Abstract: The present disclosure relates to methods and devices for mitigating the impact from Internet attacks in a Radio Access Network, RAN, using Internet transport. This object is obtained by a method performed in network node in a Core network, CN, of mitigating the impact from Internet attacks in a Radio Access Network, RAN, using Internet transport. The method comprises receiving, from at least a network node in a Radio Access Network, RAN, an intrusion detection report, the intrusion detection report comprises information about an Internet attack in the RAN. The method further comprises selecting based on the information, a mitigation action, the mitigation action mitigating the impact of the attack on the RAN service level. Further the method comprises performing the selected mitigation action to mitigate the impact on the RAN service level.

Abstract: Method and radio base station for adapting a Radio Access Network, RAN, capability, in response to variations in transport characteristics, such as data transfer rate, maximum available bandwidth, and maximum used bandwidth, of a backhaul network. The radio base station is arranged to communicate data between a RAN and the backhaul network, said method comprising to obtain, by a controller, information related to the transport characteristics of the backhaul network. The method comprises further to determine, by the controller, based on the obtained information, an output level of the radio base station, and to adjust, by the controller, the output level of the radio base station to the determined output level.

Abstract: There is provided a radio base station suitable for a wireless communications network. The radio base station is arranged to request a local IP address from a DHCP server the request including a local port number. The radio base station is further arranged to receive a response from the DHCP server comprising a local IP address, an external IP address and port forwarding information. The radio base station is also arranged to send a service record update to a DNS server, the service record update comprising the service capability information of the radio base station, the external IP address, and the port forwarding information.

Abstract: A network node enables a wireless device to communicate with a local service device, such as a printer or a projector, of a Local Area Network (LAN) or Wireless Local Area Network (WLAN). The network node is connected both to a communication network and to the LAN or WLAN. The method includes identifying a multicast Domain Name System (mDNS) request, where the mDNS request is received from the wireless device, and assigning a LinkLocal (LL)-address for the wireless device. The method retrieves a local IP-address of an Authentication and Authorisation Service (AA-S) having authorisation information regarding a local service device, and authenticates, with the AA-S which type of services, that the wireless device is authorised to use. A local IP-address of the local service device is retrieved, and service data is conveyed between the wireless device and the local service device, by applying the LL-address of the local service device.

Abstract: A synchronisation module is associated with a network node of a communication network which includes at least one Synchronisation Master entity. The synchronisation module has knowledge of a plurality of Synchronisation Master references. Endpoints of paths of the plurality of Synchronisation Master references are obtained. Each of the paths extends between one Synchronisation Master entity and the first or the second access network node. The paths are obtained from a synchronisation report module based on the obtained endpoints. For each of the Synchronisation Master references, a first path and a second path of the obtained paths are selected. A time synchronisation inaccuracy value between the first and the second access network node is calculated based on the selected paths. A Synchronisation Master reference is selected based on the calculated time synchronisation inaccuracy values, and the first and the second access network nodes are notified which Synchronisation Master reference was selected.

Abstract: The present invention relates to embodiments of nodes and methods in a node in a data telecommunication network. The method and embodiments thereof enables control of data packet traffic belonging to different access technologies to be sent with the same Quality of Service class over an aggregated encrypted Internet Security tunnel, IPsec tunnel. The received data packets are encrypted and encapsulated as payload in an IP data packet to be sent over an aggregated encrypted IPsec tunnel, which header is marked with an access technology index comprising a code for the identified access technology of the one or more received data packets encrypted and encapsulated as payload in the IPsec tunnel and a hash identifier code enabling enhanced scheduling and routing.

Abstract: The present invention relates to methods and arrangements for service specific bandwidth policy configuration in a data network (100) comprising a service management server (150), an access node (120) and an intermediate node (130, 140). The methods of the present invention comprise the steps of receiving a message comprising a service configuration for a client device connected to the data network and information regarding the bandwidth policy of the service configuration from the service management server (150). A service according to the information regarding the bandwidth policy of the service configuration is configured in the access node (120) and the intermediate node (130, 140), respectively.

Abstract: A synchronization module is associated with a network node of a communication network which comprises at least one Synchronization Master entity. The synchronization module has knowledge of a plurality of Synchronization Master references. Endpoints of paths of the plurality of Synchronization Master references are obtained. Each of the paths extends between one Synchronization Master Entity and the first or the second access network node. The paths are obtained from a synchronization report module based on the obtained endpoints. For each of the Synchronization Master references, a first path and a second path of the obtained paths are selected. A time synchronization inaccuracy value between the first and the second access network node is calculated based on the selected paths. A Synchronization Master reference is selected based on the calculated time synchronization inaccuracy values, and the first and the second access network node are notified which Synchronization Master reference was selected.

Abstract: The present invention relates to nodes and method in such nodes of a Radio Access Network or a Backhaul Network connected to the Radio Access Network comprising a number of Radio Base Station nodes being connected to the Backhaul Network comprising communication paths for transferring data packets. There are nodes configured to support the performing of a method involving receiving a notification indicating congestion in one or more data paths of the Backhaul Network and deciding based on current radio information and data path information to initiate handover of data packet traffic from one Radio Base Station to another Radio Base Station for solving the congestion problem in the indicated one or more data communication paths.

Abstract: The present invention relates to a method and node arrangement for evaluating available conditions of a data path between a sending node and a destination node in a data communications network by means of an active measurement process comprising one or more measurement sessions. The data path and sending node comprises a sending node interface. The method involves performing a measurement session of said data path for determining a measurement result, and estimating one or more available conditions of a data path using the measurement result and one or more initial parameter values as input in a calculation algorithm. The method further comprises setting one initial parameter value for the calculation to a maximum bandwidth capacity based on the lowest bandwidth capacity value of the interfaces of both nodes sending said probe packet sequences during said measurement session.

Abstract: The present application discloses, among other things, an improved demarcation device. In some embodiments, the demarcation device includes: a physical layer module for receiving frames transmitted to the device; and a device configuration protocol layer configured to: (a) receive the frame after the frame is received from the physical layer, (b) determine whether the frame is a valid device configuration protocol data unit (DCPDU), and (c) execute a command if the frame is a valid DCPDU.

Abstract: This disclosure provides methods and an access point node for ensuring proper and correct packet based synchronization in data communications systems and networks at distribution of synchronization packets from one Access Point over a WIFI transport link to another Access Point. The access point node provides dynamic transmission rate adaption with different coding and modulation schemes. The access point node comprises an identifier unit to identify each received synchronization packet, and further comprises a controller configured to set the transmission rate for said synchronization packet according to a predetermined synchronization packet transmission rule.

Abstract: Method in a transport network node, for distributing an available bandwidth between different access technologies utilising the transport network node, the transport network node being associated with at least one network node. The method comprises obtaining an allocation scheme reflecting a desired distribution of bandwidth between the different access technologies, and receiving information from the at least one network node, regarding an access technology of the at least one network node. Furthermore, the method comprises scheduling transport of packet data, based on the received information regarding the access technology and the obtained allocation scheme. By implementing functionality in transport network nodes for scheduling transport of packet data based on the access technology, and number of active users, and/or number of active sessions, etc., the transport network node is enabled to allocate an appropriate amount of transport capacity fair between users of different access technologies.

Abstract: A method and intermediate node for service specific configuration of Quality of Service (QoS), preferably end-to-end QoS, in a data network by establishing and enforcing a service specific QoS configuration for a given service supported by a client device. The client device is adapted to be connected to a data network including a service management server and the intermediate node. The intermediate node receives from the service management server, a message including a service configuration for the given service. The service configuration includes information regarding the service specific QoS configuration.

Abstract: The present invention relates to methods and routing and/or switching devices for determining a path maximum transmission unit MTUP(n) size for transmission paths between edge nodes in a data communications network and for updating routing tables associated with the routing and/or switching devices in said edge nodes, which are linked together with link interfaces L(i) constituting transmission paths P(n) for data packet transmission, each link interface L(i) having a link interface maximum transmission unit MTUL(i) size. The methods involve the acquisition of a link interface maximum transmission unit MTUL(i) size for a link interface L(i), and the updating the routing table by calculating the path maximum transmission unit MTUP(n) size for each destination that involves the link interface L(i) for the acquired link interface maximum transmission unit MTUL(i) size. New link-state protocols for distributing the link interface maximum transmission unit MTUL(i) size is also provided.

Abstract: A pluggable transceiver is provided for achieving a redundant connection in a communication network when inserted in a communication network node of the communication network. The pluggable transceiver is connected to a first cable on a first input and is directly connected to two or more data-plane ports when inserted. The pluggable transceiver comprises a converter to receive incoming data in a first representation and convert the incoming data from the first representation into a second representation, and a distributor to distribute the incoming data to a first data-plane port among the two or more data-plane ports in the second representation. The pluggable transceiver comprises a first selector to select the first data-plane port and receive outgoing data from the first data-plane port in the second representation, where the first data-plane port is active.

Abstract: A method performed in a network element for reacting to communication performance measurements that fall outside of communication performance thresholds. The network element generates a communication performance measurement between a first endpoint and a second endpoint, wherein each endpoint is a point of communication in the network and at least the first endpoint resides on the network element. The network element retrieves a communication performance threshold and determines whether the communication performance measurement falls outside of the communication performance threshold. The network element generates a trigger associated with the communication performance measurement and the communication performance threshold when it is determined that the communication performance measurement falls outside of the communication performance threshold.

Abstract: In accordance with an embodiment of the present invention, a network node is presented which is configured to associate each of a plurality of MAC addresses with an IP address on a network level. The network node is configured to, upon reception of a link level message comprising a target IP address and destined to multiple network nodes, compare the target IP address with associated MAC/IP addresses on a network level, and to selectively send the received link level message to at least one other network node on a link level based on the network level comparison. A method and a computer program product are also presented, according to embodiments of the present invention.

Abstract: The present invention relates to method and arrangements to measure connectivity between Two Way Active Measurement Protocol TWAMP entities comprising a session-server (15) and session-reflectors (16-23) in a communication network. The method comprises steps like: Dividing in the session—server (15), the session-reflectors (16-23) into at least one defined group (11-14)of session-reflectors (16-17,18-9,20-21,22-23); Transmitting a test session (1;1-4) from the session-server (15) to the session-reflectors(16-7;16-23) by using Source Specific Multicasting, said test session comprising at least one test packet (1a-1c;1a-4c) 1 being destined to at least one session-reflector (16-17;16-23) in at least one defined group (11;11-14); Replying to the at least one test packet (1a-1c;1a-4c) by the at least one session-reflector (16-17;16-23).

Abstract: A method for performing a link aggregation on a link aggregation group, comprising a plurality of transport links, for sessions received at a first network node which is connected to a second network node via the link aggregation group. The method, which is to be executed in the first network node, enables link aggregation optimization for the sessions destined for the second network node by selectively choosing transport link for the sessions on the basis of the load of the transport links. The suggested link aggregation results in a packet load balancing and improved bandwidth utilization. An arrangement suitable for executing the suggested method is also provided.