Method and system for providing operations, administration, and maintenance capabilities in packet over optics networks
AssigneeCisco Technology, Inc.
InventorsAndreas Bechtolsheim, Hiroshi Suzuki, Marinica Rusu, Paul Frantz, Sharat Prasad
Life of this patent
Estimating the term…
Abstract
A method and system for conveying management information across a network are disclosed. The method includes generating an Ethernet packet comprising a converged data link header in place of an Ethernet preamble and transmitting the modified packet from a network element. The header is configured to provide support for network management.
Claims30
A method for multiplexing data streams within a network, the method comprising:
- receiving an Ethernet packet at a network element;
- modifying said packet by removing an Ethernet preamble and inserting a converged data link header in place of the Ethernet preamble, the converged data link header configured to support multiplexing;
- and;
- transmitting the modified packet from the network element;
- wherein the converged data link header comprises a subinterface identifier identifying a port on which the Ethernet packet was received and configured for use in demultiplexing packet streams at a destination node;
- and
- wherein the network element is an optical crossconnect.
A method for multiplexing data streams within a network, the method comprising:
- receiving an Ethernet packet at a network element;
- modifying said packet by removing an Ethernet preamble and inserting a converged data link header in place of the Ethernet preamble, the converged data link header configured to support multiplexing;
- and;
- transmitting the modified packet from the network element;
- wherein the converged data link header comprises a subinterface identifier identifying a port on which the Ethernet packet was received and configured for use in demultiplexing packet streams at a destination node;
- and
- wherein the network element is a terminal multiplexer.
A method for multiplexing data streams within a network, the method comprising:
- receiving an Ethernet packet at a network element;
- modifying said packet by removing an Ethernet preamble and inserting a converged data link header in place of the Ethernet preamble, the converged data link header configured to support multiplexing;
- and;
- transmitting the modified packet from the network element;
- wherein the converged data link header comprises a subinterface identifier identifying a port on which the Ethernet packet was received and configured for use in demultiplexing packet streams at a destination node;
- and
- wherein the network element is a signal regenerator.
A network element for conveying network management information in a network, the network element comprising:
- a receiver operable to receive an Ethernet packet;
- a port controller operable to generate and transmit a modified Ethernet packet, the modified Ethernet packet having an Ethernet preamble replaced with a converged data link header configured to provide support for operations, administration, and maintenance;
- and
- a network element controller coupled to the port controller and comprising a processor operable to generate and consume network management information;
- wherein the converged data link header comprises a subinterface identifier identifying a port on which the Ethernet packet was received and configured for use in demultiplexing packet streams at a destination node;
- wherein the network element is an optical crossconnect.
A computer-readable storage medium encoded with a computer program for conveying network management information within a network, the computer program comprising:
- code that receives an Ethernet packet at a network element;
- code that replaces a preamble of the Ethernet packet with a converged data link header;
- code that generates a modified packet comprising said converged data link header in place of said Ethernet preamble, said converged data link header configured to provide support for operations, administration, and maintenance;
- and
- code that provides each of the packets with a subinterface identifier within said header to allow multiplexing of packet streams;
- code that transmits the modified Ethernet packet;
- wherein code that transmits said modified Ethernet packet comprises code that identifies a failure on a first path and transmits said Ethernet packet on a backup path.
A method for conveying network management information within a network, the method comprising:
- receiving an Ethernet packet at a network element;
- replacing a preamble of the Ethernet packet with a converged data link header;
- generating a modified Ethernet packet comprising said converged data link header in place of said preamble, said converged data link header configured to provide support for operations, administration, and maintenance;
- wherein the converged data link header comprises a subinterface identifier identifying a port on which the Ethernet packet was received;
- and
- transmitting said modified Ethernet packet from the network element, wherein transmitting said modified Ethernet packet comprises identifying a failure on a first path and transmitting said modified Ethernet packet on a backup path.
Dependencies are inferred from the claim text.