Abstract: The method is for automatic provisioning of a device. The system has a device, a hub, a server and a communication device. A communication is established between the device and the hub. The hub characterizes the device as being unmanaged. The hub sends a notification signal to the communication device of an administrator to notify the administrator (56) about the device being characterized as unmanaged. The administrator sends an accept signal to the hub to accept the device. The hub sends a provisioning signal to the device to provision the device and characterizing the device as being managed. The hub delays sending the provisioning signal to the device as long as no accept signal is received from the administrator.

Abstract: The method is for sending information through a topology. A first and second node each having a first node having a first access port, a second access port and a first uplink connected to a first router and a second router, respectively. A third node is provided that has a first access port and a first uplink, the first uplink of the third node being connected to the second access port of the first node. A first packet is sent via the first access port to the second node. The second node adds a first port number to a tag of the first packet and sends the first packet via the first uplink of the second node to the first access port of the first node. The first node receives the first packet via the first access port of the first node. The first node adds the first port number to the tag and adds a first port number of the first access port of the first node to the tag. The first node sends the first packet via the first uplink of the first node to a first router.

Abstract: The method is for sending information through a node and includes providing a node that has a first access port, a second access port, a first uplink and a second uplink. A first packet is sent via the first access port to the node. When the node is in a leaf mode, the node creates a tag inside the first packet. The tag contains a first port number corresponding to the first access port. When the node is in a branch node, the node adds the first port number to the tag and sends the packet in the first uplink and the second uplink. A second packet, received via the second access port, is sent via the first uplink of the node. The node receives the second packet. The node removes a second port number that corresponds to the second access port from the tag. The node sends the second packet via the second access port to another node or customer lower down in the node tree.

Abstract: The tandem node system has a first node having an access link connected to a first port group of a first customer and a first network link connected to a first router. A second node has an access link connected to the first port group of the first customer and a first network link connected to a second router. The first node has a second network link connected to a second network link of the second router.

Abstract: The method is for sending information through a topology. A first and second node each having a first node having a first access port, a second access port and a first uplink connected to a first router and a second router, respectively. A third node is provided that has a first access port and a first uplink, the first uplink of the third node being connected to the second access port of the first node. A first packet is sent via the first access port to the second node. The second node adds a first port number to a tag of the first packet and sends the first packet via the first uplink of the second node to the first access port of the first node. The first node receives the first packet via the first access port of the first node. The first node adds the first port number to the tag and adds a first port number of the first access port of the first node to the tag. The first node sends the first packet via the first uplink of the first node to a first router.

Abstract: A method of restoring a failure in a network topology. A first node is provided that has a first access link connected to a first port group of a first customer and a first network link connected to a first active router. A second node has a first access link connected to the first port group of the first customer and a first network link connected to a second stand-by router. The first node has a second network link connected to the second node via a second network link of the second node. If the first access link of the first node or the first node itself fails, the second node switches to the active state. If the second network link of the first node fails, the second node switches to the active state. In this way the traffic will be forward to the first router and/or the second router.

Abstract: The tandem node system has a first node having an access link connected to a first port group of a first customer and a first network link connected to a first router. A second node has an access link connected to the first port group of the first customer and a first network link connected to a second router. The first node has a second network link connected to a second network link of the second router.

Abstract: The method is for sending information through a node and includes providing a node that has a first access port, a second access port, a first uplink and a second uplink. A first packet is sent via the first access port to the node. When the node is in a leaf mode, the node creates a tag inside the first packet. The tag contains a first port number corresponding to the first access port. When the node is in a branch node, the node adds the first port number to the tag and sends the packet in the first uplink and the second uplink. A second packet, received via the second access port, is sent via the first uplink of the node. The node receives the second packet. The node removes a second port number that corresponds to the second access port from the tag. The node sends the second packet via the second access port to another node or customer lower down in the node tree.

Abstract: The present invention relates to a method and an arrangement for dynamic signalling in a network, such as a Dynamic Synchronous Transfer Mode (DTM) network. The network's bandwidth is divided into cycles, which in turn are divided into control slots for control signalling and data slots for transferring data. Preferably, each or certain nodes have a node controller, which control the access to slots. According to the invention data slots are converted into control slots, called dynamic control slots, or control slots are converted into data slots in order to change the signalling capacity of a node. The dynamic control slots may be used for point-to-point, multicast or broadcast signalling.

Abstract: The present invention relates to a method and an arrangement for centralized and distributed management of capacity (communication resources) in a circuit switched network with shared medium topology (e.g. bus or ring topology), of DTM type (digital synchronous transmission), in which the network use the capacity which are divided into cycles, which in turn are divided into control time slots for signaling and data time slots for data transmission, and where each data time slot is associated with a token. In the centralized version is a first node, named server node, assigned token corresponding to the in one direction sent data time slots on the communication link (e.g., bus or ring). A second node requests token corresponding to a certain capacity from the server node and the server node reserves and transfers tokens corresponding to the capacity requested to the other node in the case the server node has requested capacity unused.

Abstract: The present invention relates to a defragmentation method and arrangement for increasement of the average block size of free tokens in the nodes of a DTM (Dynamic Synchronous Transfer Mode) network. The defragmentation comprises defining a home node for each token at network startup in such way that the tokens sharing the same home node will always define at least partly a continuous slot range, sending back free tokens to home nodes when a significant time has passed and, merging two or more slot-consecutive tokens with the same slot range into a single token when existing in the free pool of a node. The defragmentation can be realized in a central or a distributed token management scheme.

Abstract: The present invention relates to a slot reuse method and arrangement for increasement of the throughput in a DTM (Dynamic Synchronous Transfer Mode) network. The slot reuse according to the invention comprises extending the DTM block token format to include parameters describing the segment(s) between source and destination node, reserving block token capacity only on the segment(s) between source and destination node, and enabling simultaneous transmissions in the same slot over disjointed segments of the network. The slot reuse can also comprise merging two or more segment-consecutive tokens, representing the same slot range, into a single token when existing in the free pool of a node.