1) What is data encapsulation?
Data Encapsulation is a process of hiding and protecting data from the outside users or interference. The sending and receiving of data from a source device to the destination device is possible with the help of networking protocols when data encapsulation is used. Protocol Data Units contain the control information attached to the data at each layer.
The information is attached to the data field’s header but can also be at the end of the data field or trailer.
PDUs are encapsulated by attaching them to the data at each OSI reference model layer.
| Encapsulation Protocol and Network Layer Settings |
|
| | |
| | Ethernet frame format used by many routers as their proprietary, default encapsulation protocol. It has similar capabilities to bridged Ethernet or Token Ring, but is more efficient.1 |
| | Ethernet frame format used by bridges and bridging routers. Can carry any network layer protocol supported by Ethernet. |
| | (Frame Relay only) Either RFC1490 or EtherType encapsulation protocol based on the frames themselves. This is the best choice to use with Frame Relay because it works with both of the most common encapsulation techniques. |
| | A network-layer protocol that directs the ASE to analyze data assuming it is IP protocol.2 |
| | A network-layer protocol that directs the ASE to analyze data assuming that it is SNA protocol.2 |
| | A network-layer protocol that directs the ASE to analyze data assuming that it is Banyan VINES protocol.2 |
| | A network-layer protocol that directs the ASE to analyze data assuming it is DECnet IV protocol.2 |
| | The standard point-to-point protocol used mainly on point-to-point links analyzed by the HDLC ASE, but can be used by Frame Relay ASEs. |
| | (Frame Relay only) Standard Frame Relay Multi protocol encapsulation. This is the most versatile and common encapsulation protocol used with Frame Relay. |
| | (HDLC only) An encapsulation protocol that decodes proprietary framing used by routers on point-to-point links. |
| | Token Ring frame format used by bridges and bridging routers. Can carry any network layer protocol supported by Token Ring networks. |
| | |
0 Response to "What is data encapsulation?"
Post a Comment