Configuring Flexible NetFlow Supported Flexible NetFlow Fields Field Layer 2 In Layer 2 Out IPv4 In IP v4 Out IPv6 In IPv6 Out Notes Interface output — Yes — Yes — Yes If you apply a flow monitor in the output direction: • Use the match keyword and use the output interface as a key field. • Use the collect keyword and use the input interface as a collect field. This field will be present in the exported records but with a value of 0. Field Layer 2 In Layer 2 Out IPv4 In IP v4 Out IPv6 In IPv6 Out Notes Key Fields Flow direction Yes Yes Yes Yes Yes Yes Ethertype Yes Yes — — — — VLAN input Yes — Yes — Yes — Supported only for a switch port.
VLAN output — Yes — Yes — Yes Supported only for a switch port. dot1q VLAN input Yes — Yes — Yes — Supported only for a switch port. dot1q VLAN output — Yes — Yes — Yes Supported only for a switch port. dot1q priority Yes Yes Yes Yes Yes Yes Supported only for a switch port. MAC source address input Yes Yes Yes Yes Yes Yes Configuring Flexible NetFlow 15