Cisco 300 Series User Manual

MLD Snooping Commands
OL-32830-01 Command Line Interface Reference Guide 712
34
34.9 ipv6 mld snooping vlan forbidden
mrouter
To forbid a port from being defined as a Multicast router port by static
configuration or by automatic learning, use the ipv6 mld snooping vlan forbidden
mrouter command in Global Configuration mode. To return to the default, use the
no form of this command.
Syntax
ipv6 mld snooping
vlan vlan-id forbidden mrouter interface interface-list
no ipv6 mld snooping vlan vlan-id forbidden mrouter interface interface-list
Parameters
• vlan-id —Specifies the VLAN.
• interface-list —Specifies list of interfaces. The interfaces can be of one of
the following types: Ethernet port or Port-channel.
Default Configuration
No forbidden ports by default
Command Mode
Global Configuration mode
User Guidelines
A port that is forbidden to be defined as a Multicast router port (mrouter port)
cannot be learned dynamically or assigned statically.
The bridge multicast forward-all command was used in older versions to forbid
dynamic learning of Multicast router ports.
You can execute the command before the VLAN is created.
Example
switchxxxxxx(config)# ipv6 mld snooping vlan 1 forbidden mrouter interface
gi1
1

Cisco 300 Series Specifications

General

Model	Cisco 300 Series
Category	Switch
Dimensions	Varies by model
Weight	Varies by model
Power over Ethernet (PoE)	Available on select models
Management	Web-based GUI, SNMP, CLI
VLANs	Up to 256
Security Features	ACLs, 802.1X, Port Security
Humidity	10% to 90% non-condensing
Ports	8, 16, 24, 48