H3C S5500-EI - Protocols and Standards; IGMP Snooping Configuration Task List

21
IGMP messa
g
e Actions
Group-specific query
In response to the IGMP group-specific query for a certain multicast
group, the proxy sends the report to the group out of all router ports if the
forwarding entry for the group still contains a member port.
Report
After receiving a report for a multicast group, the proxy looks up the
multicast forwarding table for the forwarding entry for the multicast
group.
• If a forwarding entry matches the multicast group and contains the
receiving port as a dynamic member port, the proxy restarts the
aging timer for the port.
• If a forwarding entry matches the multicast group but does not
contain the receiving port, the proxy adds the port to the forwarding
entry as a dynamic member port and starts an aging timer for the
port.
• If no forwarding entry matches the multicast group, the proxy creates
a forwarding entry for the multicast group, adds the receiving port to
the forwarding entry as a dynamic member port, and starts an aging
timer for the port.
Leave
In response to an IGMP leave message for a multicast group, the proxy
sends a group-specific query out of the receiving port. After making sure
that no member port is contained in the forwarding entry for the
multicast group, the proxy sends a leave message to the group out of all
router ports.
Protocols and standards
RFC 4541, Considerations for Internet Group Management Protocol (IGMP) and Multicast Listener
Discovery (MLD) Snooping Switches
IGMP snooping configuration task list
Task Remarks
Configuring basic
IGMP snooping
functions
Enabling IGMP snooping Required
Specifying the version of IGMP snooping Optional
Configuring static multicast MAC address entries Optional
Configuring IGMP
snooping port
functions
Setting aging timers for dynamic ports Optional
Configuring static ports Optional
Configuring a port as a simulated member host Optional
Enabling IGMP snooping fast-leave processing Optional
Disabling a port from becoming a dynamic router port Optional
Configuring IGMP
snooping querier
Enabling IGMP snooping querier Optional
Configuring parameters for IGMP queries and responses Optional
Configuring the source IP addresses for IGMP queries Optional