Gentoo Archives: gentoo-amd64

From: William Tetrault <xcourse97@×××××××.net>
To: gentoo-amd64@l.g.o
Subject: Re: [gentoo-amd64] Packet Forwarding
Date: Wed, 21 Jun 2006 00:21:05
Message-Id: 200606201913.00537.xcourse97@charter.net
In Reply to: Re: [gentoo-amd64] Packet Forwarding by Paul de Vrieze
1 On Tuesday 20 June 2006 13:27, Paul de Vrieze wrote:
2 > On Tuesday 20 June 2006 03:17, Mihir Sevak wrote:
3 > > Hello everybody,
4 > > I am running Gentoo AMD - 64 machine as a bridge. Unfortunately
5 > > when i receive huge #
6 > > of packets (hundreds of thousands of bits / sec) it seems that i am
7 > > dropping some of the packets totally. I am using IPTraf for monitoring
8 > > my traffic.
9 > > So either the information being displayed is wrong or there is
10 > > something in linux kernel which is dropping (buffering and loosing)
11 > > the packets.
12 >
13 > Probably the information is right. A critical point is actually what kind
14 > of interface you have. Be aware that a gigabit ethernet port has only
15 > marginally less bandwith than a pci bus
16 > (http://www.acme.com/build_a_pc/bandwidth.html). If you use the system as a
17 > bridge (2 cards) that means that you cannot sustain the 1gbs bandwith and
18 > will drop packets (even with a single card you will, because the pci bus is
19 > used for more than the network card). The solution would be to use a pci
20 > express system.
21 >
22 > Paul
23
24 Yah,either PCI Express or PCI-X, which, at least for 64-bit 133MHz, has gobs
25 more bandwidth presently than PCI Express.
26 --
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