300-410 Question 280
Select 3A network administrator has configured IP SLA to monitor the performance between a branch office router and a central data center router. The administrator notices intermittent delay issues and wants to troubleshoot further. Which of the following steps should the administrator take to identify the root cause using IP SLA?
- A
Verify the configured IP SLA operation type and ensure jitter measurements are enabled.
- B
Check the IP SLA responder configuration on the remote router to ensure it is operational.
- C
Use the 'show ip sla statistics' command to analyze real-time delay, jitter, and packet loss data.
- D
Modify the IP SLA operation frequency to 1 second to capture more granular data.
- E
Enable SNMP traps for IP SLA to generate immediate alerts for performance threshold violations.
Show answer and explanation
Correct answers: A, B, C
Explanation
To troubleshoot network performance issues using IP SLA, it is important to verify that the correct operation type is configured and the responder is functioning. Real-time statistics from the 'show ip sla statistics' command provide key insights into delay, jitter, and packet loss, which are critical for identifying the root cause of performance issues. Adjusting operational frequency or enabling SNMP traps are secondary steps and not immediately necessary for the initial troubleshooting process.
- A. Correct.
This is correct. Verifying the IP SLA operation type is essential to ensure that jitter measurements are enabled and being collected for troubleshooting delay and performance issues.
- B. Correct.
This is correct. The IP SLA responder on the remote router must be operational for accurate measurements. Without it, the results might not reflect actual network performance.
- C. Correct.
This is correct. The 'show ip sla statistics' command provides real-time insights into delay, jitter, and other metrics, helping identify where the performance issue might be.
- D. Incorrect.
This is incorrect. While reducing the operation frequency can provide more data points, it can also increase CPU usage and is not the first step in troubleshooting.
- E. Incorrect.
This is incorrect. Enabling SNMP traps is useful for alerting but does not directly assist in identifying the root cause of the issue.