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Re: Source Quench error but telnet works

 

Source Quench error but telnet works

Hi ,
When I try to ping my m/c from an other, I receive source quench error.
But when I telnet to the same m/c I am able to do that.

Why is this?

Please let me know.

Thanks,
Karthik Narayanan.
5 REPLIES 5
Ted Ellis_2
Honored Contributor

Re: Source Quench error but telnet works

John Poff
Honored Contributor

Re: Source Quench error but telnet works

Hi,

The source quench is an old method used by ICMP for flow control. It really isn't used anymore, and you can turn it off using the 'ndd' command. We used to see it a lot here, and it really bothered our network guys because they use OpenView to monitor everything, and when one of our boxes sent a Source Quench, it would turn their icons blue. We turned it off on all our boxes and never had a problem.

Try:

ndd -set /dev/ip ip_send_source_quench 0

to turn it off.

JP


Kellogg Unix Team
Trusted Contributor

Re: Source Quench error but telnet works

Put John's solution in the following file -

/etc/rc.config.d/nddconf
work is fun ! (my manager is standing behind me!!)
Patrick Chim
Trusted Contributor

Re: Source Quench error but telnet works

Hi,

I have posted this question before and you can go to the following link to have more details

http://forums.itrc.hp.com/cm/QuestionAnswer/1,,0x64a8663ce855d511abcd0090277a778c,00.html

Regards,
Patrick
Jim Keeble
Trusted Contributor

Re: Source Quench error but telnet works

The information you have received regarding using ndd is correct and safe to use to disable sending source quench messages.

However, the root cause could be a problem in rpcd that is corrected by the DCE runtime patch PHSS_20447. This patch text lists this as fix # 9:

9. JAGaa35855 : rpcd at 11.0 produces unwanted ICMP source quench messages.



This patch has been superceded by PHSS_21617.