Ethernet priority flow control, Enabling ethernet pfc – Brocade Network OS NETCONF Operations Guide v4.1.1 User Manual

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Network OS NETCONF Operations Guide

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Congestion control

29

Ethernet Priority Flow Control

This section provides procedures for configuring Ethernet Priority-based Flow Control (PFC) for
congestion control.

Enabling Ethernet PFC

To enable Ethernet PFC, perform the following steps.

1. Issue the <edit-config> RPC to configure the <interface> node in the

urn:brocade.com:mgmt:brocade-interface namespace.

2. Under the <interface> node, include the <gigabitethernet>, <tengigabitethernet>,

<fortygigabitethernet>, <hundredgigabitethernet>, or <port-channel> node element.

3. Under the <gigabitethernet>, <tengigabitethernet>, <fortygigabitethernet>,

<hundredgigabitethernet>, or <port-channel> node, include the <name> leaf element and set
its value to the name of the interface for which you want to enable Ethernet PFC
([rbridge-id/]slot/port format or port channel number).

4. Under the <gigabitethernet>, <tengigabitethernet>, <fortygigabitethernet>,

<hundredgigabitethernet>, or <port-channel> node, include the <qos> node element from the
urn:brocade.com:mgmt:brocade-qos namespace.

5. Under the <qos> node, include the <flowcontrol>/<pfc> node element hierarchy.

6. Under the <pfc> node, include the following leaf elements.

a. In the <pfc-cos> element, specify the CoS value.

b. In the <pfc-flowcontrol-rx> element, specify “on” to enable Ethernet PFC for the receive

direction.

c. In the <pfc-flowcontrol-tx> element, specify “on” to enable Ethernet PFC for the transmit

direction.

7. Issue the <bna-config-cmd> RPC to save the running-config file to the startup-config file.

The following example enables Ethernet PFC for CoS 3 on 10-gigabit Ethernet interface 22/0/1.

<?xml version="1.0" encoding="UTF-8"?>

<rpc message-id="2331" xmlns="urn:ietf:params:xml:ns:netconf:base:1.0">

<edit-config>

<target>

<running/>

</target>

<config>

<interface xmlns="urn:brocade.com:mgmt:brocade-interface">

<tengigabitethernet>

<name>22/0/1</name>

<qos xmlns="urn:brocade.com:mgmt:brocade-qos">

<flowcontrol>

<pfc>

<pfc-cos>3</pfc-cos>

<pfc-flowconftrol-tx>on</pfc-flowcontrol-tx>

<pfc-flowconftrol-rx>on</pfc-flowcontrol-rx>

</pfc>

</flowcontrol>

</qos>

</tengigabitethernet>

</interface>

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