New Training: IPv4 Multicast Fundamentals
In this 8-video skill, CBT Nuggets trainer Keith Barker teaches you about multicast protocols, such as PIM and IGMP v2 and v3. Watch this new Cisco training.
Watch the full course: Cisco CCNP Enterprise Core
This training includes:
49 minutes of training
You’ll learn these topics in this skill:
Welcome to Multicast
Multicast Distribution Trees
Multicast Control Protocols
Sparse Mode SPT Cutover
Source Specific Multicast (SSM)
What is Multicast Routing?
Multicast IP Routing is a networking routing concept where a data packet is sent from one source sender to multiple receivers. This IP routing strategy is categorically different from the other popular IP routing strategy known as broadcast routing, where data packets are sent to every local link to effectively reach the target receiver of the data. This process of sending data through individual links to find their target receiver causes interruptions as links have to receive and process data packets that aren't necessarily important to that link or receiver.
Multicast routing works on the principle of maintaining a Multicast Address and associating that multicast address with several receivers that intend to receive that specific multicast data packet. In doing so, data packets can be sent to the multicast address and passed along to several of the receivers interested in gaining access to this data.