Ethernet encapsulation over optical transport network
AssigneeCisco Technology, Inc.
InventorGilberto Loprieno
Life of this patent
Estimating the term…
Abstract
A method and system for encapsulating a frame for transport over an optical transport network are disclosed. A method includes receiving a packet at a network device and encapsulating the packet. The packet is received from a network having a line frequency different than a payload frequency of the optical transport network and the encapsulated packet is configured for transport directly over the optical transport network without modification to compensate for the different frequencies.
Claims23
A method for encapsulating a packet for transport over an optical transport network, the method comprising:
- receiving a packet at a network device;
- and
- encapsulating said packet, said encapsulating comprising:
- removing one or more fields from said received packet;
- and
- inserting overhead in said packet;
- whereby said packet is received from a network having a line frequency different than a payload frequency of the optical transport network and said encapsulated packet is configured for transport directly over the optical transport network without modification to compensate for the different frequencies.
A computer program product for encapsulating a packet for transport over an optical transport network, comprising:
- code for reading a packet received at a network device;
- code for encapsulating said packet, said encapsulation code comprising:
- code for removing one or more fields from said received packet;
- and
- code for inserting overhead in said packet;
- and
- a computer-readable storage medium for storing the codes;
- whereby said packet is received from a network having a line frequency different than a payload frequency of the optical transport network and said encapsulated packet is configured for transport directly over the optical transport network without modification to compensate for the different frequencies.
Apparatus for encapsulating a packet for transport over an optical transport network, comprising:
- means for receiving a packet at a network device;
- and
- means for encapsulating said packet, said encapsulating means comprising:
- means for removing one or more fields from said received packet;
- and
- means for inserting overhead in said packet;
- whereby said packet is received from a network having a line frequency different than a payload frequency of the optical transport network and said encapsulated packet is configured for transport directly over the optical transport network without modification to compensate for the different frequencies.
A method for mapping an Ethernet frame to an optical transport network, the method comprising:
- receiving an Ethernet packet from a network operating at a first frequency;
- removing a preamble field and a start of frame delimiter field from the Ethernet packet;
- inserting overhead in the packet;
- and
- transporting the packet directly over the optical transport network operating at a second frequency different from said first frequency.
Dependencies are inferred from the claim text.