[6bone] IPv6 route server

Nicolas DEFFAYET nicolas.deffayet@ndsoftware.net
08 Aug 2002 03:06:58 +0200


On Thu, 2002-08-08 at 01:54, John Fraizer wrote:

John,

> This would be slick if it acted like a route-server.  It only shows your
> selected best path from your border router(s) though.
> 
> route-server.ndsoftwarenet.net> sh ipv6 bgp 2001:4f0::1
> BGP routing table entry for 2001:4f0::/35
> Paths: (1 available, best #1, table Default-IP-Routing-Table)
>   Not advertised to any peer
>   13944
>     3ffe:81f1:0:2::1 from 3ffe:81f1:0:2::1 (62.4.18.114)
>     (fe80::260:97ff:fe0c:9803)
>       Origin IGP, metric 800, localpref 100, valid, internal, best
>       Community: 65526:502 65526:511 65526:521 65526:900 65526:1000 65526:1500
>       Last update: Thu Aug  8 01:43:08 2002

route-server.ndsoftwarenet.net> show ipv6 bgp 3ffe:300::
BGP routing table entry for 3ffe:300::/24
Paths: (2 available, best #1, table Default-IP-Routing-Table)
  Not advertised to any peer
  2602 2200
    3ffe:81f1:0:2::1 from 3ffe:81f1:0:2::1 (62.4.18.114)
    (fe80::260:97ff:fe0c:9803)
      Origin IGP, metric 600, localpref 100, valid, internal, best
      Community: 65526:502 65526:511 65526:521 65526:900 65526:1000
65526:1500
      Last update: Thu Aug  8 02:54:56 2002

  513 2200
    3ffe:81f1:0:1::1 from 3ffe:81f1:0:1::1 (213.91.4.3)
      Origin IGP, metric 600, localpref 100, valid, internal
      Community: 65526:502 65526:511 65526:521 65526:900 65526:1000
65526:1500
      Last update: Thu Aug  8 02:54:22 2002

route-server.ndsoftwarenet.net>

I don't understand why the 2nd router (62.4.18.114) don't send all
routes:

route-server.ndsoftwarenet.net> show ipv6 bgp summary
BGP router identifier 10.0.1.2, local AS number 65526
242 BGP AS-PATH entries
4 BGP community entries

Neighbor        V    AS MsgRcvd MsgSent   TblVer  InQ OutQ Up/Down 
State/PfxRcd
3ffe:81f1:0:1::1
                4 65526   22013    8778        0    0    0 00:01:23     
268
3ffe:81f1:0:2::1
                4 65526   18386    8810        0    0    0
00:00:49       39

Total number of neighbors 2
route-server.ndsoftwarenet.net>

I have in the both router (213.91.4.3 and 62.4.18.114):
neighbor 3ffe:81f1:0:2::2 route-server-client
neighbor 3ffe:81f1:0:2::2 transparent-as
neighbor 3ffe:81f1:0:2::2 transparent-nexthop

> 
> I really appreciate your taking the time to modify the zebra code and
> would like to see a patch against the latest CVS posted to the Zebra
> list.
> 
> I know that you peer with multiple other people that you should be seeing
> alternate paths to the above route via but, the route-server doesn't know
> about them.
> 
> If you want to see what I mean about the typical route-server showing
> multiple paths, telnet to route-views.oregon-ix.net and look up the ipv4
> prefix of your choice.
> 
> I don't know of anyone else running a telnet accessable route-server for
> v6 but, there are several people running my MRLG code with public access.
> 
> You can see an example at http://nitrous.ipv6.enterzone.net/
> 

Thanks for the link but a looking-glass is limited.

Best Regards,

Nicolas DEFFAYET