This is the first video of a complete lecture series on IP Multicast and its implementation on both IOS and Junos routers with a focus on CCIE and JNCIE candidate requirements.

In this video we discuss the following topics:

What is IP multicast and its relevance to CCIE and JNCIE
How does IP multicast differ from broadcast and replicated unicast
Why is multicast more efficient than broadcast and replicated unicast
The addressing of an IP multicast packet, the class of IP space used, the packet structure and the flat nature of the Class D space
The need to generate unique ethernet MAC addresses to use as destination multicast MACs
The addressing of a layer 2 ethernet packet encapsulating IP Multicast
How multicast IPs are mapped to multicast ethernet MAC addresses and how up to 32 IP multicast IPs can potentially map to a single MAC address