disconnected autonomous systems

Wed Nov 13 21:11:20 UTC 2002

> Aren't some reasons for using disconnected as's regulatory 
> based ie the
> bells etc?
> 

As far as I've seen they do the right thing and use multiple ASNs.

Kris

> 
> On Wed, 13 Nov 2002 alex at yuriev.com wrote:
> 
> >
> > > > inherently wrong with using a single AS in multiple 
> locations, and
> > > > advertising discrete blocks of address space in each 
> one. The best reason
> > > > to do this is for a network that you eventually plan to 
> merge - it
> > > > eliminates issues of having to make major BGP 
> configuration changes.
> > >
> > > Nothing inherently wrong with it if you're paying for 
> transit, but good
> > > luck getting peering in multiple locations without 
> presenting consistent
> > > views.
> >
> > No problem at all. Use a tunnel.
> >
> > Going back to the original question:
> >
> > (A) Is there a reason have disconnected ASs? Sure. Does it 
> make more sense
> > than using multiple AS numbers? No.
> >
> > (B) Is there a reason to deaggregate? Absolutely. The 
> biggest being rather
> > bad internal allocations practiced by networks.
> >
> > Alex
> >
> > --
> >
> >
> >
> 
> 