摘要:
A network element for a telecommunications network includes a port for connection to a transmission line of the telecommunications network. A plurality of transmission line interfaces each include a scheduler to transmit traffic in port transmission slots allocated to the transmission line interface. An interface controller is stored in a storage medium of the network element. The interface controller is operable to selectively couple at least two transmission line interfaces to the port and to allocate a disparate portion of port transmission slots to each of the transmission line interfaces coupled to the port.
摘要:
A system includes a communication device that includes a number of interface cards and a switching complex. Upon receiving a data signal, an input card modifies header bits of the data signal to identify an input port on which the data signal was received. The switching complex uses the modified header bits to communicate the data signal to an output card and associated output port. In a particular embodiment, the switching complex may also modify header bits to identify the input card.
摘要:
A system is provided for providing a protection path for connection-oriented signals in a telecommunications network comprising a plurality of nodes. The system includes a source node, a destination node and a penultimate node. The source node is operable to transmit traffic. The destination node is operable to receive traffic from the source node. The penultimate node is operable to receive traffic from the source node, to transmit traffic directly to the destination node, to designate one of the nodes as a reflector and to generate a first segment of a protection path from the penultimate node through the reflector to the destination node.
摘要:
A method of transporting asynchronous transfer mode cells and time-division multiplexed information over a common fiber ring includes receiving a plurality of incoming signals comprising asynchronous transfer mode cells, legacy data, or time-division multiplexed information, formatting the plurality of incoming signals into a first plurality of incoming transport signals comprising asynchronous transfer mode cells and a second plurality of incoming transport signals comprising time-division multiplexed information, constructing from the first plurality of incoming transport signals a first outgoing synchronous transfer mode signal comprising at least one asynchronous transfer mode cell, constructing from the second plurality of incoming transport signals a second outgoing synchronous transfer mode signal comprising time-division multiplexed information, and transmitting the first and second outgoing synchronous transfer mode signals over a common fiber ring.
摘要:
A network adapter with high throughput data transfer circuit to optimize network data transfers, with host receive ring resource monitoring and reporting is disclosed. Time critical network data is transferred between the network adapter and the host computer system by means of a high throughput data transfer circuit. The high throughput data transfer circuit is designed to provide throughput equal to the bandwidth of a high speed local area network such as the Fiber Distributed Data Interconnect. The high throughput data transfer circuit will inform the local intelligence of the network adapter if the network adapter has used up all host computer system memory allocated for storing data received from the network. Adapter management data is transferred between the network adapter and the host computer system local area network through a lower throughput data transfer circuit.
摘要:
The invention is directed to apparatus, systems and methods enabling a service provider to establish an optical demarcation point located at or within equipment controlled at least in part by a customer's domain such that the service provider's domain is able to directly control access of an optical signal to their domain, while simultaneously offering one or more of equipment redundancy for the remote optical demarcation control equipment located at the service provider's edge node, equipment redundancy for transceiver equipment providing hot-standby optical signal origination, or hot-standby facility redundancy where one end of said facility redundancy is located at said service provider's edge node.
摘要:
A method and system for transporting traffic having disparate qualities of service classes across a packet-switched network includes receiving at an ingress node of a network a plurality of packets each comprising a quality of service (QoS) class defined externally to the network. Packets having a QoS class comprising delay bound guarantees and a low drop priority are combined into a first internal QoS class. Packets having a QoS class comprising a flexible drop priority and no delay bound guarantees are combined into a second internal QoS class. Packets having a QoS class including no delivery guarantees are combined into a third internal QoS class. The packets are transmitted in the network based on their internal QoS class.
摘要:
A method and system for transporting traffic in a packet-switched network segments high priority pass-through traffic from low priority pass-through traffic. The high priority pass-through traffic is transmitted on an egress link preferentially over the low priority pass-through traffic and ingress high priority local traffic. The ingress high priority local traffic is transmitted on the egress link preferentially over the low priority pass-through traffic.
摘要:
The invention is directed to apparatus, systems and methods enabling a service provider to establish an optical demarcation point located at or within equipment controlled at least in part by a customer's domain such that the service provider's domain is able to directly control access of an optical signal to their domain.
摘要:
The invention is directed to systems and methods for re-arranging optical spectrum utilization so that unallocated portions of the spectrum may be made contiguous. Rearrangement of optical spectrum is accomplished by moving a channel from its initial spectral location to a targeted spectral location by reserving additional spectrum for that channel that at least includes the targeted spectral location, shifting the channel to the targeted location and then collapsing the reserved spectrum around the targeted location to cover the minimal required spectrum for the channel allocation of the channel. In some cases, a secondary channel can be used as an alternate source to carry user traffic while the first channel is shifted to the targeted location.