On 8/12/15 7:08 AM, Ken Hohhof wrote:
My view would be if someone is filtering legitimate /24 routes, they have serious problems they need to fix. At one time maybe a small provider could plead old hardware with insufficient CAM memory to hold full BGP routes, but if they haven’t fixed it by now, screw ‘em.
Most common is filtering more specifics of a larger announcement. So if you break your /22 into /24's expect that a non-zero number of people will ignore the /24's and continue to favor the /22. Also known as "stuffing the routing table with deaggregate /24's is not reason for someone else to buy new hardware."
~Seth
