2012
from : http://www.gartner.com/technology/reprints.do?id=1-18BC075&ct=111213&st=sb
Juniper , Cisco and F5 network are leader in this market. Checkpoint is in the visionaries quadrant.
2011
Major players are not having too much difference from 2010. F5 was able to make it into leaders Quadrant in 2011.
2008
On 2008, Juniper, Citrix and F5 were in the learders quadrant, but Checkpoint was only in niche players.
