Chapter 23
| Multicast Filtering Commands
IGMP Snooping
– 553 –
ip igmp snooping
unregistered-data-
flood
This command floods unregistered multicast traffic into the attached VLAN. Use the
no
form to drop unregistered multicast traffic.
Syntax
[
no
]
ip igmp snooping unregistered-data-flood
Default Setting
Disabled
Command Mode
Global Configuration
Command Usage
Once the table used to store multicast entries for IGMP snooping and multicast
routing is filled, no new entries are learned. If no router port is configured in the
attached VLAN, and unregistered-flooding is disabled, any subsequent multicast
traffic not found in the table is dropped, otherwise it is flooded throughout the
VLAN.
Example
Console(config)#ip igmp snooping unregistered-data-flood
Console(config)#
ip igmp snooping
unsolicited-report-
interval
This command specifies how often the upstream interface should transmit
unsolicited IGMP reports when proxy reporting is enabled. Use the
no
form to
restore the default value.
Syntax
ip igmp snooping unsolicited-report-interval
seconds
no ip igmp snooping unsolicited-report-interval
seconds - The interval at which to issue unsolicited reports. (Range: 1-65535
seconds)
Default Setting
400 seconds
Command Mode
Global Configuration
Command Usage
â—†
When a new upstream interface (that is, uplink port) starts up, the switch sends
unsolicited reports for all currently learned multicast channels out through the
new upstream interface.
â—†
This command only applies when proxy reporting is enabled (see page 548).
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