North American Network Operators Group

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RE: Confussion over multi-homing

  • From: Richard Welty
  • Date: Thu Sep 14 15:40:04 2000

> Wouldn't one of the ISPs have to advertise a longer prefix?   

actually, to do it right, both have to advertise the longer prefix --
or more specifically, they have to both make holes in their filters
permitting the multi-homed site to advertise them.

this is what we're doing in our Troy, NY facility -- we have 2
upstreams,
and we have a /24 from one of them, which both of them pass through.

richard