DISAGGREGATED OPTICAL TRANSPORT NETWORK SWITCHING SYSTEM
First Claim
1. A method for switching optical signals as Ethernet packets, the method comprising:
- in an optical transport networking (OTN) switching system further comprising;
an Ethernet fabric having a number M of Ethernet switches, assigning a variable i having a value ranging from 1 to M to denote the ith Ethernet switch of the M Ethernet switches, wherein M is greater than one; and
a plurality of plug-in universal (PIU) modules each having M PIU ports including a first PIU module, a second PIU module, and a third PIU module, wherein an ith PIU port of each of the plurality of PIU modules is connected to the ith Ethernet switch of the Ethernet fabric,establishing a first optical data unit (ODU) switched connection from the first PIU module to the third PIU module via the Ethernet fabric and a second ODU switched connection from the second PIU module to the third PIU module via the Ethernet fabric;
selecting, for the first PIU module, a first sequential order of the M Ethernet switches;
selecting, for the second PIU module, a second sequential order of the M Ethernet switches, wherein the second sequential order is different from the first sequential order;
receiving a first ODU at the first PIU module and generating a first Ethernet packet corresponding to the first ODU, wherein the first ODU is for transmission via the first ODU switched connection;
transmitting the first Ethernet packet from a first port of the first PIU module, wherein the first port is selected based on the first sequential order;
receiving a second ODU at the second PIU module and generating a second Ethernet packet corresponding to the second ODU, wherein the second ODU is for transmission via the second ODU switched connection; and
transmitting the second Ethernet packet from a second port of the second PIU module, wherein the second port is selected based on the second sequential order.
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Accused Products
Abstract
Methods and systems of a disaggregated optical transport network (OTN) switching system that include using plug-in universal (PIU) modules each having multiple ports for OTN to Ethernet transceiving and an Ethernet fabric as a switching core are disclosed. An OTN over Ethernet module in each of the PIU modules may enable various OTN functionality to be realized using the Ethernet fabric which may include multiple Ethernet switches. An ith port of the multiple ports of each PIU module may be connected to the ith Ethernet switch of each of the Ethernet switches. A PIU module may be associated with a respective sequential order of the Ethernet switches. The PIU module may transmit an Ethernet packet from an ith port of the PIU module corresponding to the ith Ethernet switch, where the ith port is selected based on the respective sequential order of the Ethernet switches.
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Citations
20 Claims
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1. A method for switching optical signals as Ethernet packets, the method comprising:
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in an optical transport networking (OTN) switching system further comprising; an Ethernet fabric having a number M of Ethernet switches, assigning a variable i having a value ranging from 1 to M to denote the ith Ethernet switch of the M Ethernet switches, wherein M is greater than one; and a plurality of plug-in universal (PIU) modules each having M PIU ports including a first PIU module, a second PIU module, and a third PIU module, wherein an ith PIU port of each of the plurality of PIU modules is connected to the ith Ethernet switch of the Ethernet fabric, establishing a first optical data unit (ODU) switched connection from the first PIU module to the third PIU module via the Ethernet fabric and a second ODU switched connection from the second PIU module to the third PIU module via the Ethernet fabric; selecting, for the first PIU module, a first sequential order of the M Ethernet switches; selecting, for the second PIU module, a second sequential order of the M Ethernet switches, wherein the second sequential order is different from the first sequential order; receiving a first ODU at the first PIU module and generating a first Ethernet packet corresponding to the first ODU, wherein the first ODU is for transmission via the first ODU switched connection; transmitting the first Ethernet packet from a first port of the first PIU module, wherein the first port is selected based on the first sequential order; receiving a second ODU at the second PIU module and generating a second Ethernet packet corresponding to the second ODU, wherein the second ODU is for transmission via the second ODU switched connection; and transmitting the second Ethernet packet from a second port of the second PIU module, wherein the second port is selected based on the second sequential order. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. An optical transport networking (OTN) switching system comprising:
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an Ethernet fabric having a number M of Ethernet switches, wherein a variable i having a value ranging from 1 to M to denote the ith Ethernet switch of the M Ethernet switches, and wherein M is greater than one; and a plurality of plug-in universal (PIU) modules each having M PIU ports including a first PIU module, a second PIU module, and a third PIU module, wherein an ith PIU port of each of the plurality of PIU modules is connected to the ith Ethernet switch of the Ethernet fabric, the OTN switching system to; establish a first optical data unit (ODU) switched connection from the first PIU module to the third PIU module via the Ethernet fabric and a second ODU switched connection from the second PIU module to the third PIU module via the Ethernet fabric; select a first sequential order of the M Ethernet switches; select a second sequential order of the M Ethernet switches, wherein the second sequential order is different from the first sequential order; receive a first ODU at the first PIU module and generate a first Ethernet packet corresponding to the first ODU, wherein the first ODU is for transmission via the first ODU switched connection; transmit the first Ethernet packet from a first port of the first PIU module, wherein the first port is selected based on the first sequential order; receive a second ODU at the second PIU module and generate a second Ethernet packet corresponding to the second ODU, wherein the second ODU is for transmission via the second ODU switched connection; and transmit the second Ethernet packet from a second port of the second PIU module, wherein the second port is selected based on the second sequential order. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18, 19, 20)
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Specification