Microsoft Technology Licensing, LLC

Luis Irun-briz

Umesh Krishnaswamy

Himanshu Raj

Paul David Mattes

According to examples, an apparatus includes a processor that receives a request from a requester apparatus to access a target apparatus. The processor may provide a token valid to the requester apparatus upon determining that the requester apparatus is authenticated to access the target apparatus, in which the token complies with and is sent via a centralized authentication and authorization protocol. The processor may also receive an access check message from the target apparatus, in which the access check message includes the token and the identity of the requester apparatus. In addition, the processor may enable the target apparatus to control access to the requester apparatus. The apparatus disclosed herein enable for the retrofitting of secure multi-factor or one-time password authentication into systems that rely on a centralized authentication and authorization protocol, such as the TACACS+ or the RADIUS protocol.

Authentication and authorization of requester apparatuses in network systems

Solutions are disclosed that enable capacity-aware local repair of tunnels in packet switched wide area networks (WANs). Traffic engineering agents on the routers are programmed to create the tunnels and include sets of primary and alternate tunnels sharing the same source and destination. A tunnel source router is provided a traffic split for allocating incoming traffic to its primary and alternate tunnels for when the primary tunnel is operating at or near full capacity operation, and another traffic split that shifts at least some traffic from the primary tunnel to the alternate tunnel, when the primary tunnel's capacity drops below a threshold. A tunnel may lose capacity for commonly-occurring reasons, such as a disturbance to cabling and faults in optical transceivers. Traffic engineering agents along the tunnel report capacity to the tunnel source router, permitting the network to respond to capacity changes more rapidly than waiting for network tunnel reconfiguration.

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Sammamish, WA, United States of America

Luis Irun-briz