Which option is a characteristic of the Enhanced Location Call Admission Control mechanism on Cisco Unified Communications Manager?
Click on the arrows to vote for the correct answerA. B. C. D. E.
Network Modeling with Locations, Links, and Weights Enhanced Location CAC is a model-based static CAC mechanism.
Enhanced Location CAC involves using the administration interface in Unified CM to configure Locations and Links to model the "Routed WAN Network" in an attempt to represent how the WAN network topology routes media between groups of endpoints for end-to-end audio, video, and immersive calls.
Although Unified CM provides configuration and serviceability interfaces in order to model the network, it is still a "static" CAC mechanism that does not take into account network failures and network protocol rerouting.
Therefore, the model needs to be updated when the WAN network topology changes.
Enhanced Location CAC is also call oriented, and bandwidth deductions are per-call not per-stream, so asymmetric media flows where the bit-rate is higher in one direction than in the other will always deduct for the highest bit rate.
In addition, unidirectional media flows will be deducted
as if they were bidirectional media flows References: http://www.cisco.com/c/en/us/td/docs/voice_ip_comm/cucm/srnd/collab10/collab10/cac.html.
Enhanced Location Call Admission Control (CAC) is a feature of Cisco Unified Communications Manager (CUCM) that enables administrators to control the number of calls that can be placed on a particular network segment or location based on available bandwidth and other network conditions. This helps to prevent oversubscription and ensures that call quality is maintained.
Out of the options provided, option C is the characteristic of Enhanced Location CAC. The following is a detailed explanation of this option:
C. It supports dynamic bandwidth adjustments based on WAN topology changes.
Enhanced Location CAC supports dynamic bandwidth adjustments based on WAN topology changes. This means that if there are changes in the network topology, such as the addition or removal of a network link, the CAC mechanism will automatically adjust the available bandwidth for call admission control purposes. For example, if a network link fails, Enhanced Location CAC can reduce the available bandwidth for calls passing through that link, ensuring that the remaining bandwidth is sufficient to maintain call quality. Similarly, if a new network link is added, Enhanced Location CAC can increase the available bandwidth for calls passing through that link.
In summary, Enhanced Location CAC in CUCM provides administrators with the ability to control the number of calls that can be placed on a particular network segment or location based on available bandwidth and other network conditions. It supports dynamic bandwidth adjustments based on WAN topology changes, which helps to ensure that call quality is maintained even in the event of network changes or failures.