Depending on the topologies you're dealing with. Something like the IETF's (Simple) Virtual Aggregation may help:
https://tools.ietf.org/html/rfc6769 *I've not tried this, only read through it at some point. --chip On Wed, Feb 27, 2013 at 5:12 PM, Richard Laager <[email protected]> wrote: > On Wed, 2013-02-27 at 23:04 +0100, Alex HM wrote: > > Everybody mentions that up to 40% of the entire table is rubbish. A > > lot of people around are bashing the MLs mentioning they re-aggregate > > these prefixes, but nobody seems to have shared their methodology, > > tools, algorithm or findings. > > If you're asking about quantifying the potential for improvement, I > think you're looking for the CIDR Report: http://www.cidr-report.org > > If you're saying there's some mechanism for re-aggregating these to > reduce space in my routers' FIBs, I'm not aware of that, but would > definitely be interested. > > -- > Richard > > _______________________________________________ > foundry-nsp mailing list > [email protected] > http://puck.nether.net/mailman/listinfo/foundry-nsp > -- Just my $.02, your mileage may vary, batteries not included, etc....
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