The SIR approach might not work if your switch does not support selective installing routes. Also the switch might have a very slow CPU and be memory constrained, making downloading a large number of routes impractical even if you do not install all. IX and transit providers are making this harder that it needs to be. Just allow two IP and MAC addresses on the peering network. Then you can just have a server running BIRD directly on the peering network using next hop attribute to redirect traffic through the switch. Actually I believe Cogent offers /29 on the peering link so you can do exactly that. Regards Baldur Den 03/04/2015 21.19 skrev "Chris Boyd" <cboyd@gizmopartners.com>:
Can we please get back to the original topic?
So far we have had one interesting and useful suggestion that I've seen -- Paul S. mentioned SIR https://github.com/dbarrosop/sir
Have I missed any other solutions other than the prefix length filtering?
--Chris