Re: [squid-users] L4/L7 switch for caching

When L4 is used, does squid need to validate the http traffic, like virus, BT or other "abnormal" traffic?

So, does it cause squid unstable or high utilization ?

--- On Wed, 7/16/08, Henrik Nordstrom <henrik_at_henriknordstrom.net> wrote:

> From: Henrik Nordstrom <henrik_at_henriknordstrom.net>
> Subject: Re: [squid-users] L4/L7 switch for caching
> To: "Pablo García" <malevo_at_gmail.com>
> Cc: "Ryan Raymond" <rray1080_at_yahoo.com>, squid-users_at_squid-cache.org
> Date: Wednesday, July 16, 2008, 5:19 AM
> tis 2008-07-15 klockan 23:46 -0300 skrev Pablo García:
> > You want to balance your squid cache farm, using a
> URLHASH algorithm,
> > to increase the hit ratio, that would be L7.
>
> Assuiming you do transparent interception like everyone
> else then for
> most setups, large as small, it's quite sufficient to
> balance based on
> destination IP. But it's good if the load balancer has
> built-in HTTP
> checks, proper monitoring each server for availability.
>
> On the other hand, if your network (router/switch) supports
> WCCP then no
> additional load balancer is needed as the load balancing
> you need is
> already in the network equipment and almost
> auto-configured..
>
> If you are doing explicit configuratoin (manaul or auto
> discovered) then
> L7 is needed for load balancing if you want decent hit
> ratio, at least
> until intra-array CARP routing gets implemented...
>
> Regards
> Henrik
Received on Wed Jul 16 2008 - 10:42:05 MDT