proxy-aggregation of geoff huston
Peter Lothberg
roll at stupi.se
Tue Mar 20 21:47:08 UTC 2001
> As mentioned in the ptomaine WG...
>
> ip as-path access-list 14 permit _1221_
>
> route-map TELSTRA permit 5
> descr proxy-aggregate the lazy australian who says it can't be done
> match as-path 14
>
> router bgp 1880
> aggregate-address 192.36.0.0 255.255.0.0 as-set suppress-map TELSTRA
>
> ^Z
>
> Network Next Hop Metric LocPrf Weight Path
> *> 192.36.0.0/16 0.0.0.0 100 32768 {1257,2874,702,2836,1755,13297,1653,2831,6782,5556,2833,8434,8674,1800,2865,5574,2841} ?
> * 192.36.1.0 198.67.142.173 90 0 1800 1257 i
> * i 194.68.128.21 100 0 1257 i
> * 192.108.199.209 100 0 1883 1800 1257 i
> *> 194.71.10.3 0 1257 i
> * 194.68.132.21 0 3220 1257 i
> * 192.36.147.30 100 0 1755 1257 1257 i
> * 192.36.147.11 0 1800 1257 i
> * 192.36.147.8 0 1800 1257 i
> * 192.36.147.1 0 1877 1257 i
> * 192.36.3.0 198.67.142.173 90 0 1800 1239 5511 2874 ?
> * i 194.68.128.17 100 0 2874 ?
> * 192.108.199.209 100 0 1883 2874 ?
> * 194.71.10.3 0 1257 2874 ?
> * 194.68.132.17 0 3220 2874 ?
> *> 194.68.132.17 0 2874 ?
> * 192.36.147.30 100 0 1755 5511 2874 ?
> * 192.36.147.11 0 1800 1239 5511 2874 ?
> * 192.36.147.8 0 1800 1239 5511 2874 ?
> ...
>
But, problem with them is what the are doing is traffic engineering to the third hops
behind their transits. That s why they need the deagreggated routes.
-P
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