Refer to exhibits 1 and 2. In exhibit 1, all users on the LAN segment use router A as the active
HSRP router. Router B is the standby router for the HSRP. In exhibit 2, the network management
team reported that there is no utilization on the WAN link B. To solve this problem, you decide to
change the logical topology of your LAN, but you are not sure about what changes must be made.
You must manage HSRP or change it to another protocol in order to provide the most scalable
design, automatic redundancy, and load balancing. Which one of these actions would be the best
choice?
A.
Use MHSRP, with three users using router A as the default gateway and three users using
router B as the default gateway.
B.
Keep HSRP and activate PBR to redirect half of the traffic to the other WAN link.
C.
Use the backup interface on the WAN link B to provide load balancing for all users.
D.
Use GLBP instead, because it provides you with up to three MAC addresses for the same
default gateway virtual IP address.
E.
Use GLBP instead, because it provides you with up to four MAC addresses for the same default
gateway virtual IP address.
Explanation:
In HSRP and VRRP, only the primary router is used to forward traffic, others routers must wait for
the primary one down before they are used. Also, the bandwidth of the standby (and other) routers
are not used and wasted. With GLBP, up to four gateways can be used simultaneously. There is
still one virtual IP address in a group, but GLBP can automatically select which router in the group
to forward traffic by sending the virtual MAC address of a selected router to that host.