Re: IPv6 BGP table size comparisons

[Mike Tancsa <mike () sentex net>]

On 12/21/2010 7:10 PM, Mike Tancsa wrote:
> On 12/21/2010 5:18 PM, Frank Bulk wrote:
> > There are 4,035 routes in the global IPv6 routing table.  This is what one
> > provider passed on to me for routes (/48 or larger prefixes), extracted from
> > public route-view servers.
> >      AT&T AS7018: 2,851 (70.7%)
> >      Cogent AS174: 2,864 (71.0%)
> >      GLBX AS3549: 3,706 (91.8%)
> >      Hurricane Electric AS6939: 3,790 (93.9%)
> >      Qwest AS209: 3,918 (97.1%)
> >      TINET (formerly Tiscali) AS3257: 3,825 (94.8%)
> >      Verizon AS701: 3,938 (97.6%)
>
> TATA (AS6453) out of Toronto, Canada  3,747.
>
> For my v4 transit, I only see 0.3% difference from my largest and
> smallest view.   Where as with ipv6, the difference is almost 25%.  For
> /48 and shorter, I see 757 paths missing from AS174 that I see on my
> other 2 v6 transit providers.

While looking at whats missing, I found this interesting /48.

+2607:fed0::/32
+2607:fed8::/32
+2607:ff08:cafe::/48
+2607:ff20::/32


The 2607:ff08::/32 is visible on Cogent.  But I guess they are not
serving coffee there, only on TATA and HE.

        ---Mike