What is multicast and Unicast?
A Unicast transmission/stream sends IP packets to a single recipient on a network. A Multicast transmission sends IP packets to a group of hosts on a network. If you want to view the stream at multiple concurrent locations, then you would set the AVN’s destination IP address to a valid Multicast IP address (224.0.
What is a non Unicast?
Non-unicast packets Broadcast or multicast packets that were picked up by the NIC. Discards The number of packets rejected by the NIC, perhaps because they were damaged. Errors The errors that occurred during either the sending or receiving process.
What is multicast traffic used for?
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.
Does Netflix use IP multicast?
Since multicast is so much more efficient than unicast, large companies like Netflix and Youtube must be using this to stream videos right? Unfortunately multicast on the Internet has never really been implemented. The only place where you might see multicast on the Internet is your local ISP.
What is VXLAN bum?
VXLAN can handle BUM in two ways: Multicast and Head End Replication. When VTEP comes alive it uses the protocol Internet Group Management Protocol (IGMP) to join the multicast groups for the VNIs it uses. When VTEP has to send BUM traffic it will send it only to the relevant multicast group.
Is multicast a broadcast?
Multicast: One-to-many Multicast is a one-to-many streaming over IP method similar to traditional broadcast. Multicast uses UDP (User Datagram Protocol) for “broadcasting” a stream over a closed IP network such as a LAN (Local Area Network) or an IP Service provider’s own network.
What’s the difference between Bum and broadcast traffic?
BUM traffic refers to that kind of network traffic that will be forwarded to multiple destinations or that cannot be addressed to the intended destination only. Broadcast traffic is used to transmit a message to any reachable destination in the network without the need to know any information about the receiving party.
How is BUM traffic exchanged across network boundaries?
BUM traffic can be exchanged across network layer network boundaries by encapsulating it into VXLAN packets addressed to a multicast group, so to leverage the network for traffic replication services.
How is VXLAN used to handle BUM traffic?
VXLAN can handle BUM in two ways: Multicast and Head End Replication . Multicast is the most common and each VXLAN network identifier (VNI) is mapped to a single multicast group, while each multicast group may map to one or more VNIs.
How is broadcast unknown unicast and multicast traffic transmitted?
Broadcast, unknown-unicast and multicast traffic ( BUM traffic) is network traffic transmitted using one of three methods of sending data link layer network traffic to a destination of which the sender does not know the network address. This is achieved by sending the network traffic to multiple destinations on an Ethernet network.
