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xStack® DGS-3420 Series Layer 2 Managed Stackable Gigabit Switch CLI Reference Guide
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Example
To display all IGMP snooping multicast VLAN profiles:
DGS-3420-28SC:admin#show igmp_snooping multicast_vlan_group_profile
Command: show igmp_snooping multicast_vlan_group_profile
Profile Name Multicast Addresses
----------------------- --------------------------------
Knicks 234.1.1.1 - 238.244.244.244
239.1.1.1 - 239.2.2.2
customer 224.19.62.34 - 224.19.162.200
Total Entries : 2
DGS-3420-28SC:admin#
37-7 config igmp_snooping multicast_vlan_group
Description
This command is used to configure the multicast group which will be learned with the specific
multicast VLAN. There are two cases that need to be considered. For the first case, suppose that a
multicast group is not configured and multicast VLANs do not have overlapped member ports. That
means the join packets received by the member port will only be learned with the multicast VLAN
that this port belongs to. If not, which is the second case, the join packet will be learned with the
multicast VLAN that contains the destination multicast group. If the destination multicast group of
the join packet can not be classified into any multicast VLAN that this port belongs to, then the join
packet will be learned with the natural VLAN of the packet. Please note that the same profile can
not overlap different multicast VLANs. Multiple profiles can be added to a multicast VLAN, however.
Format
config igmp_snooping multicast_vlan_group <vlan_name 32> [add | delete] profile_name
<profile_name 1-32>
Parameters
<vlan_name 32> - Specify the name of the multicast VLAN to be configured. Each multicast
VLAN is given a name that can be up to 32 characters.
add - Specify to associate a profile to a multicast VLAN.
delete - Specify to de-associate a profile from a multicast VLAN.
profile_name
- Specifies the multicast VLAN profile name. The maximum length is 32
characters.
<profile_name 1-32> - The profile name can be up to 32 characters long.
Restrictions
Only Administrator, Operator and Power-User level users can issue this command.
Example
To add an IGMP snooping profile to a multicast VLAN group with the name “v1”: