On a opnsense fw with promiscuous interfaces (because of carp) I see
that packets received with not own mac as dst are accepted and forwarded.
Checked a little the opnsense & freebsd src code - still got no idea if
vanilla freebsd would (not) forward a "M_PROMISC" tagged packet?
he code.*
at least there is a bug with radix_mpath; I had problems with no more
existing leafs.
http://www.freebsd.org/cgi/query-pr.cgi?pr=kern/173477
--
Mit freundlichen Grüßen,
With best regards,
Ingo Flaschberger
Geschäftsleitung
---
Beschreibung: Beschreibung: Beschreibung: logo_emai
The following reply was made to PR kern/175182; it has been noted by GNATS.
From: Ingo Flaschberger
To: bug-follo...@freebsd.org, pro...@gmail.com
Cc:
Subject: Re: kern/175182: [panic] kernel panic on RADIX_MPATH when deleting
route
Date: Tue, 15 Jan 2013 03:36:05 +0100
This is a multi-part
The following reply was made to PR kern/175182; it has been noted by GNATS.
From: Ingo Flaschberger
To: bug-follo...@freebsd.org, pro...@gmail.com
Cc:
Subject: Re: kern/175182: [panic] kernel panic on RADIX_MPATH when deleting
route
Date: Tue, 15 Jan 2013 03:28:30 +0100
This is a multi-part
Sorry - but freebsd mpath is definitley broken and nobody cares?
see:
1) http://www.freebsd.org/cgi/query-pr.cgi?pr=kern/156283
2) http://www.freebsd.org/cgi/query-pr.cgi?pr=kern/173477
Kind regards,
Ingo Flaschberger
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/linux_time_sequence_graph_stevens.jpg
round trip time:
FreeBSD: http://devel.crossip.net/freebsd_round_trip_time.jpg
Linux: http://devel.crossip.net/linux_round_trip_time.jpg
Kind regards,
Ingo Flaschberger
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http
.jpg
Linux: http://devel.crossip.net/linux_time_sequence_graph_stevens.jpg
round trip time:
FreeBSD: http://devel.crossip.net/freebsd_round_trip_time.jpg
Linux: http://devel.crossip.net/linux_round_trip_time.jpg
Kind regards,
In
7.2-STABLE
FreeBSD 8.2-STABLE
FreeBSD 9.1-PRERELEASE
Linux performs much better, max speed was 1.2Mb/sec, and is not as much
up & down ramping as freebsd.
Can anyone compare how other *BSD performs?
Kind regards,
Ingo Flaschberger
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he packets had a length of
1514 and no dubs or retransmissions.
1514? max mtu on ethernet is 1500
can you send me (directly) a send and receive site tcpdump from linux
and freebsd for a whole data-transfer?
Kind regards,
Ingo Flaschberger
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Am 22.11.2012 14:16, schrieb Ingo Flaschberger:
*) try a rate-shaping queue outgoing (not really good - as shaping
works
best on incomming interfaces):
sorry - told something wrong.
shapeing works best on outgoing interfaces (not incomming)
you need dummynet (and ipfw for this example
load the tcpdump data (tcpdump -s 1500 -w filename ...) into
wireshark, you can graph the speed (bit/sec, packets/sec) and do some
more tcp analysis.
Kind regards,
Ingo Flaschberger
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shostip to destinationhostip
ipfw pipe 1 config bw 10Mbit/s queue 50Kbytes
Kind regards,
Ingo Flaschberger
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):
ipfw add pipe 1 all from
ipfw pipe 1 config bw 10Mbit/s queue 50Kbytes
(adjust queue size ~40ms at rated speed)
Kind regards,
Ingo Flaschberger
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fconfig)
*) check and compare tcpdump
Kind regards,
Ingo Flaschberger
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Am 21.11.2012 00:30, schrieb Barney Cordoba:
--- On Tue, 11/20/12, Ingo Flaschberger wrote:
stems (Intel 82541GI) polling prevent live-locks.
Best test:
Loop a GigE Switch, inject a Packet and plug it into the
test-box.
Yeah, thats a good real-world test.
To me "performance&qu
acket performance you burn a core
to run a polling loop.
At new systems, without polling I had better performance and no live-locks,
at old systems (Intel 82541GI) polling prevent live-locks.
Best test:
Loop a GigE Switch, inject a Packet and plug it into the test-box.
Kind regards,
Ingo Flaschb
gt;m_nextpkt = NULL;
(*ifp->if_output)(ifp, m_hold, &sa, NULL);
}
- } else
+ } else {
LLE_WUNLOCK(la);
- }
+ IF_AFDATA_UNLOCK(ifp);
+}
+ }
Dear Alexander,
If nobody objects I plan to commit this change at the end of next week.
LLE_RNLOCK(la); should be LLE_RLOCK(la); in arpresolve
Kind regards,
Ingo Flaschberger
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http
The following reply was made to PR kern/156283; it has been noted by GNATS.
From: Ingo Flaschberger
To: bug-follo...@freebsd.org, i...@freebsd.org
Cc:
Subject: Re: kern/156283: [ip6] [patch] nd6_ns_input - rtalloc_mpath does
not return a locked rtentry
Date: Thu, 08 Nov 2012 17:55:11 +0100
w what would be best default value since I don't
have experimentation data. Note, most non-pseudo drivers do not
rely on the tunable.
perhaps to mention the net.link.ifqmaxlen tuneable and symptoms at tun
manpage?
Kind regards,
Ingo Flaschberger
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10.20.20.1
nothing
resend this "question" - as there was no respone.
Kind regards,
Ingo Flaschberger
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prove performance, but as
you mentioned above, the bottlenecks of this system are the "desktop"
pci network cards.
I would really like to see some compareable tests with 10gbe hardware.
Kind regards,
Ingo Flaschberger
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l tables
(400k routes) and do some tests at 10gbe speed.
Kind regards,
Ingo Flaschberger
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| grep 10.20.20.1
nothing
Mit freundlichen Gruessen,
Ingo Flaschberger
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A-1020 Wien, Sebastian Kneipp Gasse 1/3
Sitz der Gesellschaft: 1020 Wien, Oesterreich
Firmenbuchgericht: Handelsgericht Wien, FN 269698 s
Hi,
# ifconfig vlan5 create
# ifconfig vlan5 192.168.13.16/32
# ifconfig vlan5 down
# ifconfig vlan5 up
Ok, I reproduced the error and I just submitted a problem report PR/156278
can you check if this patch helps:
kern/150481
Kind regards,
Ingo Flaschberger
Hi,
"wrong" alert - found the answer by myself.
Bye,
Ingo
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free? - mtu could be invalid?
*) could also free a flowtable entry?
Mit freundlichen Gruessen,
Ingo Flaschberger
Geschaeftsleitung
crossip communications gmbh
A-1020 Wien, Sebastian Kneipp Gasse 1/3
Sitz der Gesellschaft: 1020 Wien, Oesterreich
Firmenb
snap ---
If this script runs without any kernels errors (dmesg), crashes and probe
replies accordingly - then everything is alright.
Mit freundlichen Gruessen,
Ingo Flaschberger
Geschaeftsleitung
crossip communications gmbh
A-1020 Wien, Sebastian Kn
example that does not work:
ifconfig em0 192.168.0.1/24
ifconfig em1 10.0.0.1/24
route add 10.0.0.0/24 192.168.0.2
What doesn't work ? The add or the delete operation?
I can add and delete the 10.0.0.0/24 route fine on my system.
try the attached script.
now with script.
Kind regards,
Hi,
kern/155772 can be resolved using RADIX_MPATH.
regarding kern/155772:
at stock 8.2 FreeBSD the system panics after ifconfig down / ifconfig up /
ifconfig down with 1 route and 1 interface route (multipath).
What's the exact step and a specific example that triggers a panic ?
ifconf
Hi,
I see,
What you are saying is the "rtalloc()" call does not have an indicator whether
it should be searching
for an interface route or not.
In the case when RADIX_MPATH is enabled, in_lltable_rtcheck() needs to walk the
ECMP route chain
to find an interface route.
yes.
Bye,
Can you say something more about :
"implement some multipath changes to use a direct attached
interface route and a real route, used some OpenBSD code"
I've looked at the patch but it's not obvious to me.
P.S.: I've just saw your reply to kern/155772 and was wondering if this
patch can
Can you say something more about :
"implement some multipath changes to use a direct attached
interface route and a real route, used some OpenBSD code"
I've looked at the patch but it's not obvious to me.
P.S.: I've just saw your reply to kern/155772 and was wondering if this patch
ca
sted patches may be needed.
(Still changeing some stuff, will post a new one soon.)
Kind regards,
Ingo Flaschberger
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Hi Qing,
version 4 o patch...
fixed deleting interface loopback routes.
Kind regards,
Ingo Flaschbergerdiff -u -r /usr_diff/src/sys/contrib/ipfilter/netinet/ip_pool.c
/router/usr/src/sys/contrib/ipfilter/netinet/ip_pool.c
--- /usr_diff/src/sys/contrib/ipfilter/netinet/ip_pool.c2
Dear Li,
attached latest version of ecmp patch.
Kind regards,
Ingo Flaschbergerdiff -r -u /usr_diff/src/sys/contrib/ipfilter/netinet/ip_pool.c
/usr/src/sys/contrib/ipfilter/netinet/ip_pool.c
--- /usr_diff/src/sys/contrib/ipfilter/netinet/ip_pool.c2007-10-18
21:42:38.0 +
Hi again,
had a very small typo (copy&paste and compare..)
attached new version of patch; now everything works
and error disappeared.
Kind regards,
Ingo Flaschberger
diff -r -u /usr/src/sys/contrib/ipfilter/netinet/ip_pool.c
/router/usr/src/sys/contrib/ipfilter/netinet/ip_po
Hi,
with the help from OpenBSD I was able to get working code.
Patch attached; applies fo Freebsd 8.1 Stable
I was not able to implement all OpenBSD code in function
rn_delete from sys/net/radix.c
Currently I also see this (non critical) warnings:
rn_delete: inconsistent annotation
ifaddr cac
}
}
m = m->rm_mklist;
}
} while (t != top);
The problem happen only for more than 2 same route sin the system.
sys/net/radix_mpath.c in rt_mpath_deldup
the radix_masklist should be deleted, changed?
rt_
I had since defered looking at fixing this but finding this thread I
thought I'd just let you know.
when does this occur?
Kind regards,
Ingo Flaschberger
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l there is varied
and sufficient usage.
So now I will make improvement to the implementation based on your
usage scenario and feedback.
Currently I also try to write code for this.
I can send you later the code.
Kind regards,
Ingo Fl
. So also in_lltable_rtcheck should return the direkt was route.
Kind regards,
Ingo Flaschberger
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nix
really have for a long long time) everything would be easier.
But multipath support of freebsd is in my opinion, in a "experimental"
state.
Kind regards,
Ingo Flaschberger
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Dear Li,
I am trying to figure out, if the routing table have
10.13.13.0/24 10.11.11.1
10.13.13.0/24 link#1
And if I do "ssh 10.13.13.2", which route should be used?
the route with the lower weight.
if they have the same weight, use any of them.
in arp-lookup code, the l
|| (!(flags & LLE_PUB) &&
((rt->rt_flags & RTF_GATEWAY) ||
(rt->rt_ifp != ifp {
RTF_GATEWAY?
Kind regards,
Ingo Flaschberger
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ht
calls rtalloc1
rtalloc1 seems to return the first route - and does not check for more.
diag from in_lltable_rtcheck:
IPv4 address: "10.13.13.95" is not on the network
checking now how to repair this.
Kind regards,
Ingo Flaschberger
Hi,
I have forgotten to mention, that I do the current tests with flowtables
disabled.
Kind regards,
Ingo Flaschberger
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ewrt = rt = RNTORT(rn);
here -> RT_LOCK(newrt);
RT_ADDREF(newrt);
if (needlock)
I will take a look.
thanks.
Kind regards,
Ingo Flaschberger
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RT(rn);
here -> RT_LOCK(newrt);
RT_ADDREF(newrt);
if (needlock)
Kind regards,
Ingo Flaschberger
/*
* Copyright (C) 2001 WIDE Project.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modificatio
Hi,
attached bugfix.
Kind regards,
Ingo Flaschberger--- /usr/src/sys/net/radix_mpath.c_org 2010-08-23 16:36:57.0 +
+++ /usr/src/sys/net/radix_mpath.c 2010-08-23 16:38:18.0 +
@@ -294,6 +294,9 @@
weight >= rt->rt_rmx.rmx_weight
10/08/12 20:18:06 jfv Exp
$
/usr/src/sys/dev/e1000/if_lem.c:
$FreeBSD: src/sys/dev/e1000/if_lem.c,v 1.3.2.6 2010/08/12 20:18:06 jfv Exp
$
/usr/src/sys/dev/e1000/if_lem.h:
$FreeBSD: src/sys/dev/e1000/if_lem.h,v 1.2.2.2 2010/04/05 20:39:44 jfv Exp
$
Kind regards,
Ingo Flaschber
gt; or switch off the system now.
Kind regards,
ingo flaschberger
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t; 00:90:0b:0c:16:06 is the mac from 10.13.13.1
-> local (connected) should be before static route
Kind regards,
ingo flaschberger
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Dear Ask,
the problem is, that freebsd only allows 1 route to 1 destination (at
least at freebsd 6.3).
I have a similar setup (carp and routing protocols) and use a
modified ucarp with additional route add and deletes.
Kind regards,
ingo flaschberger
Dear Rihad,
bge network card seems to have small tx/rx rings?
If I understood the src/sys/dev/bge/if_bgereg.h correct, the
ring size is 512 descriptors, while intel based cards
(em) have up to 4096 descriptors.
Kind regards,
Ingo Flaschberger
Dear Rihad,
can you also send me a lspci and lspci -v ?
Sorry, this is FreeBSD, not Linux ;-)
you find a lspci in ports.
Kind regards,
Ingo Flaschberger
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Hi,
can you send me the dmesg ouput from your networkcards when they are
detected at booting?
can you also send me a lspci and lspci -v ?
Kind regards,
ingo flaschberger
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Hi,
attached a patch for ports-security-ipsec-tools Makefile
to disable to offer NATT-IKE-ENCAP.
aii.. bug in the batch, sorry.
attached new patch.
Kind regards,
Ingo Flaschberger--- Makefile_org2009-07-24 15:01:11.0 +0200
+++ Makefile2009-07-24 17:47
Hi,
attached a patch for ports-security-ipsec-tools Makefile
to disable to offer NATT-IKE-ENCAP.
Kind regardsm
Ingo Flaschberger--- Makefile_org2009-07-24 15:01:11.0 +0200
+++ Makefile2009-07-24 16:07:32.0 +0200
@@ -41,6 +41,7 @@
DPD
linux) and there
was definitley no ike proxy.
..
If i use draft-version with http://shrew.net/ ipsec-client, I see
valid incomming packets (icmp-pings), but ipsec-client tells that the
icmp-ping return packets have a unknown phase1 sa.
Kind regards,
Ingo Flaschberger
places new code.
Do you have any idea what breaks?
Will it work at 8.0? and does it make sense to go with 8.0?
(have seen some other ipsec patches from you that address stability)
Kind regards,
Ingo Flaschberger
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Dear Kaushal,
I did pciconf -lv and ran dmidecode. I could not figure it out which one
was
onboard or pci ?
Do you want me to paste the output of that commands
yes, please send me the output.
Kind regards,
Ingo Flaschberger
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readout the mb-name.
Kind regards,
Ingo Flaschberger
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nd Packets (pps) ?
Kind regards,
Ingo Flaschberger
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Currently I get 160kpps via pci-32mbit-33mhz-1,2ghz mobile pentium.
Perhaps you have some better luck at some different hardware systems
(ppc, mips, ..?) or use freebsd only for routing-table-updates and special
network-cards (netfpga) for real routing.
Kind regards,
Ingo Fl
t;ram", to have more
room for late polls.
Kind regards,
Ingo Flaschberger
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abled?
*) kern.polling.user_frac ?
*) kern.polling.reg_frac ?
*) kern.polling.burst_max ?
*) kern.polling.each_burst ?
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Ingo Flaschberger
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router itself (as opposed to using outside devices)?
thats no real "pps" forwarding performance over the network cards.
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Ingo Flaschberger
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Dear Steve,
My next "router" appliance will be:
http://www.axiomtek.com.tw/products/ViewProduct.asp?view=429
This is exactly the device that I have been testing with (just rebranded).
cool.
what performace do you reach?
Kind regards,
Ingo Fl
1500kpps in every direction. Is it unrealistic?
I would also give Dragonfly bsd a try, as Mike had the best results with
it.
Kind regards,
Ingo Flaschberger
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ith a single 2212 (dual core)
and it performed better. Less contention I suppose?
in smp locking is a performance killer.
My next "router" appliance will be:
http://www.axiomtek.com.tw/products/ViewProduct.asp?view=429
Kind regards,
In
quagga.net/route-server.php
(but they don't answered my question regarding fw-performance).
I hope TOE once MFCed to 7-STABLE will help too?
I don't think toe will help.
Kind regards,
Ingo Flaschberger
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without polling is close to 800kpps but if I push that it
starts locking me from doing things, or
how many kpps do you want to achieve?
HZ=2000 for this test (512/512 descriptors)
you mean:
hw.em.rxd=512
hw.em.txd=512
?
can you try with polling:
hw.em.rxd=4096
hw.em.txd=4096
Kind regards,
about 570Kpps.. almost 200kpps lower ? (frown)
can you post the rule here?
I'm going to drop in a 3ghz opteron instead of the 2ghz 2212 that's in here
and see how that scales, using UP same kernel etc I have now.
really, please try 32bit and 1 cpu.
Kind regards,
Ingo Fl
Dear David,
try to enable flow-control at the gig-e switch and freebsd network card.
Kind regards,
ingo flaschberger
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a
.
would be great if you can also test with 32bit.
what value do you have at net.inet.ip.intr_queue_maxlen?
kind regards,
Ingo Flaschberger
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To
but less overall speed.
2000hz should be enough.
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Ingo Flaschberger
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cross reboots)
kind regards,
Ingo Flaschberger
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ave a inet-router with gige-uplinks, it is possible that there
will be (d)dos attacks.
only polling helps you then to keep the router manageable (but dropping
packets).
Kind regards,
Ingo Flaschberger
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h
usually interface polling is also chosen to prevent "lock-ups".
man polling
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Ingo Flaschberger
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r
and the ip-data is copied from network-card-buffer to network-card-buffer
directly.
Kind regards,
Ingo Flaschberger
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RTM_MISS messages but ONLY with
this certain packets.. I don't get it? I posted the tcpdump of the types of
There is a open bug report:
http://www.freebsd.org/cgi/query-pr.cgi?pr=124540
perhaps it has something todo with the multiple fip-stuff?
kind regards,
Ingo Flaschb
Dear Paul,
I tried this.. I put 6-STABLE (6.3), using default driver was slower than
FBSD7
have you set the rx/tx buffers?
/boot/loader.conf
hw.em.rxd=4096
hw.em.txd=4096
bye,
Ingo
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tested with freebsd 6?
or try dragonfly?
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Ingo Flaschberger
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Dear Paul,
does the em-task jump from cpu to cpu?
(mp-systems are not really better for forwarding performance).
try once with only 1 cpu.
bye,
Ingo
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Dear Paul,
tried interface polling?
what hardware system? how are the nic's connected?
Kind regards,
ingo flaschberger
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Patch was removed by mailinglist, use this link instead:
http://xip.at/~transfer/ucarp-1.5_if.tar.bz2
Kind regards,
ingo flaschberger
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tes
...
I decided to use ucarp but needed to modify it.
see attached patch / scripts.
I use ucarp now since 3 months in production.
Kind regards,
ingo flaschberger
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n the mrtd router package, which is "dead"
now.
http://www.filewatcher.com/m/mrtd-2.2.2a.tgz.871976.0.0.html
Kind regards,
Ingo Flaschberger
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Dear Bruce,
Seen ayame? http://www.ayame.org/
http://lists.freebsd.org/pipermail/freebsd-net/2008-February/016815.html
I think, Ryan already know this...
bye,
Ingo
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back and remove the switch, just to be shure
the switch is not the problem.
Kind regards,
Ingo Flaschberger
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packets you will be able to achieve 800mbits, whats not bad.
perhaps with the 2 port-cards it would be better, but I think, the system
io of the processor will start limiting.
Kind regards,
Ingo Flaschberger
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lnots/ap453.pdf
Kind regards,
Ingo Flaschberger
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it (shared)
card 3: 4gbit (shared)
-
sum:4gbit
homework:
calculate with 7 ports.
Kind regards,
Ingo Flaschberger
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server_adapter.pdf
Bus width x1 Lane PCI Express, operable in x1, x4,x8, x16 slots
Bus speed (x1, encoded rate) 2.5 Gbps uni-directional; 5 Gbps bi-directional
Kind regards,
Ingo Flaschberger
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e seen routers 10 times that expensive, not able to that.
me too.
Kind regards,
Ingo Flaschberger
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essage-signalled Interrupts) are not very common on PCI
architekture; PCI-E use only MSI.
The kpps keept always around 100, equally if I used fast-forwarding,
fast-interrupts, or higher HZ values than 1000HZ.
But 100kpps is great for a router hardware of about
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
st to be shure, you have a 1000mbit link?
Kind regards,
Ingo Flaschberger
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Dear Dave,
some more ideas:
sysctl -a | fgrep ip.intr_qu
Kind regards,
Ingo Flaschberger
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