Multi-homing with multiple ASNs

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

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

> 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?

-------------- next part --------------
A non-text attachment was scrubbed...
Name: signature.asc
Type: application/pgp-signature
Size: 836 bytes
Desc: This is a digitally signed message part.
URL: <>

More information about the NANOG mailing list