Carrier ethernet with fault notification
AssigneeGridpoint Systems Inc.
InventorsStacey Felkar, Frederic Perras, Ken Young, Chris Barrett
Life of this patent
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Abstract
A method of fault notification in a carrier Ethernet having the capability of generating and transmitting OAM packets having flag fields, comprises inserting a bit in one of the flag fields to indicate the presence of service-affecting information in the OAM packets, detecting the presence of the inserted bit at the end of a data path, and performing a service protection action in response to the detection of the inserted bit prior to parsing the information in the message. One type of service protection action is protection switching.
Claims4
A method of fault notification in a carrier Ethernet having the capability of generating and transmitting OAM packets having flag fields, comprising
- inserting a bit in one of the flag fields to indicate the presence of service-affecting information in the OAM packets,
- detecting the presence of the inserted bit at the end of a data path, and
- performing a service protection action in response to the detection of the inserted bit prior to parsing the information in the message.
A method of fault notification in a carrier Ethernet having the capability of inserting continuity check messages in a selected data path to indicate the loss of connectivity, the messages having continuity check flag fields, comprising
- inserting the continuity check messages in a selected data path to indicate the loss of connectivity,
- terminating the insertion of the continuity check messages,
- detecting the interruption in the arrival of the continuity check messages at the end of the data path, and
- performing a service protection action in response to the detection of the interruption.
Dependencies are inferred from the claim text.