Board with 4000 forums, 1 million page view per day

[funfun168]

this is the reply from other board web site
"I understand the issue and the main problem you will have is the forum cache. All forum and moderator information is cached in the main cache and so even if you do segment the forum listings up the cache will still be carried around.

To successfully implement this you would need to have a small mod to allow for certain forums to 'belong' to a certain city. This way you can just have at the top index.php?city=london (for example) and that will show all forums for London (plus maybe some global forums such as Announcements and General Chat.

Then you will need to assign a forum cache for each city. Not amazingly hard as you would just have a ACP feature to make a city and once the city is added it also creates an extra DB row for that forum city cache. You would then need to mod the index.php to make sure the cache isnt pulled globally but for each city (dependant on the city you are viewing)."

Can I do this in vbulletin?