topic Re: Slow Network Response in Operating System - HP-UX

Slow Network Response

SYS ADMIN_7 — Mon, 28 Jun 2004 02:55:09 GMT

Hi All

If I am getting slow network response , what may the reason for that..
From H/W as well as HP-UX OS level
This is just a query .. I am not facing this problem..

But please reply

Rgds
Suraj

Re: Slow Network Response

Shaikh Imran — Mon, 28 Jun 2004 03:33:50 GMT

hi,
There may be many reasons for slow network.
some are listed here.
1) Network card related patches
2) Speed & duplex settings mismatch on the
card & switch.
3) Network cable problems.
4) Switch Mismatch - Vlan problem.
5) DNS,NIS Configuration problems.

Regards,

Re: Slow Network Response

SYS ADMIN_7 — Mon, 28 Jun 2004 03:54:58 GMT

Hi Imran

Thanks for the reply

One thing .. You toldabout the DNS, NIS ( I mean Name resolution ) ..
Please specify how can this effect the network response..

One thing .. R u working in HCL

Rgds
Suraj

Re: Slow Network Response

Shaikh Imran — Mon, 28 Jun 2004 04:16:32 GMT

Hi,

Are you running DNS? If so, does making a connection by address versus name differ in speed?
If it's faster when using an address you may be suffering from reverse-name-lookup delays.
Make sure that your DNS tables contain the names of all devices.

FOR NIS Check:

/etc/resolv.conf /etc/nsswitch.conf

Do you have something like NIS in nsswitch.conf while you are not using it.

Yes i was working for (Respected)HCL.

Regards,

Re: Slow Network Response

Amit Dixit_2 — Mon, 28 Jun 2004 04:36:02 GMT

Hi Suraj,
This problem can occur out of many
reason's

->Netowrk Load/Traffic on server
->Problem related to negotiation between
the switch/hub and your server.

and if you are talking about the response
time i.e. say you give command
telnet your_server_name
and it takes time to establish a
connection then its a problem related to
your DNS.

can you please explain your question.

Thanks,
Amit

Re: Slow Network Response

Muthukumar_5 — Mon, 28 Jun 2004 05:21:19 GMT

hai,

Check the I/O devices capability with ioscan call. Lanscan to check lan performance.

nslookup command to check hostname resolvation. It will give the detailful flow of hostname resolvation path. Is it from dns or files or ldap (if use ) or nisplus etc.

If you face the slow network response,there may be some entries in the syslog. It may be because of network traffic or lan interface problem or h/w problem.

We can check network response with sar,top commands.

Regards,
Muthukumar.

Re: Slow Network Response

SYS ADMIN_7 — Wed, 30 Jun 2004 05:12:52 GMT

Hi all

Thanks for your reply...

Nice to get some big good ideas

still at learning stages..

Rgds
Suraj

Re: Slow Network Response

Naveej.K.A — Wed, 30 Jun 2004 05:17:44 GMT

hi suraj,

you are learning.. good thing..
how is jalgaon???

but u forgot to assign points....

"0" for this please!!!!!!

regds
Naveej

Re: Slow Network Response

sreejith_4 — Wed, 30 Jun 2004 06:13:12 GMT

Hi,

Mostly this happens due to the mismathc of the network card speed and lan speed.
Try using the CAT5 network patch cable also

Regards
Sreejith M

Re: Slow Network Response

Mobeen_1 — Wed, 30 Jun 2004 06:58:02 GMT

Suraj,
In addition to all the reasons provided by our friend here like n/w card config, DNS, NIS, etc. I would suggest that you look at using a tool to monitor the network statistics on your host.

netstat

regards
Mobeen

Re: Slow Network Response

SYS ADMIN_7 — Wed, 30 Jun 2004 07:30:43 GMT

Hi Guys

Thanks for the response again

Dear Amit
I was expecting the same condition as mentioned by you , i.e. like Telnetting and Slow response...
My main focus was to nme resolution mistkes..

Hi Naveej

Jalgon OK
Will mail u

Rgds
Surj

Re: Slow Network Response

Naveej.K.A — Wed, 30 Jun 2004 07:42:52 GMT

suraj,

Interview question??????

0 points this time too

regds
Naveej

Re: Slow Network Response

SYS ADMIN_7 — Wed, 30 Jun 2004 07:49:01 GMT

Hi Naveej

Good Guess

Right

Suraj