Method for interfacing between different QoS offering methods
AssigneeLG Electronics Inc.
InventorKi Young Lee
Life of this patent
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Abstract
Disclosed herein is a method for interfacing between different QoS offering methods. An equipment that supports only a first QoS method without supporting a second QoS method can be operated to support the second method. Additionally, an equipment that supports only the second QoS method without supporting the first QoS method can be operated to support the first method. Therefore, data can be transmitted more efficiently by granting a high level of priority to packets that cannot have a high level of priority in existing boundary routers.
Claims25
A method for interfacing equipment supporting different QoS offering methods, comprising:
- searching a MAC frame of a received packet, the packet being received at a port of an equipment that supports only a first QoS method without supporting a second QoS method, to determine whether the received packet is of the first or second QoS method;
- if it is determined that the received packet is a packet of the second QoS method, loading a Tag Control Information (TCI) field of a layer 2 header of the received packet into the equipment;
- classifying values of the loaded TCI field into a plurality of priority levels using a tag of the second QoS method;
- transforming the loaded TCI field into a corresponding Per Hop Behavior (PHB) based on a transformation table, depending on the level of priority;
- and
- indicating the PHB by a corresponding DiffServ Code Point (DSCP) code.
A method for interfacing equipment supporting different QoS methods, comprising:
- determining whether a packet received through a switch in an equipment that supports only a second QoS method without supporting a first QoS method is a packet of the first method;
- if it is determined that the received packet is a packet of the first QoS method, loading a DSCP included in a ToS of an IP header of the received packet into the equipment;
- determining a PHB corresponding to codes of the loaded DSCP and transforming the PHB into corresponding levels of priority of the second method based on a transformation table;
- and
- indicating the priority level as a corresponding TCI field.
A method of converting a data packet from a first quality of service (QoS) structure to a second QoS structure to determine a priority level of the data packet at a system configured to receive data packets of the second QoS structure, comprising:
- receiving a data packet having a first quality of service (QoS) structure at a system configured for a second QoS structure;
- analyzing a TCI field of a layer two header of the received data packet to determine a priority level of the data packet;
- transforming the priority level of the TCI field into a corresponding PHB using a transformation table;
- and
- indicating the PHB by a corresponding DSCP code of the data packet.
A method of converting a data packet from a first quality of service (QoS) structure to a second QoS structure to determine a priority level of the data packet received at a system configured to receive data packets of the second QoS structure, comprising:
- receiving a data packet having a first quality of service (QoS) structure at a system configured for a second QoS structure;
- analyzing prescribed header information of the received data packet to determine a priority level of the data packet;
- transforming the priority level information from the header of the received data packet into a corresponding priority level of the second QoS structure using a transformation table;
- and
- modifying the header information of the received data packet to include the transformed priority level corresponding to the second QoS structure.
Dependencies are inferred from the claim text.