Discover the two crucial advantages of upgrading Cisco foreign and anchor controllers to version 8.10 or later for optimizing guest client load balancing across multiple anchor controllers in a wireless network design.
Table of Contents
Question
A company installs a new anchor controller in the DMZ. The company has not upgraded the foreign controller for several years. The foreign controller runs code 7.5. The IT administrator suggests that the company upgrade the foreign controller and the new anchor controller to 8.10 or later. Which two benefits must be incorporated into the design regarding the code upgrade? (Choose two.)
A. The foreign controller load balances guest clients across the list of anchor controllers
B. Guest clients are load balanced in round-robin fashion among the anchor controllers.
C. User devices must upgrade their WLAN card drivers.
D. Guest clients are tunneled to anchors with the highest priority.
E. The foreign controller designates one anchor as primary and one or more anchors as secondary.
Answer
D. Guest clients are tunneled to anchors with the highest priority.
E. The foreign controller designates one anchor as primary and one or more anchors as secondary.
Explanation
When upgrading the foreign controller and the new anchor controller to Cisco code version 8.10 or later, two key benefits must be incorporated into the wireless network design regarding guest client load balancing:
- The foreign controller load balances guest clients across the list of anchor controllers (A): With the upgrade to 8.10 or later, the foreign controller gains the ability to distribute guest client traffic across multiple anchor controllers. This load balancing feature ensures that guest clients are evenly distributed among the available anchor controllers, preventing any single anchor from becoming overloaded and enhancing the overall performance and stability of the guest network.
- Guest clients are load balanced in round-robin fashion among the anchor controllers (B): The upgrade to 8.10 or later introduces a round-robin load balancing mechanism for guest clients. This means that the foreign controller assigns each new guest client to the next anchor controller in the list, cycling through the anchors in a sequential manner. The round-robin approach guarantees a fair distribution of guest clients across the anchor controllers, optimizing resource utilization and providing a consistent user experience.
It is important to note that upgrading the WLAN card drivers on user devices (C) is not a direct benefit of the controller code upgrade. Additionally, while the foreign controller can prioritize anchor controllers, it does not necessarily tunnel guest clients to anchors with the highest priority (D) or designate one anchor as primary and others as secondary (E) as part of the load balancing process.
By upgrading the foreign controller and the new anchor controller to Cisco code version 8.10 or later, the company can take advantage of advanced load balancing features that evenly distribute guest clients across multiple anchor controllers using a round-robin approach. This optimization enhances the performance, reliability, and scalability of the guest wireless network.
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