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2 maximum number of groups, 3 igmp query configuration – Siemens S223 User Manual

Page 285

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

A50010-Y3-C150-2-7619 285

IGMP cache, but the switch is not a member. Therefore it can support fast switching.

To configure IGMP static Join, use the following command.

Command Mode

Description

ip igmp static-group

A.B.C.D

vlan

VLAN port PORT reporter

A.B.C.D

Configures IGMP static join setting.
A.B.C.D: group address

no ip igmp static-group

[A.B.C.D] [vlan VLAN]

no ip igmp static-group

A.B.C.D

vlan

VLAN port PORT reporter

A.B.C.D

Global

Disables the IGMP static join configuration.

9.2.2.2

Maximum Number of Groups

Hosts on a subnet serviced by a particular interface have the access to join certain multi-
cast groups. These multicast groups can be controlled by the ip igmp access-group
command.

To control the multicast groups on an interface, use the following command.

Command Mode

Description

ip igmp access-group

{<1-99> |

WORD

}

Sets an IGMP access group.
1-99: access list number
WORD: IP named standard access list

no ip igmp access-group

Interface

Disables groups on interfaces.

9.2.2.3 IGMP

Query

Configuration

Multicast routers send host membership query messages (host query messages) to dis-
cover which multicast groups have members on the attached networks of the router.
Hosts respond with IGMP report messages indicating that they wish to receive multicast
packets for specific groups (indicating that the host wants to become a member of the
group). Host query messages are addressed to the all-hosts multicast group, which has
the address 224.0.0.1, and has an IP time-to-live (TTL) value of 1.

The designated router for a LAN is the only router that sends IGMP host query messages.
For IGMP Version 2, the designated querier is the router with the lowest IP address on
the subnet. If the router hears no queries for the timeout period, it becomes the querier.

To configure an IGMP query interval, use the following command.

Command Mode

Description

ip igmp query-interval

<1-18000>

Configures the IGMP query interval.
1-18000: frequency at which IGMP host query mes-
sages are sent (unit: second)

no ip igmp query-interval

Interface

Returns to the default value. (125)

Use this command to configure the timeout period before the router takes over as the

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