H Commands

This chapter describes the Cisco NX-OS IGMP snooping commands that begin with H.

hardware multicast snooping group-limit

To configure the number of groups learned through IGMP Snooping, use the hardware multicast snooping group-limit command.

hardware multicast snooping group-limit limit

 
Syntax Description

limit

Number of groups learned through IGMP Snooping. The range is from 100 to 16000.

 
Command Default

None

 
Command Modes

Any command mode

 
Supported User Roles

network-admin
network-operator
vdc-admin
vdc-operator

 
Command History

Release
Modification

6.0(2)N1(1)

This command was introduced.

 
Usage Guidelines

Before setting a new group-limit, you must either clear the MAC address table or clear the groups already learned if the existing group limit is already exceeded. There is no need to clear the MAC address table or clear the groups if existing group limit is not exceeded.

The unique OIFL (output interface list) combinations can only be 2000.

Use the vPC type-2 inconsistency to show the configuraitons on vPC peers.

A reload is not neccessary after configuring the group-limit.

This command does not require a license.

Examples

This example shows how to set the maximum number of groups to 500:

switch(config)# hardware multicast snooping group-limit 500
switch(config)#
 

 
Related Commands

Command
Description

show ip igmp snooping groups

Displays information about the group membership for IGMP snooping.

 
Usage Guidelines

This command does not require a license.

Examples

This example shows how to clear the explicit tracking information for VLAN 1:

switch# clear ip igmp snooping explicit-tracking vlan 1
switch#

 
Related Commands

Command
Description

show ip igmp snooping explicit-tracking vlan

Displays explicit host tracking information for IGMPv3.