Siemens S223 Robustness Count for Igmp v2 Snooping, Enable Igmp snooping on a Vlan interface

User Manual	UMN:CLI
SURPASS hiD 6615 S223/S323 R1.5

Step 3

Enable IGMP snooping on a VLAN interface.

Command	Mode	Description
ip igmp snooping vlan VLANS	Global	Enables IGMP snooping on a VLAN interface.
		VLANS: 1-4094

Step 4

Return to Privileged EXEC Enable mode using the exit command.

To diable IGMP snooping on a VLAN interface, use the no ip igmp snooping vlan VLANS command for the specified VLAN number.

To display global IGMP, use the following command.

Command		Mode	Description
show ip igmp snooping	[vlan	Enable
		Global	Shows IGMP snooping configuration.
VLANS]
		Bridge

9.2.4.2Robustness Count for IGMP v2 Snooping

Configure the robustness variable on a VLAN basis, using the following command.

Command		Mode	Description
ip igmp snooping [vlan VLANS]	robustness-		Configures the robustness variable.
variable <1-7>
		Global
no ip igmp snooping [vlan VLANS] robustness-			Returns to the default value.
variable

9.2.5IGMP v2 Snooping

Layer 2 switches can use IGMP snooping to constrain the flooding of multicast traffic by dynamically configuring Layer 2 interfaces so that multicast traffic is forwarded to only those associated with IP multicast devices. Internet Group Management Protocol (IGMP) is the internet protocol that helps to inform multicast groups to multicast router. In the mul- ticast network, multicast router sends only IGMP query massage that quest whether re- ceive multicast packet when multicast packet is transmitted. If a switch sends the join massage to multicast router, multicast router transmits the multicast packet only to that switch.

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