Source quench received

[Vivekanandhan]

Server hangs frquently.Not able to telnet.
Responding for Ping command.Also I am getting

"Source quench received" with reply for ping command.

Kindly help me.

[Joseph Loo]

hi,

read this:

http://forums1.itrc.hp.com/service/forums/questionanswer.do?threadId=17173

it has all you need to know.

regards.

[Ron Kinner]

Not quite all.

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

should be:

TRANSPORT_NAME[X]=ip
NDD_NAME[X]=ip_send_source_quench
NDD_VALUE[X]=0
Where is X is the next available integer.

The new forum server seems to have problems with brackets in old posts.

However this will not fix your original problem. The source quench is cosmetic only.

Presumably you are dropping packets somewhere. Try running a linkloop test (see the man) on your local loop to rule out problems with the cable, switch port and NIC.

Also try
lanadmin
lan
display

on the second page of the display are the error stats. If you have a duplex mismatch then you will see either a lot of collisions or a lot of FCS errors. (Contrary to public opinion setting one side to FUll duplex will not cause the other side to switch to Full if it is set to Autonegotiate. You have to set both sides to FULL or you get a mismatch.)


Telnet wants to do a DNS lookup of the IP address of the client so make sure that

nslookup clientIP

works.

netstat -s may also show something interesting.

traceroute may also show something. Also check ps -aef (I think that is the right options) to see if there is something taking up too much proc time.

Ron

[Suresh Patoria]

Hi

check the kernerl parameter

ndd -get /dev/ip ip_ire_gw_probe

if it is 0 then set it to 1

using the following command

ndd -set /dev/ip ip_ire_gw_probe 1

Thanx

[Rita C Workman]

Source quench is really the systems bad method of flow control....basically it was just busy and was asking that all the incoming packets hold up for a bit so it could catch up.
The best thing is to just turn off the source quench messaging, since it is more of a nuisance than anything. And think about it...it is now wasting time saying it's busy.

Here's an old thread on the subject, and you can Search for others that will give you a plethora of info on the subject.

http://forums1.itrc.hp.com/service/forums/questionanswer.do?threadId=87771

Kindest Rgrds,
Rita