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N9K capture traffic sent to loopback interface

Hi,

I have an N9K that we use a loopback interface on for monitoring tools. A number of these tools use SNMP to poll this loopback IP address. At times, the SNMP GET RESPONSE will take more than 5 minutes to show up (typical average is around 2 seconds). This is seen in packet capture of traffic to/from the tool IP addresses. What I would like to see is if there is some other traffic pounding the loopback interface such that it slows down SNMP GET RESPONSEs. The loopback interface is not a valid source interface in SPAN on the N9K. So is there another way to see all the traffic to/from the loopback?

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