Re: Redundant AS's

["Robert E. Seastrom" <rs () seastrom com>]

bmanning () vacation karoshi com writes:

> On Sun, Mar 22, 2009 at 10:56:06PM +0000, Nick Hilliard wrote:
> > On 21/03/2009 16:36, bmanning () vacation karoshi com wrote:
> > >    er... 'parm me sir, but aren't -all- ASNs 4 bytes?
> > >
> > >    i mean, for lo these many years we cheated and only
> > >    used the first two bytes...  but the spec always
> > >    called out four bytes.
> >
> > There seems to be a bug in my router:
> >
> > > router(config)#router bgp 196641
> > >                               ^
> > > % Invalid input detected at '^' marker.
> > >
> > > router(config)#
> >
> > Do you know of anyone I could call who can fix this?
> >
> > Nick
>
>
>       your using the wrong protocol.. :)
>       or the wrong version of a vendors code.
>       try EGP and you should be fine w/ 4byte ASNs.

rfc 827, page 3:

   Autonomous systems will be  assigned  16-bit  identification
   numbers  (in  much  the same ways as network and protocol numbers
   are now assigned), and every EGP message header contains one word
   for  this  number.  

-r