Specifications

Contents
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Catalyst 2970 Switch Software Configuration Guide
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Configuring Optional Spanning-Tree Features 16-9
Default Optional Spanning-Tree Configuration 16-9
Optional Spanning-Tree Configuration Guidelines 16-9
Enabling Port Fast 16-10
Enabling BPDU Guard 16-11
Enabling BPDU Filtering 16-12
Enabling UplinkFast for Use with Redundant Links 16-13
Enabling BackboneFast 16-13
Enabling Root Guard 16-14
Enabling Loop Guard 16-15
Displaying the Spanning-Tree Status 16-16
CHAPTER 17 Configuring DHCP Features 17-1
Understanding DHCP Features 17-1
DHCP Snooping 17-1
Option-82 Data Insertion 17-2
Configuring DHCP Features 17-3
Default DHCP Configuration 17-3
DHCP Snooping Configuration Guidelines 17-3
Enabling DHCP Snooping and Option 82 17-4
Displaying DHCP Information 17-5
Displaying a Binding Table 17-5
Displaying the DHCP Snooping Configuration 17-5
CHAPTER 18 Configuring IGMP Snooping and MVR 18-1
Understanding IGMP Snooping 18-2
IGMP Versions 18-3
Joining a Multicast Group 18-3
Leaving a Multicast Group 18-5
Immediate-Leave Processing 18-6
IGMP Report Suppression 18-6
Configuring IGMP Snooping 18-6
Default IGMP Snooping Configuration 18-7
Enabling or Disabling IGMP Snooping 18-7
Setting the Snooping Method 18-8
Configuring a Multicast Router Port 18-9
Configuring a Host Statically to Join a Group 18-10
Enabling IGMP Immediate-Leave Processing 18-10
Disabling IGMP Report Suppression 18-11