or ignore/block russia and north korea and china network blocks takes away 5% of network ranges for memory headroom, especially the large number of smaller china blocks. Some may say this is harsh but is the network contacts refuse to co-operate with abuse and 100% of the traffic is bad then why not
Colin > On 2 Apr 2015, at 07:59, Mark Tinka <mark.ti...@seacom.mu> wrote: > > > > On 1/Apr/15 19:01, Frederik Kriewitz wrote: >> >> We're wondering if anyone has experience with such a setup? > > Cisco have a feature called BGP-SD (BGP Selective Download). > > With BGP-SD, you can hold millions of entries in RAM, but decide what > gets downloaded into the FIB. By doing this, you can still export a full > BGP table to customers directly connected to your 6500, and only have a > 0/0 + ::/0 (and some more customer routes) in the FIB to do forwarding > to a bigger box. > > BGP-SD started shipping in IOS XE, but I now understand that the feature > is on anything running IOS 15. > > This would be my recommendation. > > Mark.
