Users Guide

Table Of Contents
Contents 33
Topology Change Notification. . . . . . . . . . . . . 1039
Protection Switching Triggers
. . . . . . . . . . . . 1039
Ring Failure Detection
. . . . . . . . . . . . . . . . . 1040
Ring Protection Example
. . . . . . . . . . . . . . . 1040
27 Snooping and Inspecting Traffic. . . . . 1043
Traffic Snooping and Inspection Overview . . . . . . 1043
What Is DHCP Snooping?
. . . . . . . . . . . . . 1044
How Is the DHCP Snooping Bindings Database
Populated? . . . . . . . . . . . . . . . . . . . . 1045
What Is IP Source Guard?
. . . . . . . . . . . . 1048
What is Dynamic ARP Inspection?
. . . . . . . . 1049
Why Is Traffic Snooping and Inspection
Necessary?
. . . . . . . . . . . . . . . . . . . . 1050
Default Traffic Snooping and Inspection Values
. . . 1050
Configuring Traffic Snooping and Inspection (Web)
. 1052
DHCP Snooping Configuration
. . . . . . . . . . 1052
DHCP Snooping Interface Configuration
. . . . . 1053
DHCP Snooping VLAN Configuration
. . . . . . . 1055
DHCP Snooping Persistent Configuration
. . . . 1056
DHCP Snooping Static Bindings Configuration
. 1057
DHCP Snooping Dynamic Bindings Summary
. . 1058
DHCP Snooping Statistics
. . . . . . . . . . . . 1059
IPSG Interface Configuration
. . . . . . . . . . . 1060
IPSG Binding Configuration
. . . . . . . . . . . 1060
IPSG Binding Summary
. . . . . . . . . . . . . . 1061
DAI Global Configuration
. . . . . . . . . . . . . 1062
DAI Interface Configuration
. . . . . . . . . . . 1063
DAI VLAN Configuration
. . . . . . . . . . . . . 1065
DAI ACL Configuration
. . . . . . . . . . . . . . 1066