CH A P T E R
IP Multicast in a WAN
This chapter discusses the basic layout needed to use IP multicast in a WAN and includes the following sections:
Multicast WAN Deployment Recommendations IP Multicast WAN Configuration Summary
This chapter uses MoH and IP/TV in the examples. It does not, however, provide detailed configurations and designs for MoH and IP/TV. A basic MoH and IP/TV implementation is covered in Chapter 7, “Multicast Music-on-Hold and IP/TV Configurations.”
Also, other types of IP multicast implementations, such as IP multicast for financial deployments, are not covered.
Multicast WAN Deployment Recommendations
This chapter discusses the recommended and optional configurations for IP multicast WAN deployment. The recommended guidelines are summarized below:
Use IP Multicast to scale streaming applications, such as Music-on-Hold and IP/TV. Use administratively scoped addresses to differentiate multicast applications by type and bandwidth. Use Anycast RP.
Select Catalyst switches that have IGMP snooping and use CGMP in low-end switches that do not support IGMP snooping.
Use the recommended commands to ensure that the correct RPs and sources are used. Use IP Multicast boundaries to control where certain multicast streams go.
Use “show” commands to ensure proper operation of the multicast configurations and enable SNMP traps to log multicast events.
Cisco AVVID Network Infrastructure IP Multicast Design