"Erik Amundson" <Erik.Amundson@oati.net> writes:
In my experience it depends on the model of router. I had a 3640 (granted, it's old) with 128MB that was just fine until a couple of months ago, now it's not enough. For one BGP table you will have to have at least 256MB in a 36xx router. Our 720xVXR routers currently have 256MB in them as well, but we've already ordered upgrades to 1GB with new NPE-G1s...
It helps immensely to be running pre-ST-merge 12.0 code where possible (some situations in non-trivial networks can be positively affected by post-merge code, but you're not likely to find 36xx or 720xVXRs in central locations in such networks). You are not risking your "coolness points" to still be running 12.0(21)S8. :) ---Rob