[arin-ppml] Policy Proposal: Extend 16 bit ASN Assignments

Kevin Kargel kkargel at polartel.com
Thu May 7 18:17:51 EDT 2009


> -----Original Message-----
> From: Ted Mittelstaedt [mailto:tedm at ipinc.net]
> Sent: Thursday, May 07, 2009 4:59 PM
> To: Kevin Kargel; arin-ppml at arin.net
> Subject: RE: [arin-ppml] Policy Proposal: Extend 16 bit ASN Assignments
> 
> 
> 
> > -----Original Message-----
> > From: arin-ppml-bounces at arin.net
> > [mailto:arin-ppml-bounces at arin.net] On Behalf Of Kevin Kargel
> > Sent: Thursday, May 07, 2009 1:57 PM
> > To: arin-ppml at arin.net
> > Subject: Re: [arin-ppml] Policy Proposal: Extend 16 bit ASN
> > Assignments
> >
> >
> >
> > > -----Original Message-----
> > > From: arin-ppml-bounces at arin.net
> > [mailto:arin-ppml-bounces at arin.net]
> > > On Behalf Of Scott Leibrand
> > > Sent: Thursday, May 07, 2009 3:20 PM
> > > To: Owen DeLong
> > > Cc: arin-ppml at arin.net
> > > Subject: Re: [arin-ppml] Policy Proposal: Extend 16 bit ASN
> > > Assignments
> > >
> > > I disagree.  We are still waiting to get a release of the
> > code train
> > > we use on the Cisco 7600 platform that supports 32-bit ASNs.  It
> > > sounds like they're finally getting close, but I think a further
> > > extension probably would be helpful.
> > >
> > > We'll have a much better view of what's required by the
> > fall meeting,
> > > when this is up for discussion.  Since that will be our
> > last chance to
> > > change policy before the current 1 Jan 2010 deadline, I definitely
> > > think this needs to be on the agenda.
> > >
> > > -Scott
> > >
> > My understanding of the current Cisco code we are using
> > {12.2(33)}
> ^^^^^^^^^^^^<<<-------------
> 
> I take it your not going to run IPv6 on those devices, then?
> 
> Ted

I am already running IPv6 and BGP IPv6 over a tunnel .  IPv6 works fine with
a 2 byte ASN.  It lets me do ACL's and everything.  The word I have is that
4 byte ASN support starts with SRE.  As soon as I can get native IPv6 I will
run that.

7609#sh ipv6 route
IPv6 Routing Table - default - 1735 entries
...
S   ::/0 [1/0]
     via Tunnel0, directly connected
B   2001::/32 [20/0]
     via FE80::4047:8053, Tunnel0
...

The problem comes if you want to enter a four byte ASN..

7609(config)#router bgp ?
  <1-65535>  Autonomous system number

7609#ping 2001:4860:c003::68  [Google]
Type escape sequence to abort.
Sending 5, 100-byte ICMP Echos to 2001:4860:C003::68, timeout is 2 seconds:
!!!!!
Success rate is 100 percent (5/5), round-trip min/avg/max = 240/244/248 ms

Kevin
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