[LARTC] Gigabit Etnernet router

[LARTC] Gigabit Etnernet router

[M.F. PSIkappa]

Hi,
I would like to build new router with 3 Gigabit Ethernet card. Need I
dual procesor system or not ? I would like to have trafic controling (htb
or cbq/sfq) and firewall (iptables) on this router.
Can you recommend me some good motherborad with 64-bit PCI-X ?

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`)_|_('       PSIkappa
   I k        psi _at_ atlantis.sk

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Re: [LARTC] Gigabit Etnernet router

[bert hubert]

On Mon, Jun 24, 2002 at 04:33:32PM +0200, M.F. PSIkappa wrote:
> Hi,
> I would like to build new router with 3 Gigabit Ethernet card. Need I
> dual procesor system or not ? I would like to have trafic controling (htb
> or cbq/sfq) and firewall (iptables) on this router.
> Can you recommend me some good motherborad with 64-bit PCI-X ?

Actual gigabit speed routing is an advanced art. Having multiple processors
may in fact help in this case. Some exciting work is being done in Linux 2.5
development ('NAPI') which may also interest you.

Regards,

bert

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[LARTC] Gigabit Etnernet router

[Don Cohen]

 > Date: Mon, 24 Jun 2002 16:33:32 +0200 (CEST)
 > From: "M.F. PSIkappa" <psi@platon.atlantis.sk>
 > Subject: [LARTC] Gigabit Etnernet router
 > 
 > Hi,
 > I would like to build new router with 3 Gigabit Ethernet card. Need I
 > dual procesor system or not ? I would like to have trafic controling (htb
 > or cbq/sfq) and firewall (iptables) on this router.
 > Can you recommend me some good motherborad with 64-bit PCI-X ?

More to the point, where can you get a motherboard with 3 64x66 PCI
buses?(!!)  Note that one gigabit card actually can use 2gigabits of
PCI bandwidth (one in, one out), and a pci bus is nowhere near 100%
efficient, so one 64x66 PCI bus has enough bandwidth to handle 1 such
card at full bandwidth, not enough for 2.

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Re: [LARTC] Gigabit Etnernet router

[Admissions Office]

Good point . Such was the problem in the first series of Cisco 7000 units.
The company was only able to make them do 21.5MB  Having said that there
are still very few people who would be able to use this. In-house we have
built
several of these units using both 3Com and Intel cards. I find that two main
factors
were the most common reason for some sort of failure.. Heat from the cards
and
Intel cards were just problems. With the 3Com cards we never seems to have a
problem.

Also - a 100MB control connection was maintained over a third 3Com card.


> More to the point, where can you get a motherboard with 3 64x66 PCI
> buses?(!!)  Note that one gigabit card actually can use 2gigabits of
> PCI bandwidth (one in, one out), and a pci bus is nowhere near 100%
> efficient, so one 64x66 PCI bus has enough bandwidth to handle 1 such
> card at full bandwidth, not enough for 2.
>
> _______________________________________________
> LARTC mailing list / LARTC@mailman.ds9a.nl
> http://mailman.ds9a.nl/mailman/listinfo/lartc HOWTO: http://lartc.org/
>

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