What is BGP multicast?

BGP multicasting (MBGP) is an extension of the BGP unicast routing protocol. Many of the functions available for BGP unicasting are also available for MBGP. The MBGP extensions specify that BGP can exchange information within different types of address families.

Does BGP support multicast?

MP-BGP supports unicast and multicast, and constructs different network topologies for each. MP-BGP can maintain unicast and multicast routes based on routing policies. The unicast routing policies and configurations supported by BGP-4 can mostly be applied to multicast.

What is the multicast address of BGP?

Multicast addresses in the range of 224.0. 0.1 to 224.255. 255.255 are reserved for special addresses or network protocol on a multiaccess link.

What is multicast setup?

Multicast routing is a networking method for efficient distribution of one-to-many traffic. A multicast source, such as a live video conference, sends traffic in one stream to a multicast group. The multicast group contains receivers such as computers, devices, and IP phones.

What is multicast routing protocol?

A multicast routing protocol manages group membership and controls the path that multicast data takes over the network. Examples of multicast routing protocols include: Protocol Independent Multicast (PIM), Multicast Open Shortest Path First (MOSPF), and Distance Vector Multicast Routing Protocol (DVMRP).

What is the difference between BGP and MP-BGP?

MP-BGP (Multiprotocol BGP) is an extension of the BGP protocol. Standard BGP only supports IPv4 unicast address families, whereas MP-BGP supports more than 15 different BGP address families.

Does MP-BGP need MPLS?

MP-iBGP is required within the MPLS/VPN architecture because the BGP update needs to carry more information than just an IPv4 address. You have seen already that an MP-iBGP update contains a VPN-IPv4 address, MPLS label information, extended BGP communities, and possibly standard BGP communities.

How do I create a multicast IP address?

Enabling multicast on an IP address

  1. To check if multicast is enabled already on an IP address use the “ifconfig” command. # ifconfig eth0 | grep -i multi UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1.
  2. To disable multicast on a spcific ip/interface:
  3. To enable multicast on a specific ip/interface :

What is the purpose of a multicast address?

A multicast address identifies a group of hosts sharing the same address. Multicast addresses are not assigned to a device, rather, a device proceeds to listen for and receive traffic destined to a multicast group that it has joined by some process. Multicasting is UDP-based.

Why do we use multicast?

Multicast IP Routing protocols are used to distribute data (for example, audio/video streaming broadcasts) to multiple recipients. Using multicast, a source can send a single copy of data to a single multicast address, which is then distributed to an entire group of recipients.

What are the types of multicast?

There are two types of multicast routing protocols:

  • Dense Mode.
  • Sparse Mode.