Chapter 21
| Multicast Filtering Commands
IGMP Snooping
– 502 –
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
◆
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.
◆
This command only applies when proxy reporting is enabled (see
).
Example
Console(config)#ip igmp snooping unsolicited-report-interval 5
Console(config)#
