Dear Dave,
and, what hz value do you use at the server?
sysctl -a | grep hz
It seems, you are missing incomming packets because the system is busy.
For this high network load, you should use 1000HZ.
(Thats a kernel compile option).
Kind regards,
Ingo Flaschberger
__
Dear Dave,
intr_queue_drops was rising very quickly, after changing queue_maxlen to 500
(from 50) the problems all went away. What's a reasonable value for that for
a high load box (5000+ interrupts a second) ?
http://devwiki.pfsense.org/Tuning?show_comments=1
they set it to 3000
intel em-car
ssage-
From: Ingo Flaschberger [mailto:[EMAIL PROTECTED]
Sent: Tuesday, February 26, 2008 9:28 PM
To: Dave Raven
Cc: freebsd-net@freebsd.org
Subject: RE: Hping/Ping
Dear Dave,
some more ideas:
sysctl -a | fgrep ip.intr_qu
Kind regards,
In
@freebsd.org
Subject: RE: Hping/Ping
Dear Dave,
some more ideas:
sysctl -a | fgrep ip.intr_qu
Kind regards,
Ingo Flaschberger
___
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http://lists.freebsd.org/mailman/listinfo/freebsd-net
To unsubscribe, send any
Dear Dave,
some more ideas:
sysctl -a | fgrep ip.intr_qu
Kind regards,
Ingo Flaschberger
___
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To unsubscribe, send any mail to "[EMAIL PROTECTED]"
Dear Dave,
do you use firewall?
what rules?
do you use traffic shaping?
# netstat -m
4078/14240/67584 mbufs in use (current/peak/max):
4078 mbufs allocated to data
4065/14168/33792 mbuf clusters in use (current/peak/max)
do you have now traffic-loss?
Kind regards,
Ingo Flasch
PM
To: Dave Raven
Cc: freebsd-net@freebsd.org
Subject: RE: Hping/Ping
Dear Dave,
> Also - sometimes during my testing I see this message, it's hard to make
it
> happen but its been popping up I'm not sure if its related/different etc
--
>
> "sendto: No buffer space availa
Dear Dave,
Also - sometimes during my testing I see this message, it's hard to make it
happen but its been popping up I'm not sure if its related/different etc --
"sendto: No buffer space available"
try:
netstat -m
Kind regards,
Ingo Flaschberger
CTED]
Sent: Tuesday, February 26, 2008 8:45 PM
To: Dave Raven
Cc: freebsd-net@freebsd.org
Subject: RE: Hping/Ping
Dear Dave,
> I have set my icmplim to 1024. When it was 200 I would sometimes get a
> warning about an OPEN port RST - which was also strange to me (that it was
> open not clo
ay, February 26, 2008 8:45 PM
To: Dave Raven
Cc: freebsd-net@freebsd.org
Subject: RE: Hping/Ping
Dear Dave,
> I have set my icmplim to 1024. When it was 200 I would sometimes get a
> warning about an OPEN port RST - which was also strange to me (that it was
> open not closed). I suspect
Dear Dave,
I have set my icmplim to 1024. When it was 200 I would sometimes get a
warning about an OPEN port RST - which was also strange to me (that it was
open not closed). I suspected that it was because 5% of my packets where
being dropped though.
The server is under reasonable load (networ
: freebsd-net@freebsd.org
Subject: RE: Hping/Ping
Dear Dave,
> Unfortunately I don't have most of that information, I can try to
> get more but my question is if hping works and ping doesn't shouldn't I be
> looking on the box itself not at the network ?
With
Dear Dave,
Unfortunately I don't have most of that information, I can try to
get more but my question is if hping works and ping doesn't shouldn't I be
looking on the box itself not at the network ?
With icmp I think about icmp bandwidth limit.
sysctl -a | grep icmp
net.inet.icmp.icmpl
EMAIL PROTECTED]
Sent: Tuesday, February 26, 2008 8:22 PM
To: Dave Raven
Cc: freebsd-net@freebsd.org
Subject: RE: Hping/Ping
Dear Dave,
> Its hard to tell but it appears like all protocols are dropping.
Tried to replace the cable?
What product/vendor is the switch?
Is it manageable?
Is fl
Dear Dave,
Its hard to tell but it appears like all protocols are dropping.
Tried to replace the cable?
What product/vendor is the switch?
Is it manageable?
Is flow-control enabled at the switch?
How much traffic does the switch handle?
How much traffic does the server handle?
bye,
Hi,
Its hard to tell but it appears like all protocols are dropping.
Thanks
Dave
-Original Message-
From: Ingo Flaschberger [mailto:[EMAIL PROTECTED]
Sent: Tuesday, February 26, 2008 8:04 PM
To: Dave Raven
Cc: freebsd-net@freebsd.org
Subject: RE: Hping/Ping
Dear Daven
Dear Daven,
I get the drops with other IP addresses on the same switch as well.
Also from another unit I can ping through the switch to the router without
any problems.
Given that hping works is it possible that it's a switch/network related
problem - I had thought it would definitely b
be a problem on the unit (a
buffer or something perhaps) seeing as hping works fine?
Thanks again
Dave
-Original Message-
From: Ingo Flaschberger [mailto:[EMAIL PROTECTED]
Sent: Tuesday, February 26, 2008 7:50 PM
To: Dave Raven
Cc: freebsd-net@freebsd.org
Subject: RE: Hping/Ping
Dear
Dear Dave,
Yes there are no hops, I'm just pinging the router infront of me.
The silbpi card uses the em driver - I tried the onboard em cards but had
the same problem..
I've also connected a cable to my other card, silbpi0, which does no traffic
and pinging on there is stable. That se
there is stable. That seems to indicate it's something card
specific, but hping never has a problem ?
Thanks for the help
Dave
-Original Message-
From: Ingo Flaschberger [mailto:[EMAIL PROTECTED]
Sent: Tuesday, February 26, 2008 7:34 PM
To: Dave Raven
Cc: freebsd-net@freebsd.org
Sub
Dear Dave,
Also, if I use tethereal to sniff for icmp packets to the host I'm
pinging I see them all even though I am getting drops --
23 packets transmitted, 22 packets received, 4% packet loss
The last two lines of my tethereal --
45 22.214610 x.x.x.x -> y.y.y.y ICMP Echo (ping) re
6:21 PM
To: 'freebsd-net@freebsd.org'
Subject: Hping/Ping
Hi all,
I have a problem where my machine is dropping packets and pings
after a few days of running (under load). The reason I'm mailing the -net
list is because I seem to have tracked down something I'm just not sure
w
Hi all,
I have a problem where my machine is dropping packets and pings
after a few days of running (under load). The reason I'm mailing the -net
list is because I seem to have tracked down something I'm just not sure
where to look now. If I use ping I get 5% drops --
872 packets transmitt
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