In a previous topic I was recommended to buy the new 7201 for a net with full BGP routing with reasonable bandwidth requirements (<=1Gbps) and as I saw the machine it seemed to me almost perfect. But... (there's always a "but") I'm not sure how many routes can this machine keep. It's default memory is 1GB, but how many routes fits in that capacity? And if I push it's memory to its max (2GB), how many routes, then? I need a machine capable of keep in touch with the growing internet table for the next 2-3 years.
And, by the way, as far as I know, this router, as many others, has not the table limitations that other platforms have due to the max FIB or TCAM entries. Can anyone explain me why? Why, I presume, the max number of table entries in the 7201 is limited only by the DRAM you put in, and in a 7600 or 6500 is hardwired and not depends on that same DRAM?
Thank you very much
We run a 7206 with an NPE-G2, which is exactly what the 7201 is based on. It has two copies of the full BGP routes, and two others that add up to 1/2 of a full table. It is using about 300 MB of the Gig.
I think it will be good to go for many years to come. This is an extremely capable box.