Re: [leaf-user] LEAF article

2004-04-30 Thread George Metz
Couple of things to let you know about:

Jim Hubbard wrote:

1. What sort of throughput, for instance, could LEAF-Bering theoretically
provide on a Pentium 100 system with edo ram and with 10/100 nics, cables,
and switch, assuming that all other systems connected have unlimited speed?
Check the archives; sometime in the last month or so someone ran some 
throughput tests (or posted old test results from somewhere, not sure 
which) that might give you an idea on this.

2. How does the throughput of a LEAF-Bering system running on hardware X
compare to Cisco switch X?
Different animals; LEAF does routing, firewalling, and DMZ. Switches - 
even Cisco switches, aren't designed to do that. You're generally still 
going to need a switch behind a LEAF box, unless you're going into the 
realms of quad-port NICs and other specialized hardware. What a switch 
will do is allow you to define virtual LANs and prevent unnecessary data 
spewing all over your networks, as well as provide some rudimentary 
filtering based on MAC and IP. A Cisco router is where all the 
firewalling would be done, and on a price/performance ratio - or even on 
a performance ratio - a $200 LEAF box will be way overpowered and blow 
the doors off of most Cisco routers.

3. How does LEAF-Bering compare, overall, to a Cisco switch?
Same as above.

4. What hardware do you run LEAF-Bering on, and what sort of performance do
you get from it?
For me, P3-500, 64MB memory, floppy for configs plus CD boot. And I've 
got WAY more horsepower than I need for the four systems (two 
wireless-connected computers and two ethernet connected) hooked up to 
it. I'm on 3Mbit down, 256k up cablemodem, and I routinely max my line 
out for several hours at a clip without issue - I have actually seen 
3.13 Mbit/sec out of it for about 3 minutes before it drops back down to 
3.01 or so, which I tend to think was just a good minute on my 
cablemodem. With 10Mbit 3Com NICs, I believe there's a practical limit 
of around 5Mbit/sec, but very few people - even in the business world - 
are going to be using 10Mbit NICs with a pipe bigger than 5 Mbit/sec for 
their uplink.



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RE: [leaf-user] LEAF article

2004-05-03 Thread Peter Mueller
> 1. What sort of throughput, for instance, could LEAF-Bering 
> theoretically
> provide on a Pentium 100 system with edo ram and with 10/100 
> nics, cables,
> and switch, assuming that all other systems connected have 
> unlimited speed?

With good NICs (eepro100 etc.) and not too many iptables rules you will max
around 20mbit/sec.  A good rule of thumb is 5 cycles per megabit.  This
limit actually applies to all Linux servers, not just leaf.

P


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Re: [leaf-user] LEAF article

2004-05-04 Thread Charles Steinkuehler
Peter Mueller wrote:

1. What sort of throughput, for instance, could LEAF-Bering 
theoretically
provide on a Pentium 100 system with edo ram and with 10/100 
nics, cables,
and switch, assuming that all other systems connected have 
unlimited speed?
With good NICs (eepro100 etc.) and not too many iptables rules you will max
around 20mbit/sec.  A good rule of thumb is 5 cycles per megabit.  This
limit actually applies to all Linux servers, not just leaf.
I run a LEAF system (Dachstein) that routinely routes 90+ MBits/s (5 and
30 minute averages) over a 100MBit full duplex link.  The system is a
bit more powerful than what I normally use for LEAF, mainly because
that's what was onhand when the router was getting built:
360 MHz P-II
64M Ram
(2) Generic tulip 10/100 cards
100 MBit upstream link from Cogent
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Charles Steinkuehler
[EMAIL PROTECTED]
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