Client protection switch in optical pluggable transceivers activated through fast electrical data squelch
AssigneeCiena Corporation
InventorsEric Maniloff, Ronald Hoffe
Life of this patent
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Abstract
Client-side protection systems and methods are implemented by a network element using a fast electrical squelch with a first optical transceiver and a second optical transceiver. A client-side protection method includes detecting a protection switching event affecting one or more lanes associated with the first optical transceiver; causing a fast electrical squelch to the affected one or more lanes of the first optical transceiver to provide a Loss of Signal (LOS) thereto; and subsequent to the LOS to the first electrical transceiver, causing a fast electrical squelch to corresponding one or more lanes of the second optical transceiver to enable the corresponding one or more lanes thereon.
Claims20
A client-side protection method implemented by a network element using a fast electrical squelch with a first optical transceiver and a second optical transceiver, the client-side protection method comprising:
- detecting a protection switching event on a client side affecting one or more lanes associated with the first optical transceiver;
- causing a fast electrical squelch to turn off the affected one or more lanes of the first optical transceiver to provide a Loss of Signal (LOS) thereto;
- and
- subsequent to the LOS to the first electrical transceiver, causing removal of a fast electrical squelch from corresponding one or more lanes of the second optical transceiver to enable the corresponding one or more lanes thereon.
A network element using a fast electrical squelch for client-side protection thereon, the network element comprising:
- a first client optical transceiver;
- a second client optical transceiver;
- and
- one or more line optical transceivers adapted to provide working lines and protect lines for associated lanes from the first client optical transceiver and the second client optical transceiver,
- wherein the network element is adapted to
- detect a protection switching event on a client side of the one or more line optical transceivers affecting one or more lanes associated with the first client optical transceiver,
- cause a fast electrical squelch to turn off the affected one or more lanes of the first client optical transceiver to provide a Loss of Signal (LOS) thereto, and
- subsequent to the LOS to the first electrical transceiver, cause removal of a fast electrical squelch from corresponding one or more lanes of the second client optical transceiver to enable the corresponding one or more lanes thereon.
A pluggable optical transceiver adapted to implement a fast electrical squelch on one or more transmit lanes, the pluggable optical transceiver comprising:
- a plurality of receiver optics;
- a plurality of transmitter optics;
- and
- a host interface communicatively coupled electrically to the plurality of receiver optics and the plurality of transmitter optics and coupled electrically via a plurality of pins to a host device;
- wherein the plurality of pins comprises a plurality of transmitter data pins, and
- wherein, responsive to detection by a network element housing the pluggable optical transceiver of a protection switching event on a client side affecting one or more active lanes associated with corresponding transmitter data pins, the pluggable optical transceiver is adapted to detect a fast electrical squelch to the corresponding transmitter data pins from the network element to provide a Loss of Signal (LOS) thereto and to turn off the corresponding plurality of transmitter optics based thereon.
Dependencies are inferred from the claim text.