Question

A service provider engineer is configuring Flexible NetFlow on an IOS XE router to export flow records to a collector at 10.50.1.20 using UDP port 4739 in IPFIX format. The engineer has already created a flow record 'FR-INGRESS' and a flow exporter 'EXP-COLLECTOR'. Traffic must be sampled and monitored on ingress of GigabitEthernet0/0/1. Which additional configuration component MUST be created and applied to the interface to complete the flow monitoring pipeline?

Accepted Answer

A flow monitor that references the flow record and flow exporter, then applied to the interface with 'ip flow monitor <name> input'

Answer

A second flow exporter with 'transport udp 2055' applied directly to the interface

Answer

An SNMP trap host pointing to the collector so flow records can be pushed via SNMPv3

Answer

A route-map matching the collector prefix applied inbound to redirect flow data