COMMUNICATION SYSTEM, TRANSMISSION APPARATUS, COMMUNICATION APPARATUS, FAILURE NOTIFICATION METHOD, AND NON-TRANSITORY COMPUTER-READABLE MEDIUM STORING PROGRAM
First Claim
1. A communication system comprising:
- a transmission apparatus configured to, when a failure is detected, transmit a notification frame; and
a receiving apparatus configured to receive or transmit the notification frame, whereinthe transmission apparatus comprises;
a transmission frame processing unit holding first section information about a related section and a failure notification path and configured to, when a failure occurs, to insert information about an output path into the notification frame based on a location of the failure and the first section information, and to determine a port from which the notification frame is to be output; and
a frame transmission unit configured to receive the notification frame and information about the port from the transmission frame processing unit and to transmit the notification frame from the port,the receiving apparatus comprises;
a frame transmission/reception unit configured to receive the notification frame and to transfer the notification frame in accordance with an instruction; and
a received frame processing unit configured to, when the notification frame is received, mask a failure state or control transfer of the notification frame based on second section information corresponding to the first section information, and the notification frame.
1 Assignment
0 Petitions
Accused Products
Abstract
An AIS management table 14 is storing entries having, as fields, an input port connected to a section, a section endpoint serving as an input destination, a path over which an AIS frame is to be output, and an output port connected to a section. When a failure is detected in a section, an AIS processing unit 19 searches an AIS management table 14 using, as a key, an input port or section endpoint involved in the location of the failure, inserts retrieved path information into an AIS frame for failure detection, and determines that a retrieved output port is the output destination of the AIS frame. A frame transfer unit 12 receives the AIS frame and information about the output port from the AIS processing unit 19 and transmits the AIS frame from the output port to an adjacent section.
36 Citations
10 Claims
-
1. A communication system comprising:
-
a transmission apparatus configured to, when a failure is detected, transmit a notification frame; and a receiving apparatus configured to receive or transmit the notification frame, wherein the transmission apparatus comprises; a transmission frame processing unit holding first section information about a related section and a failure notification path and configured to, when a failure occurs, to insert information about an output path into the notification frame based on a location of the failure and the first section information, and to determine a port from which the notification frame is to be output; and a frame transmission unit configured to receive the notification frame and information about the port from the transmission frame processing unit and to transmit the notification frame from the port, the receiving apparatus comprises; a frame transmission/reception unit configured to receive the notification frame and to transfer the notification frame in accordance with an instruction; and a received frame processing unit configured to, when the notification frame is received, mask a failure state or control transfer of the notification frame based on second section information corresponding to the first section information, and the notification frame. - View Dependent Claims (2, 3, 4, 5, 6)
-
-
7. A transmission apparatus comprising:
-
a transmission frame processing unit holding first section information about a related section and a failure notification path and configured to, when a failure occurs, to insert information about an output path of a notification frame for failure notification into the notification frame based on a location of the failure and the first section information, and to determine a port from which the notification frame is to be output; and a frame transmission unit configured to receive the notification frame and information about the port from the transmission frame processing unit and to transmit the notification frame from the port.
-
-
8. A communication apparatus for making a notification indicating failure detection and receiving a notification frame having notification path information embedded therein, the communication apparatus comprising:
-
a table including section information about a connected section; a frame transmission/reception unit configured to receive the notification frame and to transfer the notification frame in accordance with an instruction; and a received frame processing unit configured to, when the notification frame is received, mask a failure state or control transfer of the notification frame based on the table and the notification frame.
-
-
9. (canceled)
-
10. (canceled)
Specification