Amer Networks SS2R48G4i V2 - Manual (Page 119)

SS2R24G4i/SS2R48G4i
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Chapter 12 Multicast VLAN Configuration
12.1 Multicast VLAN Introduction
Based on the current multicast programordering method, when users in different VLANs order
programs, each VLAN will copy a multicast stream within itself. This method will waste lots of bandwidth.
So by configuring multicast VLAN, we add the ports of a switch to a multicast VLAN, after enabling the
IGMP Snooping function, we can make users in different VLANs share a same multicast VLAN, and
limit the transimisstion of multicast stream within only one multicast VLAN. Thus, bandwidth will be
saved. Since the multicast VLAN and user VLAN are completely isolated, both the security and the
bandwidth can be guaranteed. After we configure the multicast VLAN, we can ensure that the multicast
information stream can be sent to users without a stop.
12.2 Multicast VLAN Configuration
12.2.1 Multicast VLAN Configuration Task Sequence
1.Start multicast VLAN function
2.Configure IGMP Snooping
1．Start multicast VLAN function
Command Explanation
VLAN configuration modeg
multicast-vlan
no multicast-vlan
Configure a VLAN to start the multicast
VLAN function. The ” no multicast-vlan”
command will disable the multicast VLAN
function of the VLAN.
multicast-vlan association <vlan-list>
no multicast-vlan association <vlan-list>
Associate a multicst VLAN to other VLANs.
The ” no multicast-vlan association
<vlan-list>” command will delete the
accosiated VLANs of the multicast VLAN.
2.Configure IGMP Snooping
Command Explanation
Global configuration mode
ip igmp snooping vlan <vlan-id>
no ip igmp snooping vlan <vlan-id>
Start the IGMP Snooping function of the
multicast vlan. “no ip igmp snooping vlan
<vlan-id>” command will disable the IGMP
Snooping function of the multicast vlan.
ip igmp snooping
no ip igmp snooping
Start the IGMP Snooping function. The “no
ip igmp snooping ” command will disable