I only use 2 cards when one is on a private lan and the other on a public routed interface.

And I usualy run up to 700 users on avarage on the boxes I build..


What are you expecting the 300 users to be doing?

Rob


On 29/08/2010 18:10, Jose Ildefonso Camargo Tolosa wrote:
Hi!

On Sat, Aug 28, 2010 at 11:11 PM, Andrei<funactivit...@gmail.com>  wrote:
Ooo... the line between Squid and the clients is 1000 MB. My internet
connection is 12MB. Not sure if that changes things. Does it? Would it
make a difference in that situation if clients (from 1000Mb) come on
one line, eth0 and get cached on eth1 which is only 12MB.
I assume that MB=Mega Bits (and *not* Megabytes).

If that's the case: is the squid NIC 1Gbps? if so: these are usually
full-duplex (and = to clients connection speed), so: no, you will not
have a real benefit from adding another NIC, but, if you insist, you
could do it without changing most of your configuration, by adding two
NICs together with bonding (and a port-channel on your switch, if it
support it).



Sorry if I wasn't clear before




On Sat, Aug 28, 2010 at 5:12 PM, Amos Jeffries<squ...@treenet.co.nz>  wrote:
Leonardo Rodrigues wrote:
Em 28/08/2010 12:29, Andrei escreveu:
I'm setting up a transparent Squid box for 300 users. All requests
from the router are sent to the Squid box. Squid box has one NIC,
eth0. This box receives requests (from clients) and catches content
from the web using this one NIC on its one WAN port, eth0.

Question: would it improve performance of the Squid box if I was
receiving requests (from the clients) on eth0 and caching content on
eth1? In other words, is there a benefit of using two NIC's vs. one?
This is a public IP/WAN Squid box. Both eth0 and eth1 would have a WAN
(public IP) address.


I'm on a 12Mb line.


    Your limitation is your 12Mb line .... any decent hardware can handle
that with no problem at all. ANY 100Mbit NIC, even onboard and
cheapers/generics one, can handle 12Mbit with no problem at all.

    i really dont think adding another NIC will improve your performance,
given your 12Mbit WAN limitation.


Indeed.

Andrei escreveu:
  Whether anything can be done by Squid depends on whether the clients using
Squid are on the outside of that 12Mb line or on some faster connection
between them and Squid.

  For a faster internal connection and slower Internet connection you can
look towards raising the Hit Ratio' probably the byte hits specifically.
That will drop the load on the Internet line and make the whole network
appear faster to users. The holy grail for forward proxies seems to be 50%,
with reality coming in between 20% and 45% depending on your clients and
storage space.

Amos
--
Please be using
  Current Stable Squid 2.7.STABLE9 or 3.1.7
  Beta testers wanted for 3.2.0.1



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