mount in question.
Regards,
-> Brian Hackley

Re: network speed in bytes/sec

rick jones — Thu, 08 Mar 2001 17:46:55 GMT

to the best of my knowledge, none of the tools on 10.20 show bytes per second through an interface directly. the pointer to lanadmin is a good one - you would write a small script to take the inbound/outbound octets (bytes) over an interval and do the requisite math. you might leverage some of the code from "beforeafter" at ftp://ftp.cup.hp.com/dist/networking/misc (perhaps that is tools intead of misc)

i thought i saw something about later versions of measureware starting to track interface octets, but i'm not sure which rev that is, or even if it is out, and if so, if the 10.20 flavor would do so.