nanog mailing list archives

Re: IPv6 BGP table size comparisons


From: Mike Tancsa <mike () sentex net>
Date: Tue, 21 Dec 2010 19:10:39 -0500

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.

        ---Mike


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