[nsp] BGP Entries - Comparison

[Paul Stewart]

Hi everyone...

I'm trying to diagnose why our upstream providers have some varying numbers
of routes coming to us...

Provider A has 136992
Provider B has 141471
Provider C has 121855

These are three full feeds coming into us... Why the huge difference in
numbers?  I realize that there will be differences based on connectivity
etc. but that much??

I'm currently looking at how many /25 /26 /27 etc. *small* subnets are
hitting us, as Provider B is sending us thousands of /27 blocks and even
thousands of /29 blocks....

Is anyone cutting tables off at /24 and what has your experience been?  I
thought for some reason that you were not even allowed to advertise any
subnets smaller than /24's via BGP anyways or am I dreaming? :)

Thanks,

Paul Stewart