TX Only Ports

Overview

A tx_only port is a DPDK port used only for egress traffic.

The port initializes TX queues and starts normally. It has no RX queues, lcore assignment, or processing pipeline and acts exclusively as a forwarding sink: It is used only for egress traffic.The port never polled for incoming packets.

Restrictions

• Available only in DC mode.

• Boot time configurable - Changing tx_only_ports requires a restart.

• At least one processing port must remain

• Do not enable other port features. The port does not process any incoming traffic.

• Do not add the port to a Port Traffic Aggregation group.