IGMP F
ILTERING
AND
T
HROTTLING
C
OMMANDS
4-247
ip igmp max-groups
This command sets the IGMP throttling number for an interface on the
switch. Use the
no
form to restore the default setting.
Syntax
ip igmp max-groups
number
no ip igmp max-groups
•
number
- The maximum number of multicast groups an interface can
join at the same time.
Default Setting
64
Command Mode
Interface Configuration
Command Usage
• IGMP throttling sets a maximum number of multicast groups that a
port can join at the same time. When the maximum number of groups
is reached on a port, the switch can take one of two actions; either
“deny” or “replace.” If the action is set to deny, any new IGMP join
reports will be dropped. If the action is set to replace, the switch
randomly removes an existing group and replaces it with the new
multicast group.
• IGMP throttling can also be set on a trunk interface. When ports are
configured as trunk members, the trunk uses the throttling settings of
the first port member in the trunk.
Example
Console(config)#interface ethernet 1/1
Console(config-if)#ip igmp max-groups 10
Console(config-if)#
Summary of Contents for 6128L2
Page 2: ......
Page 21: ...CONTENTS xvii Glossary Index ...
Page 22: ...CONTENTS xviii ...
Page 26: ...TABLES xxii ...
Page 40: ...INTRODUCTION 1 10 ...
Page 54: ...INITIAL CONFIGURATION 2 14 ...
Page 193: ...PORT CONFIGURATION 3 139 Figure 3 61 Displaying Etherlike and RMON Statistics ...
Page 257: ...QUALITY OF SERVICE 3 203 Figure 3 90 Configuring Policy Maps ...
Page 313: ...COMMAND GROUPS 4 13 PE Privileged Exec VC VLAN Database Configuration ...
Page 592: ...TROUBLESHOOTING B 4 ...
Page 605: ......