Encapsulation of data
View Patent ↗An encapsulation apparatus for encapsulating data includes an input to receive the data, a machine to generate information related to the encapsulation of data and a logic coupled to the machine. A processing machine is coupled to the input and the logic.
1. A method for encapsulating data into a frame, comprising:
providing information related to encapsulation of data;
selecting, based on the information, a code value from a plurality of code values reserved in a field of a frame, the selecting being performed at least partially by hardware logic;
providing the code value in the field of the frame; and
providing the data in the frame.
2. The method according to claim 1 , wherein the frame is an Ethernet frame.
3. The method according to claim 1 , wherein the field is an Ethernet field.
4. The method according to claim 1 , wherein the information relates to a number of cells to be provided in the frame.
5. The method according to claim 1 , wherein the field is a length/type field of the frame.
6. The method according to claim 1 , wherein the information is an encapsulation indicator to provide an indication that the frame comprises encapsulated data, the frame being an Ethernet frame.
7. The method according to claim 1 , wherein the code value is at least one preselected bit of a Tag Control Information (TCI) field of the frame.
8. The method according to claim 1 , wherein the information is information related to a number of cells to be provided in the frame.
9. The method according to claim 1 , wherein the field is the type/length field and the plurality of code values are code values between 0x05DD and 0x05FF.
10. An apparatus, comprising:
a device to generate information related to encapsulation of data;
a selection logic, at least partially embodied in hardware, to select based on the information a code value from a plurality of reserved code values in a field of a frame; and
a frame processor coupled to the logic, the frame processor to provide the selected code value in the field of the frame.
11. The apparatus according to claim 10 , wherein the field is a type/length field and the plurality of reserved code values are code values between 0x05DD and 0x05FF.
12. The apparatus of claim 10 , wherein the information is information related to a number of cells to be provided in the frame.
13. The apparatus of claim 10 , wherein the field is an Ethernet field and the frame is an Ethernet frame.
14. The apparatus of claim 10 , wherein the information relates to a data transmission port.
15. The apparatus of claim 10 , wherein the information is an encapsulation indicator to indicate that the frame comprises encapsulated data.
16. The apparatus of claim 10 , wherein the code value is at least one preselected bit of a Tag Control Information (TCI) field of the frame.
17. A method, comprising:
receiving an Ethernet frame including encapsulated data;
parsing a predetermined bit of a field of the Ethernet frame to determine a value of the predetermined bit; and
generating, by a device to generate information related to encapsulated data, information related to the encapsulated data based on the value of the predetermined bit.
18. The method according to claim 17 , wherein the predetermined bit is associated with a Tag Control Information (TCI) field.
19. The method according to claim 17 , wherein the information is an encapsulation indicator for indicating that the Ethernet frame comprises encapsulated data.
20. The method according to claim 17 , wherein the field is a length/type field of the Ethernet frame.