I have a very typical issue
I want to undersdtand if a Cisco 2821 with 1 Gb DRAM can absorb the whole Internet routing table ,though i understand it wud'nt be an optimum solution and any supporting documents if available
I haven't a link for this.
Probably an official Cisco answer wouldn't recommend to use a C2821 for handling a full BGP table.
If I remember correctly someone has reported to doing this here in the forums.
The only doubts are about the cpu average usage caused by the BGP process: memory will be enough.
Some tuning of BGP scanner frequency can be needed in order to reduce CPU usage
And of course only if you are receiving a single BGP full internet table and no more.
Hope to help