300-420 Question 275
Select 3An enterprise network is experiencing delays in its network management traffic, which is impacting the ability to monitor and troubleshoot the network in real-time. To address this issue, the network design team decides to prioritize network management traffic. Which of the following actions should be included in the design to ensure effective prioritization?
- A
Mark network management traffic with a higher QoS value, such as DSCP CS6 or CS7, to ensure it is prioritized over regular data traffic.
- B
Use a dedicated network management VLAN to isolate management traffic from production traffic.
- C
Configure bandwidth guarantees for network management traffic within QoS policies to prevent starvation during congestion.
- D
Disable network management traffic during peak hours to reduce the load on the network.
- E
Implement rate limiting on network management traffic to ensure it never exceeds a predetermined bandwidth threshold.
Show answer and explanation
Correct answers: A, B, C
Explanation
Prioritizing network management traffic is crucial for effective monitoring and troubleshooting in an enterprise network. Best practices include marking the traffic with an appropriate QoS value (such as DSCP CS6 or CS7), isolating it using a dedicated VLAN, and configuring bandwidth guarantees within QoS policies. These measures ensure that management traffic is prioritized and protected from congestion or delays caused by other data traffic. Disabling or rate limiting network management traffic would hinder its functionality and are not considered effective strategies for prioritization.
- A. Correct.
Marking network management traffic with a higher QoS value ensures it is treated with higher priority by network devices, reducing latency and delays.
- B. Correct.
Using a dedicated VLAN isolates network management traffic from production traffic, preventing interference and ensuring better performance for monitoring and troubleshooting.
- C. Correct.
Configuring bandwidth guarantees within QoS policies ensures that network management traffic has dedicated bandwidth during congestion and avoids starvation.
- D. Incorrect.
Disabling network management traffic during peak hours would negatively impact the ability to monitor and troubleshoot the network in real-time, and is not a best practice.
- E. Incorrect.
Rate limiting network management traffic could restrict its ability to function effectively during high-demand scenarios, and is not typically recommended for prioritization.