Users Guide

Network Administration: Multicast 289
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Guide\Dell_Astute_Network_Admin_Multicast.fm
DELL CONFIDENTIAL – PRELIMINARY 8/9/16 - FOR PROOF ONLY
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Network Administration: Multicast
This chapter describes Multicast support on the device.
It contains the following topics:
•Overview
• Global Parameters
• Multicast Group
• Multicast Forward All
• IGMP Snooping
• MLD Snooping
•Unregistered Multicast
• Multicast TV VLAN
• Multicast TV VLAN Membership
• Multicast TV VLAN Mapping
Overview
Multicast forwarding enables a single packet to be forwarded to multiple
destinations. Layer 2 Multicast service is based on a Layer 2 device receiving a
single packet addressed to a specific Multicast address. Multicast forwarding
creates copies of the packet, and transmits the packets to the relevant ports.
There are two types of Multicast groups:
• Registered Multicast Group — When traffic addressed to a registered
Multicast group is received, it is handled according to its entry in the
Multicast Filtering Database and forwarded only to the ports with
hosts that have registered to receive packets destined to the Multicast
group.