topic Re: Source Quench received in Operating System - HP-UX

Source Quench received

Abhishek_Kumar — Sat, 07 Jun 2008 05:41:53 GMT

Am trying to ping from Windows to HP-UX and am geting the following message

Source Quench Recieved

But the server is up and running fine.

Re: Source Quench received

Avinash20 — Sat, 07 Jun 2008 05:43:47 GMT

RFC1812 is only talking about routers not host and states
that these ICMP messages should be limited:

A router SHOULD NOT originate ICMP Source Quench messages. As
specified in Section [4.3.2], a router that does originate Source
Quench messages MUST be able to limit the rate at which they are
generated.

Re: Source Quench received

Avinash20 — Sat, 07 Jun 2008 05:44:09 GMT

2. We would suggest to disable the Source Quench errors and then check with the ping response
How to disable source quench?
*****************************

You can disable source quench by executing this command:

ndd -set /dev/ip ip_send_source_quench 0

To disable Source Quench so that it can survive a reboot, modify the /etc/rc.config.d/nddconf file as follows :

TRANSPORT_NAME[X]=ip
NDD_NAME[X]=ip_send_source_quench
NDD_VALUE[X]=0

Where X is the next logical numerical sequence in a table of values, with X starting at 0.

Once the source quench is disabled (with ndd) then perform the same ping test again and let me know the results.

Re: Source Quench received

Abhishek_Kumar — Sat, 07 Jun 2008 05:45:06 GMT

Thanks a lot !! I am able to ping to the server..

What does X implies in nddconf file.

Re: Source Quench received

Avinash20 — Sat, 07 Jun 2008 05:47:48 GMT

Its an array
If the file is all hash then your arry will start with 0.
[0]

Re: Source Quench received

Abhishek_Kumar — Sat, 07 Jun 2008 05:48:17 GMT

ok. will replace the X with 0 .. thanks avinash

Re: Source Quench received

Avinash20 — Sat, 07 Jun 2008 05:49:32 GMT

I belive, you are new to this forum.. Please feel free to assign points. This help us a lot !!

Re: Source Quench received

Avinash20 — Sat, 07 Jun 2008 05:50:38 GMT

If your issue is resolved, you can close the thread.. Thanks Abhishek,.,.

Re: Source Quench received

Abhishek_Kumar — Sat, 07 Jun 2008 05:51:08 GMT

Thanks Avinash

Re: Source Quench received

Avinash20 — Sat, 07 Jun 2008 05:52:38 GMT

Please make of use of google or the Search button in this forum..

Re: Source Quench received

Larry Liimatainen — Mon, 23 Jun 2008 20:09:10 GMT

I wouldn't advice disabling source quench, because it is an symptom.

Under normal operation, they shouldn't be generated by hp-ux alot.

Seeing source quench from an hp-ux can be correlated to low memory on the system, check with top, if free memory is around megabytes, expect problem with connectivity. This would also display symptoms like hanging ssh or X11.