nanog mailing list archives

Re: Start accepting longer prefixes as IPv4 depletes?


From: Owen DeLong <owen () delong com>
Date: Wed, 8 Dec 2010 15:36:15 -0800


On Dec 8, 2010, at 3:08 PM, Iljitsch van Beijnum wrote:

On 8 dec 2010, at 23:48, Jack Bates wrote:

I'm going to go out on a limb (and not read the last BGP summary reports) and say that ISPs being assigned 
fragmented space has caused more routing table bloat than deaggregation for traffic engineering.

Why would ISPs get fragmented space? The RIRs are still getting /8s from IANA at the moment.

Because ISPs get multiple blocks over years from RIRs and don't return their old small block and
renumber into a new large one.

And most deaggregation is not for traffic engineering because the attributes are all the same.

Which would support the above statement.

Owen



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