The provoke chain guide.
you, along with another knight with max provoke, work together to infinitely keep monsters aggroed to you both, making it easier for the rest of your party to attack those monsters.
first and foremost, lets look at the actual skill, provoke:
Provocation; bless skill
aggro range: 80
aggro duration: 13 seconds
slow duration: 15 seconds
slow %: 19%
cooldown: 25 seconds
note: the range of aggro is a FULL circle around you.
so basically, from the moment you use provoke, monsters affected will be aggroed to you for 13 seconds.
the idea of a 'voke chain is when you use it, on the 12th second, the other knight will use his provoke. (a good way to find out when your aggro is going to wear off is when your cooldown on provoke is halfway)
make sure you call out your 'vokes so that the entire party knows, a majority of knights use F, 3, 1 ( go forward!) when they use it, and when the aggro wears off, F, 3, 2 (step back!)
also, make sure that if there are any other knights in your party, that they know not to use their provoke unless for some reason the chain is broken (cancel, lag, etc), i usually use F 2, 5 (attract their attention) to let that 3rd knight know to pick up the aggro, then when the 2nd knight's voke is ready, you can pick up the aggro off of him, and the chain starts over.
this is just the gist of it, this will be updated as much as possible.