Re: [RRG] getting rid of longest match

[Tony Li <tli@cisco.com>]

On Feb 25, 2008, at 1:17 PM, Iljitsch van Beijnum wrote:

> After yesterday's YouTube/Pakistan Telecom debacle, I was thinking,  
> not for the first time, that the longest match first rule is more  
> trouble than it's worth.
> I think it would probably be possible to get rid of it, although  
> that would be a it tricky. The only place you really need  
> overlapping prefixes in the table is your own BGP aggregate vs  
> internal more specifics. But that should be solvable.
> Question for the hardware people: would this help with FIB lookups?

Possibly.  It very much depends on what alternate algorithm you use  
to resolve overlap.
Tony


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