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Date:      Thu, 19 Jun 1997 06:05:35 -0500 (CDT)
From:      Terry Todd <tlt@badger.tltodd.com>
To:        tlt@badger.tltodd.com, un_x@anchorage.net
Cc:        questions@FreeBSD.ORG
Subject:   Re: No buffer space
Message-ID:  <199706191105.GAA16258@badger.tltodd.com>

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>On Wed, 18 Jun 1997, Terry Todd wrote:
>
>> The system runs along just fine until it starts to gradually get
>> sick.  I have a static IP set up for my domain tltodd.com.
>> I use pppd to dial up the connection and run PPP.  When the system
>> gets sick everything runs fine except the TCP/IP link.  It gradually
>> degrades to the point where no traffic is going through.  If I try
>> to ping my service provider I get the following error:
>> ping: sendto: No buffer space available
>
>what do you mean "sick"?  like the flu? :)
>are you keeping your routing tables in order
>when you re-start pppd?
>
>what is some of the network data that would
>point out your troubles?  here's some to try.
>
>netstat -aA  | more
>netstat -m
>netstat -ibd | more         
>route monitor         
>{ifconfig -a;echo;netstat -r;echo;netstat -rs;}|more
>netstat -s   | more

Well, I tried restarting pppd to fix the problem but that didn't work.
I ended up having to reboot the system to get it working again.
netstat -nr looked normal.  If / when it happens again I will
try the other commands you have suggested.  It seems like it
happens when there is a heavy mail load on the system.  I run
the SmartList MLM for several mailing lists on here.  By sick
I mean it's more like it's getting a cold.  The TCP/IP traffic
starts getting congested and stops flowing. :-)  The first
time it happened I was out of town on a Boy Scout camping
trip with my son.  I ended up having to drive back home and
mess around with it to get it back up and running again.
The second time it happened I was logged into it and could
see the gradual degredation happening.  Eventually my
telnet session dropped and I had to drive home and see
what was happening as I could no longer telnet into it.
I found the system running happily along with a load of 0.
No data was going in or out.  Ping gave the error I mentioned
above.  I was in a hurry to get it fixed so I just rebooted.
Everything came up fine.   I'm still puzzled by this one.

Thanks,
Terry Todd



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