JP2004364342A5

JP2004364342A5 -

Info

Publication number: JP2004364342A5
Application number: JP2004278658A
Authority: JP
Filing date: 2004-09-27
Publication date: 2005-11-17
Anticipated expiration: 2019-02-25

Claims

A plurality of input lines, a plurality of output lines, and a control unit, which are connected to another packet relay device, and input packets input from one input line of the plurality of input lines are output to the plurality of outputs; A packet relay device that outputs to any output line of the line,
The packet relay device can perform the first and second operations among the first to third operations.
The other packet relay device can perform the third operation,
In the first operation, the control unit applies communication quality control to the packet based on at least one of address information of the input packet and information for identifying an application,
In the second operation, the control unit applies communication quality control to the packet based on information identifying the priority in the header of the input packet,
In the third operation, the other packet relay device identifies information in the header of the input packet based on at least one of the address information of the input packet and information for identifying the application. And applying communication quality control to the packet based on at least one of the address information, the information for identifying the application, or the information for identifying the priority,
Further, the control unit applies communication quality control to the packet in the second operation based on information identifying the priority given by the third operation in the other packet relay device. Is what
The control unit determines which of the first operation and the second operation is to be applied to an input packet.

An operation table that holds operation information indicating which operation of at least two of the first operation, the second operation, and the third operation is applied to an input line; ,
2. The packet relay device according to claim 1, wherein the control unit determines which operation is applied to the packet according to which input line the input packet is input from. .

The control unit includes at least one of address information of an input packet and information for identifying an application, and at least two of the first operation, the second operation, and the third operation. 2. The packet relay device according to claim 1, further comprising an entry table having operation information indicating which operation is applied as an entry.

The address information is
[1] Identification number of the input line,
[2] Identification number of the output line,
[3] Source physical address,
[4] Destination physical address,
[5] Source subnet identification information,
and,
[6] Destination subnet identification information,
The packet relay device according to claim 1, wherein the packet relay device is at least one of the above.

5. The packet relay device according to claim 1, wherein the information for identifying the application is a TCP port number.

6. The packet relay device according to claim 1, wherein the information for identifying the priority in the packet header is a value of a DS field.

A plurality of input lines, a plurality of output lines, and a control unit, which are connected to another packet relay device, and input packets input from one input line of the plurality of input lines are output to the plurality of outputs; A packet relay device that outputs to any output line of the line,
The packet relay device can operate in the first mode and the second mode among the first to third modes,
The other packet relay device can operate in the third mode,
In the first mode, the control unit is based on at least one of address information of the input packet and information for identifying an application without adding information for identifying priority in the header of the input packet. Communication quality control is applied to the packet,
In the second mode, the control unit applies communication quality control to the packet based on information for identifying priority in a header of the input packet.
In the third mode, the other packet relay device identifies information in the header of the input packet based on at least one of the address information of the input packet and information for identifying the application. Is given,
Further, the control unit applies communication quality control to the packet in the second operation based on the information for identifying the priority given by the third mode in the other packet relay device. Is what
The packet relay device, wherein the control unit determines which mode of the first mode or the second mode is applied to an input packet.

Connected to another packet relay device and a management device, and includes a plurality of input lines, a plurality of output lines, and a control unit, and receives an input packet input from one input line of the plurality of input lines. A packet relay device for outputting to any one of the plurality of output lines,
The packet relay device can perform the first and second operations among the first to third operations,
The other packet relay device can perform the third operation,
In the first operation, the control unit applies communication quality control to the packet based on at least one of address information of the input packet and information for identifying an application,
In the second operation, the control unit applies communication quality control to the packet based on information for identifying priority in a header of the input packet.
In the third operation, the other packet relay device identifies information in the header of the input packet based on at least one of the address information of the input packet and information for identifying the application. And applying communication quality control to the packet based on at least one of the address information, the information for identifying the application, or the information for identifying the priority,
Further, the control unit applies communication quality control to the packet in the second operation based on information identifying the priority given by the third operation in the other packet relay device. Is what
The packet relay device, wherein the control unit applies either the first operation or the second operation to an input packet in accordance with an input from the management device.

An operation table that holds operation information indicating which operation of at least two of the first operation, the second operation, and the third operation is applied to an input line; ,
9. The packet relay device according to claim 8, wherein the control unit determines which operation is applied to the packet according to which input line the input packet is input from. .

The control unit includes at least one of address information of an input packet and information for identifying an application, and at least two of the first operation, the second operation, and the third operation. 9. The packet relay apparatus according to claim 8, further comprising an entry table having operation information indicating which operation is applied as an entry.

The address information is
[1] Identification number of the input line,
[2] Identification number of the output line,
[3] Source physical address,
[4] Destination physical address,
[5] Source subnet identification information,
and,
[6] Destination subnet identification information,
The packet relay apparatus according to claim 8, wherein the packet relay apparatus is at least one of the above.

12. The packet relay device according to claim 8, wherein the information for identifying the application is a TCP port number.

13. The packet relay device according to claim 8, wherein the information for identifying priority in the packet header is a value of a DS field.

A plurality of input lines, a plurality of output lines, and a control unit, connected to another packet relay apparatus and a management apparatus, and an input packet input from one input line of the plurality of input lines A packet relay device for outputting to any one of a plurality of output lines,
The packet relay device can operate in the first mode and the second mode among the first to third modes,
The other packet relay device is operable in the third mode,
In the first mode, the control unit is based on at least one of address information of the input packet and information for identifying an application without adding information for identifying priority in the header of the input packet. Communication quality control is applied to the packet,
In the second mode, the control unit applies communication quality control to the packet based on information for identifying priority in a header of the input packet.
In the third mode, the other packet relay device identifies information in the header of the input packet based on at least one of the address information of the input packet and information for identifying the application. Is given,
Further, the control unit applies communication quality control to the packet in the second operation based on information identifying the priority given by the third operation in the other packet relay device. Is what
The packet relay device, wherein the control unit applies either the first mode or the second mode to an input packet in accordance with an input from the management device.