摘要:
An optical router and accompanying method utilizing an NxN frequency router and N tunable transmitters. Packets to be routed are "colored" according to their intended destination and applied to an input port of the frequency router such that they appear at a desired output port.
摘要:
A network comprising a plurality of successively interconnected node stages where each node has an associated data connection state and includes a control element, significantly implemented as part of the node itself, for controlling the data connection state of at least one node of the following stage. The network is well suited for optical implementation and is controlled by shifting bits into the network for storage by the control elements rather than relying on spatial light modulators.
摘要:
A method includes comparing a length of a first packet to a threshold, determining that the first packet is a short packet when the length of the first packet is less than the threshold, and determining that the first packet is a long packet when the length of the first packet is greater than or equal to the threshold. The method also includes when the first packet is a long packet placing the first packet in a long packet container and transmitting the long packet container to a photonic switch. Additionally, the method includes when the first packet is a short packet placing a first portion of the first packet in a first short packet container, where the first short packet container includes a sequence number, a source top-of-rack switch (TOR) address, and a destination TOR address and transmitting the first short packet container to an electronic switch.
摘要:
The embodiments of the invention relate to an input module (IM-1, IM-2, IM-3, ..., IM-N) for a switching system (RSS). The input module (IM-1, IM-2, IM-3, ..., IM-N) contains at least one input port configured to receive at least one input data stream. The input module (IM-1, IM-2, IM-3, ..., IM-N) further contains a processing unit configured to determine, whether a data rate of the at least one input data stream to be transmitted from the input module (IM-1, IM-2, IM-3, ..., IM-N) to one of at least twooutput modules (OM-1, OM-2, OM-3, ..., OM-N) of the switching system (RSS) via an optical transmission path by a fixed wavelength optical signal having a fixed wavelength exceeds a maximum transmission capacity of the optical transmission path. The input module (IM-1, IM-2, IM-3, ..., IM-N) even further contains a packet switching module configured to switch at least first data packets of the at least one input data stream to the optical transmission path and to switch at least second data packets of the at least one input data stream to at least one further optical transmission path from the input module (IM-1, IM-2, IM-3, ..., IM-N) to the one of the at least two output modules (OM-1, OM-2, OM-3, ..., OM-N), when the data rate of the at least one input data stream exceeds the maximum transmission capacity. The input module (IM-1, IM-2, IM-3, ..., IM-N) even further contains at least one fixed wavelength optical transmitter module configured to transmit via the optical transmission path the fixed wavelength optical signal that carryies the at least first data packets and even further contains at least one tunable wavelength optical transmitter module reconfigurable to transmit via the at least one further optical transmission path a tunable wavelength optical signal having a tunable wavelength and carrying the at least second data packets. The embodiments further relate to a central control unit (CCU) for a switching system (RSS) and to a switching system (RSS).
摘要:
Embodiments of the present invention disclose a service switching system and a service switching method. The system includes at least two service processing subracks and at least one optical cross-connect subrack. Each service processing subrack is connected to each optical cross-connect subrack by using an optical fiber. Each service processing subrack is configured to: perform service switching for an externally inputted service data electrical signal , convert the service-switched service data electrical signal into an optical signal, and send the optical signal to one or more optical cross-connect subracks; and/or receive a service data optical signal that comes from one or more optical cross-connect subracks, convert the optical signal into an electrical signal, perform service switching, and output the service-switched service data electrical signal. Each optical cross-connect subrack is configured to: receive a service data optical signal that comes from one or more service processing subracks, perform optical cross-connection for the received optical signal, and output the cross-connected optical signal to the one or more service processing subracks. Applying the embodiments of the present invention can reduce interconnection costs of a service switching system.
摘要:
An optical network system includes a master node (101 A) and a plurality of optical switch nodes (101B to 101D), allowing the number of nodes without depending on the number of wavelengths. The master node (101A) is configured to: divide a wavelength path having an arbitrary wavelength into time slots each having a predetermined time period; and allocate the time slots to each of the optical switch nodes (101 B to 101 D). Each of the optical switch nodes (101B to 101D) is configured to: synchronize the time slots based on information delivered from the master node (101A); and thereby transmit or receive a data or performs route switching.
摘要:
A data center path switch architecture permits path switching of the signal path of incoming signals to one or more output paths in real time without the need for manual intervention, and without delays associated with current data center network switches. In this architecture, a switching core capable of switching signals directly from the ingress of the switching core to alternate destination ports in real time, either under software or hardware control.
摘要:
According to an optical network-on-chip and a method and an apparatus for dynamically adjusting optical link bandwidth that are provided in embodiments of the present invention, each fixedly interconnected optical transceiver in a cluster in the optical network-on-chip is configured to establish, by using an optical router, a link between the cluster and one cluster in other n-x clusters except the cluster, to exchange an optical signal; and a main controller in the cluster is configured to: allocate x adaptively interconnected transceivers to k fixed links with the heaviest communication traffic according to a set rule and communication traffic of fixed links established by n-x fixedly interconnected optical transceivers in the cluster; and for an adaptively interconnected optical transceiver in the x adaptively interconnected optical transceivers, control, after the adaptively interconnected optical transceiver is allocated to a link in the k fixed links with the heaviest communication traffic, the adaptively interconnected optical transceiver to establish a link, except the fixed link, between two clusters connected by the fixed link.
摘要:
The present invention provides an adaptive compensation control method and module, and an optical switching system, which can quickly determine, before switching of an optical packet, a compensation value of the optical packet, so that after the optical packet is compensated according to the compensation value, an objective of optical signal equalization at a receive port of an optical switch is achieved. The method includes: acquiring optical label information of an optical signal, where the optical label information carries information about a destination receive port of the optical signal; determining, according to the information about the destination receive port of the optical signal, a switching path, in an optical switch switching matrix, of the optical signal; and determining an optical switch compensation value of the optical signal according to a preset compensation value of each optical switch cell on the switching path, where the optical switch compensation value is used to compensate the optical signal. The method is applicable to the field of optical communications technologies.
摘要:
An optical interconnection system and method are provided. The system includes two or more than two basic units (1) that are stacked and interconnected. The basic unit (1) includes an optical network layer (11) and an electrical layer (12). In each basic unit (1), the optical network layer (11) is electrically interconnected with the electrical layer (12); and the optical network layer (11) of each basic unit (1) is optically interconnected with an optical network layer (11) of an adjacent basic unit (1). In this method, through optical interconnection between optical network layers (11), an optical signal is transmitted between the optical network layers (11), and an electrical signal is transmitted at the electrical layer (12), so that signal transmission and data processing are implemented between stacked layers that are optically interconnected. Through optical interconnection in three-dimensional space, a limitation on a quantity of stacked electrical layers is reduced, and efficiency of signal transmission is increased.