Avaya P580 User Manual

Page 14

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Avaya P550R, P580, P880, and P882 Multiservice Switch User Guide, v5.3.1

Removing a Fabric Mode 2 Port Mirror . . . . . . . . . . . . . . 19-19
Viewing Information about a Fabric Mode 2 Port Mirror . 19-20
Setting Up a Port Mirror by Using SNMP . . . . . . . . . . . . . 19-21

Enabling MAC Address Lock and Traps for Unknown Source Addresses
19-23

Chapter 20 — Managing Buffers and Queues on 50-Series Modules
20-1

Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20-1
How Queues Work . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20-1

Managing Buffers and Queues . . . . . . . . . . . . . . . . . . . . . . 20-2

Chapter 21 — 80-Series QoS . . . . . . . . . . . . . . . . . . . . . . . . . . . 21-1

Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21-1
Why implement QoS? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21-2
How Does QoS Work? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21-3

QoS Process for Ingress Traffic. . . . . . . . . . . . . . . . . . . . . . . 21-3
QoS Process for Egress Traffic . . . . . . . . . . . . . . . . . . . . . . . 21-4
Diagram of QoS Process. . . . . . . . . . . . . . . . . . . . . . . . . . . . 21-6

Classification of Traffic . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21-7

Default Priority . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21-7
Classifying Traffic by Layer 2 Characteristics. . . . . . . . . . . . 21-8
Classifying Traffic by Layer 3 or Layer 4 Characteristics . . . 21-8
Diffserv . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21-10
Precedence of Priorities . . . . . . . . . . . . . . . . . . . . . . . . . . . 21-11
Supported Number of Queues. . . . . . . . . . . . . . . . . . . . . . 21-12
Setting the Priority of a Physical Port . . . . . . . . . . . . . . . . 21-13
Setting a Physical Port to Ignore Tag Priority . . . . . . . . . . 21-14
Setting the Priority of a MAC Address . . . . . . . . . . . . . . . 21-16
Displaying the Priority of a MAC Address . . . . . . . . . . . . . 21-18
Setting a Physical Port to Use DiffServ . . . . . . . . . . . . . . . 21-19
Setting a Physical Port to Mask DiffServ Bits . . . . . . . . . . 21-20
Assigning a Priority to a DSCP. . . . . . . . . . . . . . . . . . . . . . 21-21
Displaying the DiffServ Table . . . . . . . . . . . . . . . . . . . . . . 21-22
Displaying the QoS Settings for a Physical Port. . . . . . . . . 21-22
Setting Up an ACL Rule. . . . . . . . . . . . . . . . . . . . . . . . . . . 21-23
Setting Up a Default ACL Rule . . . . . . . . . . . . . . . . . . . . . 21-30
Displaying ACL Rules . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21-31

Ingress Policing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21-31

Setting Up Policing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21-32
Displaying the Policing Settings. . . . . . . . . . . . . . . . . . . . . 21-34

Queue-Servicing Algorithms . . . . . . . . . . . . . . . . . . . . . . . . . . 21-35

WFQ . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21-35
Strict Priority Queueing. . . . . . . . . . . . . . . . . . . . . . . . . . . 21-36
CBQ . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21-37
CBWFQ . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21-37
Management Traffic . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21-38

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