A system and method of managing a network that includes assets are described. The method includes modeling the network as a directed graph with each of the assets represented as a node and determining alternative paths to each node from each available corresponding source of the node. The method also includes computing upstream robustness of each node, computing upstream robustness of the network, and computing downstream criticality of each node. Managing the network and each asset of the network is based on the upstream robustness and the downstream criticality of each node.

Methods and systems for path selection involving remote access protocols and/or user behavior are described herein. A request, from a first computing device, for content hosted on a second computing device may be received. Based on network state metrics, remote access protocol metrics, and/or user experience metrics, a path of a plurality of paths between the first computing device and the second computing device may be selected. The path need not be the most direct path between the first computing device and the second computing device, and may comprise remote access to a computing device on an intermediary server. Based on user behavior analysis performed with respect to user input data, a path may be re-selected, and/or the network state metrics, remote access protocol metrics, and/or user experience metrics may be weighted.

Joining subnets in mobile ad-hoc network (MANET) environment. A method includes, based on SNR, power and data rate information between a first gateway node for a first subnet and a second gateway node for a second subnet, determining a rate at which the first and the second subnets can connect if nodes in the first subnet reduce signal transmit rate to a predetermined level. The method further includes as a result of determining that the determined rate meets or exceeds a predetermined threshold, then joining the first and second subnets by joining the first and second subnets via the first and second gateway nodes and causing nodes in the first subnet to reduce signal transmit rate to the predetermined level.

A data link error feedback signaling system includes a transmitting network device and a receiving network device. The receiving network device may be operable to receive a network data unit from the transmitting network device over a data link, detect an error in the network data unit, and provide data link integrity information based on the error to the transmitting network device. The receiving network device may provide the data link integrity information by marking the data link flawed in a routing protocol, transmitting the data link integrity information via an informational protocol, and so on. The transmitting network device may respond to the data link integrity information, such as by marking the data link less preferred, marking the data link down, transmitting an alarm regarding the data link to a network operator, omitting taking an action upon determining that errors are below an error threshold, and so on.

Techniques for migrating a plurality of communications services in a data communication network are disclosed. Aspects include accessing a migration map for the plurality of communications services in the data communication network; identifying a communications dependency between a first service and a second service in the plurality of communications services, wherein according to the migration map the first service is configured to migrate from a first route to a second route, the second service is configured to migrate from a third route to a fourth route, and the third route overlaps with the second route; determining, based on the identified communications dependency, a migration sequence for migrating the plurality of communications services in the data communication network; and migrating the plurality of communications services from a first plurality of configurations to a second plurality of configurations according to the migration sequence.

Configuration of a communication network can include obtaining a graph representing the communication network, generation of a the preplan assignment for the communication network, and configuration of the communication network according to the preplan assignment. The graph can be associated with shared risk link groups (SRLGs) and demands. Generation of the preplan assignment can include obtaining a headend assignment between each one of the demands and a headend vertex on the graph. Generation of the preplan assignment can further include obtaining a SRLG-distinguishing assignment between each headend and a corresponding reporting edge set. The reporting edge set for a headend can include sufficient edges to distinguish among SRLGs affecting the headend. Generation of the preplan assignment can further include obtaining a notification path assignment between each headend and each reporting edge in the corresponding reporting edge set for the headend.

There is provided mechanisms for routing packets between a terminal device and a control system node via intermediate nodes on wireless paths in a wireless network. A method includes obtaining information on disturbances of wireless paths used for communicating packets of a traffic flow between the intermediate nodes in the wireless network. The method includes determining, based on the information on disturbances, mutual correlation between the disturbances of the wireless paths. The method includes routing the packets of the traffic flow between the terminal device and the control system node via some of the intermediate nodes and along disjoint wireless paths, whereby the packets are transmitted in parallel on the disjoint wireless paths, and wherein the disjoint wireless paths have mutual correlation not higher than a threshold correlation value.

A data link error feedback signaling system includes a transmitting network device and a receiving network device. The receiving network device may be operable to receive a network data unit from the transmitting network device over a data link, detect an error in the network data unit, and provide data link integrity information based on the error to the transmitting network device. The receiving network device may provide the data link integrity information by marking the data link flawed in a routing protocol, transmitting the data link integrity information via an informational protocol, and so on. The transmitting network device may respond to the data link integrity information, such as by marking the data link less preferred, marking the data link down, transmitting an alarm regarding the data link to a network operator, omitting taking an action upon determining that errors are below an error threshold, and so on.

Networks comprising multiple non-overlapping communication topologies are presented. The networks can include a fabric of interconnected network nodes capable of providing multiple communication paths among edge devices. A topology manager constructs communication topologies according to restriction criteria based on required security levels (e.g., top secret, secret, unclassified, etc.). Established topologies do not have overlapping networking infrastructure to within the bounds of the restriction criteria as allowed by the security levels.

The present application refers to a method and a system for reliably forwarding data packets in a source-selected path routing network including a plurality of autonomous systems. For this purpose, a data plane of each of the plurality of autonomous systems that comprises one or more border routers and a control plane of each of the plurality of autonomous systems that comprises a control service are split into two or more shards. Each of said shards contains exactly one control service and at least one border router and is responsible for processing, storing and propagating path information only for a subset of existing links between an autonomous system and a neighboring autonomous system within the source-selected path routing network. Hence, in the source-selected path routing network, each individual shard is not critical and thus can fail without compromising the availability of the entire system.