Why would you use GLBP over HSRP and VRRP?
A.
GLBP is an open standard protocol.
B.
GLBP uses a virtual IP address, whereas HSRP and VRRP must have a static default gateway on each host.
C.
GLBP provides true load-balancing within a single subnet.
D.
GLBP is easily configured and propagated by DHCP to clients.
E.
There is no reason to choose GLBP.