Hello, This may not be so interesting for some, but I'm still going to bring it up: is there any Internet Service Provider in Europe to follow the recommendations by the RIPE NCC regarding the longest prefix that should be routed through each network: https://www.ripe.net/ripe/docs/ripe-ncc-managed-address-space.html
Pointing this link to one of our customer is almost useless because they don't seem to get the point. I was curious of that and I made some simple calculations. If you take for example the 82.0.0.0/8 network, RIPE NCC recommends a longest prefix of "/20". I checked in the global routing table how many prefixes do not meet these requirements from this specific network. Here are the results: - 508 "/24" subnets - 152 "/23" subnets - 108 "/22" subnets - 88 "/21" subnets So, from the total of 177K global routing table, one could easily erase around 850 (0.48%) prefixes only by following RIPE NCC recommendations for 82/8 allocation space. But there is more allocation space for RIPE then this. It's around 20 times larger. So only counting Europe you could reduce the global routing table by 10%. After aggregating better and applying these rules on all five continents the global table will be much more smaller. So why isn't anybody doing this? Emanuel Popa AS8708 --------------------------------------------------------------------- EuroNOG: http://www.euronog.org/ To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
