Cisco SLM2008 - Small Business Smart Switch Technical Information Seite 132

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Cisco Small Business 200 Series Smart Switch Administration Guide 125
Configuring Multicast Forwarding
This chapter describes the Multicast Forwarding feature, and contains the
following topics:
Multicast Forwarding
Defining Multicast Properties
Adding MAC Group Address
Adding IP Multicast Group Addresses
Configuring IGMP Snooping
MLD Snooping
Viewing IGMP/MLD IP Multicast Groups
Defining Multicast Router Ports
Defining Forward All Multicast
Defining Unregistered Multicast Settings
Multicast Forwarding
Multicast forwarding enables one-to-many information dissemination. Multicast
applications are useful for dissemination of information to multiple clients, where
clients do not require reception of the entire content. A typical application is a
Cable-TV like service, where clients can join a channel in the middle of a
transmission, and leave before it ends.
The data is sent only to relevant ports. Forwarding the data only to the relevant
ports conserves bandwidth and host resources on links.
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