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User’s Manual of SGSD-1022 / SGSD-1022P
SGSW-2840 / SGSW-2840P
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Figure 4-9-5 IP Multicast Registration Table page screenshot
The page includes the following fields:
Object Description
• VLAN ID
Selects the VLAN for which to display port members.
(Range: 1-4094)
• Multicast IP Address
The IP address for a specific multicast service.
• Multicast Group Port
List
Shows the interfaces that have already been assigned to the selected VLAN to
propagate a specific multicast service.
To show all the multicast services / groups on the Managed Switch and the member ports of
each multicast group, type the below command at command line mode:
Console# show mac-address-table multicast
VLAN M'cast IP addr. Member ports Type
------- ------------------- ------------------ ------
1 224.1.1.12 Eth1/12 USER
1 224.1.2.3 Eth1/12 IGMP
4.9.1.6 IGMP Member Port Table
Multicast filtering can be dynamically configured using IGMP Snooping and IGMP Query messages as described in IGMP
Configuration. For certain applications that require tighter control, you may need to statically configure a multicast service on
the Managed Switch. First add all the ports attached to participating hosts to a common VLAN, and then assign the multicast
service to that VLAN group.
- Static multicast addresses are never aged out.
- When a multicast address is assigned to an interface in a specific VLAN, the corresponding traffic can only be forwarded to
ports within that VLAN.
Command Sequence –
1. Specify the interface attached to a multicast service (via an IGMP-enabled switch or multicast router)
2. Indicate the VLAN that will propagate the multicast service
3. Specify the multicast IP address
4. Click Add.