What is multicast RP?

Multicast PIM sparse mode requires an RP (Rendezvous Point) as a meeting point in the network for all multicast traffic. In our first PIM sparse mode lesson, we manually configured the RP on all routers. You’ll have to configure all routers to use another router as the RP. …

What is multicast IP source specific multicast?

The Source Specific Multicast feature is an extension of IP multicast where datagram traffic is forwarded to receivers from only those multicast sources to which the receivers have explicitly joined.

What is the role of RP in multicast?

An RP acts as the meeting place for sources and receivers of multicast data. In a PIM-SM network, sources must send their traffic to the RP. This traffic is then forwarded to receivers down a shared distribution tree.

Does SSM require RP?

An SSM-configured network has distinct advantages over a traditionally configured PIM sparse-mode network. There is no need for shared trees or RP mapping (no RP is required), or for RP-to-RP source discovery through MSDP. PIM SSM is simpler than PIM sparse mode because only the one-to-many model is supported.

What is BSR and RP in multicast?

BSR (Bootstrap) is similar to Cisco’s AutoRP, it’s a protocol that we use to automatically find the RP (Rendezvous Point) in our multicast network. Candidate BSR: this is the router that collects information from all available RPs in the network and advertises is throughout the network.

What is the multicast address range?

224.0.0.0 through 239.255.255.255
Host Extensions for IP Multicasting [RFC1112] specifies the extensions required of a host implementation of the Internet Protocol (IP) to support multicasting. The multicast addresses are in the range 224.0. 0.0 through 239.255. 255.255.

What is the function of a rendezvous point?

The single tree-based multicast system uses a Rendezvous Point (RP) based message dissemination scheme. That is, a sender of the multicast group sends a message to the root or the RP node of the tree, which then forwards the message along the tree to all receivers.

What is BSR multicast?

Which addresses are reserved for multicasting?

The IP address that defines a multicast group is a Class D address (224.0. 0.0 to 239.255. 255.255).

Do you need RP for Source Specific Multicast?

With IGMP version 3 (Defined RFC3376 in 2002 & updated RFC4604 in 2006), you can specify Source and Group address in IGMP join, therefore no need of RP on your network. That reduce most of your multicast configuration complexities.

Which is the best definition of any source multicast?

ASM (Any Source Multicast) is defined as receivers joining groups and receiving traffic from any source. But, SSM instead is utilized to identify a specific source a receiver wishes to receive traffic from. We still use PIM sparse-mode but RP are no longer required since receivers subscribe directly to a source.

When to use PIM or SSM in multicast?

On this scenario, we will use PIM SSM. ASM (Any Source Multicast) is defined as receivers joining groups and receiving traffic from any source. But, SSM instead is utilized to identify a specific source a receiver wishes to receive traffic from.

Do you need IGMPv3 for Source Specific Multicast?

SSM (Source Specific Multicast) requires IGMPv3 and lets us join multicast groups from specified source addresses. Besides just joining any group, the receiver is able to receive the group from a specified source. When we use SSM / IGMPv3 there are no shared trees.