Multicast filtering commands, 42 m, Ulticast – LevelOne GTL-2691 User Manual

Page 1185: Iltering, Ommands, Table 139: multicast filtering commands

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42

M

ULTICAST

F

ILTERING

C

OMMANDS

This switch uses IGMP (Internet Group Management Protocol) to check for

any attached hosts that want to receive a specific multicast service. It

identifies the ports containing hosts requesting a service and sends data

out to those ports only. It then propagates the service request up to any

neighboring multicast switch/router to ensure that it will continue to
receive the multicast service.

Note that IGMP query can be enabled globally at Layer 2, or enabled for

specific VLAN interfaces at Layer 3. (Layer 2 query is disabled if Layer 3

query is enabled.)

Table 139: Multicast Filtering Commands

Command Group

Function

IGMP Snooping

Configures multicast groups via IGMP snooping or static

assignment, sets the IGMP version, enables proxy reporting,

displays current snooping settings, and displays the multicast

service and group members

Static Multicast Routing

Configures static multicast router ports which forward all inbound

multicast traffic to the attached VLANs

IGMP Filtering and

Throttling

Configures IGMP filtering and throttling

MLD Snooping

Configures multicast snooping for IPv6

MVR for IPv4

Configures a single network-wide multicast VLAN shared by hosts

residing in other standard or private VLAN groups, preserving

security and data isolation for normal traffic

MVR for IPv6

Configures a single network-wide multicast VLAN shared by hosts

residing in other standard or private VLAN groups, preserving

security and data isolation for normal traffic

IGMP (Layer 3)

Configures the IGMP protocol used with multicast routing in IPv4

networks

IGMP Proxy Routing

Collects and sends multicast group membership information onto

the upstream interface based on IGMP messages monitored on

downstream interfaces, and forwards multicast traffic based on

that information

MLD (Layer 3)

Configures the MLD protocol used with multicast routing in IPv6

networks

MLD Proxy Routing

Collects and sends multicast group membership information onto

the upstream interface based on MLD messages monitored on

downstream interfaces, and forwards multicast traffic based on

that information

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