D-Link xStack DGS-3120 Series Cli Reference Manual page 461

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xStack DGS-3120 Series Layer 3 Managed Gigabit Ethernet Switch CLI Reference Guide
To show IGMP snooping groups when only IGMP v2 is supported: The third item is a data-driven
learned entry. If the member port list is empty, the multicast packets will be forwarded to the router
ports. If the router port list is empty, the packets will be dropped.
DGS-3120-24TC:admin# show igmp_snooping group
Command: show igmp_snooping group
Source/Group
VLAN Name/VID
Member Ports
UP Time
Expiry Time
Filter Mode
Source/Group
VLAN Name/VID
Member Ports
UP Time
Expiry Time
Filter Mode
Source/Group
VLAN Name/VID
Member Ports
Router Ports
UP Time
Expiry Time
Filter Mode
Source/Group
VLAN Name/VID
Member Ports
UP Time
Expiry Time
Filter Mode
Total Entries: 4
DGS-3120-24TC:admin#
42-19 show igmp_snooping forwarding
Description
This command is used to display the Switch's current IGMP snooping forwarding table. It provides
an easy way for users to check the list of ports that the multicast group that comes from a specific
sources will be forwarded to. The packet comes from the source VLAN. They will be forwarded to
the forwarding VLAN. The IGMP snooping further restricts the forwarding ports.
Format
show igmp_snooping forwarding {[vlan <vlan_name 32> | vlanid <vlanid_list>]}
: NULL/226.0.0.1
: default/1
: 1:5
: 10
: 258
: EXCLUDE
: NULL/226.0.0.2
: default/1
: 1:5
: 9
: 259
: EXCLUDE
: NULL/226.0.0.3
: default/1
:
:
: 1
: 259
: EXCLUDE
: NULL/239.255.255.250
: default/1
: 1:5
: 1
: 259
: EXCLUDE
456