The ip netstream tcp-flag enable command configures the aging of NetStream traffic according to the FIN flag or the RST flag in the TCP packet header.
The undo ip netstream tcp-flag enable command restores the default setting.
By default, NetStream flows are not aged according to the FIN or RST flag in the TCP packet header.
Usage Scenario
The FIN or RST flag in a TCP packet indicates that the TCP connection is terminated. When receiving a packet with the FIN or RST flag, the device immediately ages the corresponding NetStream flow. If the ip netstream tcp-flag enable command is not run, NetStream flows are aged by following other criteria, for example, inactive aging time or bytes overflow.
Precautions
If you set multiple aging modes on the device, a flow is aged when it matches any criterion.
Only original flows can be aged according to the FIN or RST flag in the TCP packet header.