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Changing Control Packet Classification Using the Mangle Table

The NorthStar application uses default classification for control packets. To support a different packet classification, you can use Linux firewall iptables to reclassify packets to a different priority.

The following sample configuration snippets show how to modify the ToS bits using the mangle table, changing DSCP values to cs6.

Zookeeper:

Cassandra database:

RabbitMQ:

NTAD:

PCEP protocol:

ICMP packets used by ha_agent (replace the variable NET-SUBNET with your configured network subnet):

To verify that the class of service setting matches best effort, use the following command on the NorthStar server:

To verify that the class of service setting matches cs6, use the following command on the NorthStar server: