User guide

Brocade 6910 Ethernet Access Switch Configuration Guide 447
53-1002581-01
Chapter
23Multicast Filtering Commands
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.
IGMP Snooping
This section describes commands used to configure IGMP snooping on the switch.
TABLE 103 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
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
TABLE 104 IGMP Snooping Commands
Command Function Mode
ip igmp snooping Enables IGMP snooping GC
ip igmp snooping priority Assigns a priority to all multicast traffic GC
ip igmp snooping
proxy-reporting
Enables IGMP Snooping with Proxy Reporting GC
ip igmp snooping querier Allows this device to act as the querier for IGMP snooping GC
ip igmp snooping
router-alert-option-check
Discards any IGMPv2/v3 packets that do not include the Router Alert
option
GC
ip igmp snooping
router-port-expire-time
Configures the querier timeout GC
ip igmp snooping tcn-flood Floods multicast traffic when a Spanning Tree topology change occurs GC
ip igmp snooping
tcn-query-solicit
Sends an IGMP Query Solicitation when a Spanning Tree topology
change occurs
GC