Brocade Network OS NETCONF Operations Guide v4.1.1 Uživatelský manuál stáhnout pdf (Strana 477)

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Network OS NETCONF Operations Guide 445

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Congestion control

For conceptual information about the various congestion control methods supported in Network

OS, including IEEE 802.3x Ethernet Pause, Tail Drop, and Ethernet Priority Flow Control (PFC), refer

to the Network OS Administrator’s Guide.

Tail drop

This section provides procedures for configuring tail drop congestion control.

Changing the multicast tail drop threshold

To change the Tail Drop threshold, perform the following steps.

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

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

2. Under the <qos> node, include the <rcv-queue>/<multicast>/<threshold> hierarchy of node

elements.

3. Under the <threshold> node, include a <traffic-classn> element for each class of traffic, and

assign each traffic class a Tail Drop threshold value.

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

The following example sets the threshold value for each traffic class to 1000. When this limit is

reached for a given traffic class, newly arriving frames for that class are dropped.

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

<edit-config>

</target>

<rcv-queue>

<traffic-class0>1000</traffic-class0>

<traffic-class1>1000</traffic-class1>

<traffic-class2>1000</traffic-class2>

<traffic-class3>1000</traffic-class3>

<traffic-class4>1000</traffic-class4>

<traffic-class5>1000</traffic-class5>

<traffic-class6>1000</traffic-class6>

<traffic-class7>1000</traffic-class7>

</threshold>

</multicast>

</rcv-queue>

</qos>

</config>

</edit-config>

</rpc>

<rpc-reply message-id="2326" xmlns="urn:ietf:params:xml:ns:netconf:base:1.0">

<ok/>

</rpc-reply>

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