Source Quench [7:12477]
Hi All, I am getting a " Source Quench message " from one of my HP-UX Servers when I try to ping it from an NT machine / Switch I am getting the following msg when I ping the server from the external router Sending 5, 100-byte ICMP Echos to x.x.x.x timeout is 2 seconds: Q However if I ping the same server from a Unix machine / server, it is ok. Could it be a problem with the server NIC Thanks & Regards Amit __ Do You Yahoo!? Get personalized email addresses from Yahoo! Mail http://personal.mail.yahoo.com/ Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=12477&t=12477 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Re: Source Quench [7:12477]
Hi, The Source-Quench message comes from a server when it`s buffers are unable to process all the info bieng sent to it.. this usually means that the nt is set for 100/Full - the switch is set for 100/full for the nt box , but the UX box (and its switch port)is only set for 10/half ...usually the switch is aet to auto . without any special processing on the switch it will just send as many packets out of one port that it recieve`s from another... check the settings on both servers and make sure there the same... then try agian ... happens to me all the time.and the server guys INsist it`s the network HTH steve >From: "Amit Gupta" >Reply-To: "Amit Gupta" >To: [EMAIL PROTECTED] >Subject: Source Quench [7:12477] >Date: Mon, 16 Jul 2001 10:29:14 -0400 > >Hi All, > >I am getting a " Source Quench message " from one of >my HP-UX Servers when I try to ping it from an NT >machine / Switch > >I am getting the following msg when I ping the server >from the external router >Sending 5, 100-byte ICMP Echos to x.x.x.x timeout is 2 >seconds: >Q > >However if I ping the same server from a Unix machine >/ server, it is ok. > >Could it be a problem with the server NIC > >Thanks & Regards > >Amit > > > > > > > >__ >Do You Yahoo!? >Get personalized email addresses from Yahoo! Mail >http://personal.mail.yahoo.com/ _ Get Your Private, Free E-mail from MSN Hotmail at http://www.hotmail.com. Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=12492&t=12477 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Re: Source Quench [7:12477]
I doubt it's related to a problem with the NIC. If there were a problem with the NIC, it would probably be unable to respond at all or to send the source quench. The server is just telling you that it doesn't have buffers or other resources to handle the ping. When you ping from the Unix machine, what is the timeout? Does the Unix machine send less often than the router, resulting in the server not getting overwhelmed? What else is the server doing? I have seen Mac OS send source quench when pinged. I have never considered it a problem. The Mac is OK in every other respect. I'm glad this topic came up again because I had previously said that source quench was obsolsete per RFC 1812. RFC 1812 is Requirements for IPv4 Routers. A router should not send a source quench. But a host may send a source quench. Per RFC 1122, Requirements for IP Hosts, "a host may send a source quench message if it is approaching, or has reached, the point at which it is forced to discard incoming datagrams due to a shortage of reassembly buffers or other resources." Even though RFC 1122 is old, it has not been replaced as far as I can tell. So, source quench is not obsolete for hosts. Priscilla At 10:29 AM 7/16/01, Amit Gupta wrote: >Hi All, > >I am getting a " Source Quench message " from one of >my HP-UX Servers when I try to ping it from an NT >machine / Switch > >I am getting the following msg when I ping the server >from the external router >Sending 5, 100-byte ICMP Echos to x.x.x.x timeout is 2 >seconds: >Q > >However if I ping the same server from a Unix machine >/ server, it is ok. > >Could it be a problem with the server NIC > >Thanks & Regards > >Amit > > > > > > > >__ >Do You Yahoo!? >Get personalized email addresses from Yahoo! Mail >http://personal.mail.yahoo.com/ Priscilla Oppenheimer http://www.priscilla.com Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=12510&t=12477 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Re: Source Quench [7:12477]
Hello Stephen, Thanks for your reply. The Speed and the duplex settings of the server giving problem is hardcoded to 100 and Full. The ping from any other Unix machine is Ok. Regds Amit --- Stephen Skinner wrote: > Hi, > > The Source-Quench message comes from a server when > it`s buffers are unable > to process all the info bieng sent to it.. > > this usually means that the nt is set for 100/Full - > the switch is set for > 100/full for the nt box , but the UX box (and its > switch port)is only set > for 10/half ...usually the switch is aet to auto . > > without any special processing on the switch it will > just send as many > packets out of one port that it recieve`s from > another... > > check the settings on both servers and make sure > there the same... > > then try agian ... > > happens to me all the time.and the server guys > INsist it`s the network > > > HTH > > steve > > > > >From: "Amit Gupta" > >Reply-To: "Amit Gupta" > >To: [EMAIL PROTECTED] > >Subject: Source Quench [7:12477] > >Date: Mon, 16 Jul 2001 10:29:14 -0400 > > > >Hi All, > > > >I am getting a " Source Quench message " from one > of > >my HP-UX Servers when I try to ping it from an NT > >machine / Switch > > > >I am getting the following msg when I ping the > server > >from the external router > >Sending 5, 100-byte ICMP Echos to x.x.x.x timeout > is 2 > >seconds: > >Q > > > >However if I ping the same server from a Unix > machine > >/ server, it is ok. > > > >Could it be a problem with the server NIC > > > >Thanks & Regards > > > >Amit > > > > > > > > > > > > > > > >__ > >Do You Yahoo!? > >Get personalized email addresses from Yahoo! Mail > >http://personal.mail.yahoo.com/ > [EMAIL PROTECTED] > > _ > Get Your Private, Free E-mail from MSN Hotmail at > http://www.hotmail.com. > __ Do You Yahoo!? Get personalized email addresses from Yahoo! Mail http://personal.mail.yahoo.com/ Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=12645&t=12477 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Re: Source Quench [7:12477]
Hello Priscilla, Thanks for your response. Yes, it could not be a problem with the NIC since Ping from any of the UNIX machines is fine. I am using the default timeout while pinging from Unix machines. I get a Source quench message even when I specify a higher timeout setting. Regds Amit --- Priscilla Oppenheimer wrote: > I doubt it's related to a problem with the NIC. If > there were a problem > with the NIC, it would probably be unable to respond > at all or to send the > source quench. > > The server is just telling you that it doesn't have > buffers or other > resources to handle the ping. When you ping from the > Unix machine, what is > the timeout? Does the Unix machine send less often > than the router, > resulting in the server not getting overwhelmed? > > What else is the server doing? I have seen Mac OS > send source quench when > pinged. I have never considered it a problem. The > Mac is OK in every other > respect. > > I'm glad this topic came up again because I had > previously said that source > quench was obsolsete per RFC 1812. RFC 1812 is > Requirements for IPv4 > Routers. A router should not send a source quench. > > But a host may send a source quench. Per RFC 1122, > Requirements for IP > Hosts, "a host may send a source quench message if > it is approaching, or > has reached, the point at which it is forced to > discard incoming datagrams > due to a shortage of reassembly buffers or other > resources." > > Even though RFC 1122 is old, it has not been > replaced as far as I can tell. > So, source quench is not obsolete for hosts. > > Priscilla > > At 10:29 AM 7/16/01, Amit Gupta wrote: > >Hi All, > > > >I am getting a " Source Quench message " from one > of > >my HP-UX Servers when I try to ping it from an NT > >machine / Switch > > > >I am getting the following msg when I ping the > server > >from the external router > >Sending 5, 100-byte ICMP Echos to x.x.x.x timeout > is 2 > >seconds: > >Q > > > >However if I ping the same server from a Unix > machine > >/ server, it is ok. > > > >Could it be a problem with the server NIC > > > >Thanks & Regards > > > >Amit > > > > > > > > > > > > > > > >__ > >Do You Yahoo!? > >Get personalized email addresses from Yahoo! Mail > >http://personal.mail.yahoo.com/ > [EMAIL PROTECTED] > > > > > Priscilla Oppenheimer > http://www.priscilla.com > __ Do You Yahoo!? Get personalized email addresses from Yahoo! Mail http://personal.mail.yahoo.com/ Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=12649&t=12477 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
