[AusNOG] Going Dual Homed (without waste)

[Joseph Burford]

Multihoming is to give you connectivity diversity in case of an upstream
failure, and provide alternate connectivity options if there is congestion
or other network issues, upstream from your upstream.

Multihoming for load balancing is the wrong way to look at it, you might
be able to tweak enough to make it work sometimes, maybe maybe, however
when things change on the Internet it will cause you pain.

Look for 95th percentile billing from your upstreams, this means you won't
be committing to a spend that is twice your capacity requirements.

Cheers,

Joseph
 

On 26/09/13 5:22 PM, "James Mcintosh" <james.mcintosh at rocketmail.com>
wrote:

>Hi Noggers,
>
>Somewhat of a follow on from my previous post. I got a lot of comments
>back saying we should be muti-homed rather than single homed as we
>currently are.
>
>I agree, however my question is how do we do so without over-provisioning
>transit and having too much "waste". If we're currently pumping around
>600Mbps of inbound traffic through a single transit provider, how would
>we equally balance that across two transit providers at 300Mbs each.
>
>Sure we could advertise some of our IP blocks via transit provider A and
>other IP blocks via transit provider B but that is hardly my idea of an
>easy load balancing solution and the traffic levels could still vary
>dramatically depending on downstream activities.
>
>Your comments and ideas are much appreciated.
>
>
>-James
>
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