Which type of scheme describes the default operation of Gateway Load Balancing Protocol (GLBP)?

Which type of scheme describes the default operation of Gateway Load Balancing Protocol (GLBP)?

Which type of scheme describes the default operation of Gateway Load Balancing Protocol (GLBP)?

A.
per host using a round robin scheme

B.
per host using a strict priority scheme

C.
per session using a round robin scheme

D.
per session using a strict priority scheme

E.
per GLBP group using a round robin scheme

F.
per GLBP group using a strict priority scheme

Explanation:
The Gateway Load Balancing Protocol feature provides automatic router backup for IP hosts
configured with a single default gateway on an IEEE 802.3 LAN. Multiple first hop routers on
the LAN combine to offer a single virtual first hop IP router while sharing the IP packet
forwarding load. Other routers on the LAN may act as redundant GLBP routers that will
become active if any of the existing forwarding routers fail.
GLBP performs a similar, but not identical, function for the user as the HSRP and the VRRP.
HSRP and VRRP protocols allow multiple routers to participate in a virtual router group
configured with a virtual IP address. One member is elected to be the active router to
forward packets sent to the virtual IP address for the group. The other routers in the group
are redundant until the active router fails. These standby routers have unused bandwidth
that the protocol is not using. Although multiple virtual router groups can be configured for
the same set of routers, the hosts must be configured for different default gateways, which
results in an extra administrative burden. GLBP provides load balancing over multiple
routers (gateways) using a single virtual IP address and multiple virtual MAC addresses.
Each host is configured with the same virtual IP address, and all routers in the virtual router
group participate in forwarding packets. In this way, per host load balancing is achieved
using a round robin mechanism.



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