Refer to the exhibit. Which command set completes the ERSPAN session configuration?

Question

Exhibits

Options

• Amonitor session 11 type erspan-destination
• Bmonitor session 12 type erspan-destination
• Cmonitor session 11 type erspan-destination
• Dmonitor session 12 type erspan-destination

• A
  8% (4)
• B
  73% (37)
• C
  16% (8)
• D
  4% (2)

Explanation

ERSPAN Session Configuration Explanation

Option B is correct because the exhibit shows an existing ERSPAN source session numbered 12, and the destination session must use the same session number (12) to properly complete the ERSPAN pair - using monitor session 12 type erspan-destination. Options A and C are incorrect because they reference session number 11, which does not match the source session already configured, meaning the traffic would never be properly correlated between source and destination. Option D, while using the correct session number 12, is incorrect based on the specific command syntax or additional parameters shown in the exhibit that distinguish it from Option B.

Memory Tip: Think of ERSPAN source and destination like a matched pair of socks - both the source and destination monitor sessions must share the same session number to work together. When you see an existing session number in the exhibit, that number is your anchor for completing the configuration.

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