BGP TTL

[Kurt Erik Lindqvist KPNQwest]

> A brief discussion over lunch brought up the idea of adding a BGP
> attribute - a TTL - to limit how far (by AS count) a route will
> propogate.
>
> I.e.: set TTL to 1 and your route only goes to your neighbors.
> Set TTL to 2 and it only goes to your neighbors and their neighbors.
>
> It might also help to limit the BGP ASPATH count-to-infinity problem
> when you withdraw a route (as you will only count to the TTL).
>
> This may not be useful in all cases but I suspect that it would be
> useful in enough cases that I think we should add this tool.


Hmm, do you mean this would be dropped when receiving? I am just afraid
this would slow down convergence and route acceptance at a larger
outage...

- kurtis -