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IGMP Snooping Configuration Commands
IGMP Snooping Configuration Commands
This section describes the commands you use to configure IGMP snooping.
FASTPATH SMB software supports IGMP Versions 1, 2, and 3. The IGMP
snooping feature can help conserve bandwidth because it allows the switch to
forward IP multicast traffic only to connected hosts that request multicast traffic.
IGMPv3 adds source filtering capabilities to IGMP versions 1 and 2.
Note
This note clarifies the prioritization of MGMD Snooping Configurations. Many
of the IGMP/MLD Snooping commands are available both in the Interface and
VLAN modes. Operationally the system chooses or prefers the VLAN
configured values over the Interface configured values for most configurations
when the interface participates in the VLAN.
set igmp
This command enables IGMP Snooping on the system (Global Config Mode), an
interface, or a range of interfaces. This command also enables IGMP snooping on
a particular VLAN (VLAN Config Mode) and can enable IGMP snooping on all
interfaces participating in a VLAN.
If an interface has IGMP Snooping enabled and you enable this interface for
routing or enlist it as a member of a port-channel (LAG), IGMP Snooping
functionality is disabled on that interface. IGMP Snooping functionality is re-
enabled if you disable routing or remove port-channel (LAG) membership from
an interface that has IGMP Snooping enabled.
The IGMP application supports the following activities:
◆
Validation of the IP header checksum (as well as the IGMP header
checksum) and discarding of the frame upon checksum error.
◆
Maintenance of the forwarding table entries based on the MAC address
versus the IP address.
◆
Flooding of unregistered multicast data packets to all ports in the VLAN.
Default
disabled
Format
set igmp [
vlan_id
]
Mode
◆
Global Config
◆
Interface Config
◆
VLAN Config
Summary of Contents for CN1610
Page 3: ......
Page 31: ...28 Accessing the CLI ...
Page 309: ...306 Remote Monitoring Commands ...
Page 473: ...470 Port Mirroring Commands 100 ...
Page 487: ...484 DHCP L2 Relay Agent Commands Mode Privileged EXEC ...
Page 607: ...604 IPv6 Management Commands ...