Troubleshooting
Problem
VN-Tags are an additional extension to VLAN tagging to identify virtual interfaces. While existing VLAN tags are supported by QFlow collectors when monitoring packet traffic, VN-Tags are currently not supported. QRadar QFlow collectors ignore and drop packets marked as VN-Tags.
Symptom
Packet data sent to span ports or taps that are being monitored by IBM QFlow collectors are not recognized and the packet data is simply dropped by QRadar.
Note: The packet data is still likely to show up properly in tcpdump.
[{"Product":{"code":"SSBQAC","label":"IBM Security QRadar SIEM"},"Business Unit":{"code":"BU048","label":"IBM Software"},"Component":"Flows","Platform":[{"code":"PF016","label":"Linux"},{"code":"PF033","label":"Windows"}],"Version":"7.1;7.2","Edition":"All Editions","Line of Business":{"code":"LOB77","label":"Automation Platform"}}]
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Document Information
Modified date:
16 June 2018
UID
swg21666276