
UMN:CLI User Manual
SURPASS hiD 6615 S223/S323 R1.5
288 A50010-Y3-C150-2-7619
9.2.3 L2
MFIB
Occasionally, unknown multicast traffic is flooded because a MAC address has timed out
or has not been learned by the switch. To guarantee that no multicast traffic is flooded to
the port, use the following command.
Command Mode
Description
ip unknown-multicast block
Configures the blocking of unknown multicast traffic.
ip unknown-multicast
port PORTS block
Configures the blocking of unknown multicast traffic for
a specific port.
no ip unknown-multicast block
no ip unknown-multicast port
PORTS
block
Global
Returns to the normal forwarding states.
9.2.4
IGMP Snooping Basic Configuration
9.2.4.1
Enabling IGMP Snooping per VLAN
The hiD 6615 S223/S323 supports 256 Snooping Membership Group Table that are
managed by each VLAN. Snooping supports Enable/Disable by VLAN independently. By
default, IGMP snooping is globally disabled on the switch.
To enable/disable global IGMP, use the following steps.
Step 1
Open
Global Configuration
mode using the
configure terminal
command.
Step 2
Execute the
ip multicast-routing
command.
Step 3
Enable IGMP snooping in all existing VLAN interfaces.
Command Mode
Description
ip igmp snooping
Global Enables
IGMP snooping globally.
Step 4
Return to
Privileged EXEC Enable
mode using
exit
command. To globally disable IGMP
snooping on all VLAN interfaces, use the
no ip igmp snooping
command. In
Global
Configuration
mode, follow these steps to enable IGMP snooping on a VLAN interface.
Step 1
Open
Global Configuration
mode using the
configure terminal
command.
Step 2
Execute the
ip multicast-routing
command.