Pascal, >well, it seems some of you think filtering 30% of the routes is good...
Yes as this 30% of routes doesn't bring quite anything! Try to do such a filtering, look on the routes, do trace and you will see that many of them (quite all) doesn't bring more that doing a default route to your upstream providers (of course by distinguishing USA, EU, ASIA)! Another thing we saw is the flapping of those routes: I did a small script that looked for dampened prefixes on my border routers and saw that a large amount of the dampened paths are normally falling in this group. I cannot tell you if this really affects performance but it is always better to avoid.... Last thing is the used memory in the routers, although someone on the list would quickly argue that memory is not so expensive, upgrading many routers takes 1) time, 2) service interruption 3) money for what ? For 40k routes that doesn't bring much. >the bgp table doubled in about 6 years This is not right!!! When I came by ip-plus (2.1999) the bgp table was 45k now it is about 115k (2.5 time in 3 years) and many routers are still the same. I think this is the case for many other ISPs! >I dont think having 115k routes is a huge problem. I agree but by filtering you have a more scalable solution! Regards, Mic ------------------------------------------------ Michele Marazza IP-Plus, Engineering Swisscom EC-ES-PSO-IP1 Genfergasse 14 3000 Bern 50 www.ip-plus.net ------------------------------------------------ --- Outgoing mail is certified Virus Free. Checked by AVG anti-virus system (http://www.grisoft.com). Version: 6.0.380 / Virus Database: 213 - Release Date: 24.07.2002 ---------------------------------------------- [EMAIL PROTECTED] Maillist-Archive: http://www.mail-archive.com/swinog%40swinog.ch/
