Contents
xviii
Catalyst 2950 and Catalyst 2955 Switch Software Configuration Guide
78-11380-10
CHAPTER
19 Configuring Voice VLAN 19-1
Understanding Voice VLAN 19-1
Configuring Voice VLAN 19-2
Default Voice VLAN Configuration 19-2
Voice VLAN Configuration Guidelines 19-3
Configuring a Port to Connect to a Cisco 7960 IP Phone 19-3
Configuring Ports to Carry Voice Traffic in 802.1Q Frames 19-4
Configuring Ports to Carry Voice Traffic in 802.1p Priority-Tagged Frames 19-4
Overriding the CoS Priority of Incoming Data Frames 19-5
Configuring the IP Phone to Trust the CoS Priority of Incoming Data Frames 19-6
Displaying Voice VLAN 19-6
CHAPTER
20 Configuring DHCP Features 20-1
Understanding DHCP Features 20-1
DHCP Server 20-2
DHCP Relay Agent 20-2
DHCP Snooping 20-2
Option-82 Data Insertion 20-3
Configuring DHCP Features 20-5
Default DHCP Configuration 20-5
DHCP Snooping Configuration Guidelines 20-6
Configuring the DHCP Server 20-6
Enabling DHCP Snooping and Option 82 20-7
Displaying DHCP Information 20-8
Displaying a Binding Table 20-8
Displaying the DHCP Snooping Configuration 20-8
CHAPTER
21 Configuring IGMP Snooping and MVR 21-1
Understanding IGMP Snooping 21-1
IGMP Versions 21-2
Joining a Multicast Group 21-3
Leaving a Multicast Group 21-4
Immediate-Leave Processing 21-5
IGMP Report Suppression 21-5
Source-Only Networks 21-5
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