Multi-homing with multiple ASNs

Mark Tinka mark.tinka at seacom.mu
Fri Nov 21 09:07:49 UTC 2014


On Friday, November 21, 2014 12:00:47 AM Curtis L. Parish 
wrote:

> We have recently added a second ISP  (third if you count
> I2).  Our first "ISP" is actually a private state
> network that peers with two Tier 1 providers.  We own an
> AS number and our IP space but at the last minute
> learned our state network is advertising our network
> using two different ASNs (neither ours) so they can load
> balance their connections.    If you hit the right
> looking glass server you can see our network advertised
> by three different ASNs.    We were told by the new ISP
> that this is a problem but the state network says it is
> not.
> 
> Looking for opinions and words of wisdom on this split
> advertising issue.

Why aren't you originating your own prefixes and ASN by 
yourselves, since you own both?

Mark.
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