Great Circle Associates Firewalls
(February 1997)
 

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Subject: Re: How to configure two network interface into a same subnet? -Reply
From: "Lack Mr G M" <gml4410 @ ggr . co . uk>
Date: Fri, 21 Feb 1997 10:18:02 +0000
To: "Shirley Shi" <shshi @ eatnindy2 . beijing . sgi . com>, firewalls @ GreatCircle . COM
In-reply-to: "Shirley Shi" <shshi @ eatnindy2 . beijing . sgi . com> "Re: How to configure two network interface into a same subnet? -Reply" (Feb 21, 9:56am)
References: <3 . 0 . 32 . 19970220153330 . 00768a58 @ the-wire . com> <9702210956 . ZM12200 @ eatnindy2 . beijing . sgi . com>

On Feb 21,  9:56am, Shirley Shi wrote:
> Subject: Re: How to configure two network interface into a same subnet? -R
> Hello Anton,
>
> > What good will it do you?  Are you trying to do load balancing?  Split the
> > load between
> > two cards?   Well this isn't going to do that.
>
> Yes, My customer wants to add the network bandwidth in same subnet for their
> server machine so that the server can provide more bandwidth for these
clients
> in same subnet.

   The  bandwidth  is  supplied  by the underlying network, *NOT* by the
interfaces.  Puttting 2 interfaces from a single system  onto  the  same
network  (even  if it would work - which it doesn't) isn't going to give
you any more throughput *across* that network.

   You  could  use  two interfaces onto two different subnets, and spilt
the clients across these two networks (but then the  clients  will  need
something  to  enable  them  to connect to clients on the other subnet).
This would give yu double the bandwidth (as you now have two networks).

   But  the first thing to do is to look at where the bandwidth is being
used at present.

PS:  This isn't a firewall issue...



-- 
----------- Gordon Lack ----------------- gml4410 @
 ggr .
 co .
 uk  ------------
The contents of this message *may* reflect my personal opinion.  They are
*not* intended to reflect those of my employer, or anyone else.


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