Which configuration component in Cisco Unified Communications Manager Enhanced Location Call Admission Control is designated to participate directly in intercluster replication of location, links, and bandwidth allocation data?
Click on the arrows to vote for the correct answer
A. B. C. D. E.B.
A Location Bandwidth Manager (LBM) service that has been designated to participate directly in intercluster replication of fixed locations, links data, and dynamic bandwidth allocation data.
LBMs assigned to an LBM hub group discover each other through their common connections and form a fully-meshed intercluster replication network.
Other LBM services in a cluster with an LBM hub participate indirectly in intercluster replication through the LBM hubs in their cluster.
In Cisco Unified Communications Manager (CUCM), Enhanced Location Call Admission Control (ELCAC) is a feature that allows the administrator to control call admission to the network based on the available bandwidth and location of the devices involved in the call. In a distributed CUCM deployment with multiple clusters, the location, links, and bandwidth allocation data must be replicated between the clusters to ensure that the call admission control is consistent across the network.
To achieve this, CUCM uses Location Bandwidth Manager (LBM) Groups and Hub Groups. A Location Bandwidth Manager Group is a set of CUCM nodes that are responsible for managing the location, links, and bandwidth allocation data for a particular set of devices. A Hub Group is a set of LBM Groups that are interconnected through a hub CUCM node, which acts as a central point for intercluster replication.
The answer to the question is B. a member of a Location Bandwidth Manager Hub Group. The reason for this is that a member of a Hub Group is the CUCM node that participates directly in the intercluster replication of location, links, and bandwidth allocation data. The other options, such as an active member, a standby member, or all members of an LBM Group, do play a role in managing the data, but they do not directly participate in intercluster replication. A shadow member of an LBM Hub Group is not a valid concept in CUCM.
In summary, to ensure consistent call admission control across a distributed CUCM deployment, the location, links, and bandwidth allocation data must be replicated between the clusters. This is achieved using Location Bandwidth Manager Groups and Hub Groups, with a member of a Hub Group designated to participate directly in intercluster replication.