Microsoft Technology Licensing, LLC

Gary Randall Ratterree

Jeff Cox

Luyuan Fang

Fabio Chiussi

Nasser Elaawar

Edet Nkposong

Darren Loher

Deepak Bansal

Yi Li

Somesh Chaturmohta

Gerald Roy Degrace

Vijay Gill

Jeffrey Todd Cohen

Mahesh Kumar Nayak

Gaurav Thareja

Brian Drew Lehr

Alireza Khoshgoftarmonfared

Mark A Kasten

Venkata Praneeth Naidu Sanapathi

Scott W Hanberg

A route anomaly detection and remediation system analyzes a prefix for each route received to validate the route. A route monitoring component provides a centralized querying system for all routers from all devices to study routing history. A route collection component receives and stores all routes from multiple routers at a server. A set of microservice analysis components performs prefix analysis on each received route. Each microservice analysis component analyzes one or more portions of the prefix for each route to detect hijacked routes, leaked routes, withdrawn routes and/or other unhealthy routes before the routes are utilized for routing traffic on the network. The analysis performs new prefix validation and identifies healthy routes. Alerts identifying invalid routes are transmitted to an incident management system. Healthy routes are approved for usage by routers on the network to prevent network outages while improving network reliability, availability and stability.

Route anomaly detection and remediation

Internet bound traffic that is being routed through a particular interface within an edge router can, under some circumstances, be moved to a different interface. In some situations, one or more Internet protocol (IP) flows can be moved to a different interface within the same edge router. In other situations, one or more IP flows can be moved to a different interface within a different edge router. Decisions to move Internet traffic to a different interface can be based on information about interfaces within the various edge routers in a cloud computing provider's network, information about IP flows that are being sent through the various interfaces, peering capacity information and information about the latency associated with particular Internet paths. Some or all of the information that is used in connection with traffic steering decisions can be based on real-time measurements.

Dynamic egress traffic steering for large scale cloud network

Various techniques for partitioning a computer network is disclosed herein. In certain embodiments, control plane functions (e.g., computation of network routes) and/or forwarding plane functions (e.g., routing, forwarding, switching) may be partitioned and performed individually on per domain basis based on (1) a network configuration of a particular domain (e.g., end points and/or lower-level domains in the particular domain); and (2) one or more higher-level domains connected to the particular domain in the hierarchy. Thus, a particular domain can manage various network operations of the domain without concerns regarding end points or network nodes in other domains of the hierarchy. Thus, network configuration and operation may be partitioned to reduce hardware costs and operational complexity even as the size of the overall computer networks increases.

Method for scalable computer network partitioning

Various techniques for migrating virtual entities via a label based underlay network is disclosed herein. In one embodiment, a method includes receiving packets associated with migrating a virtual machine from an originating network node of the underlay network to a target network node of the underlay network. The received packets individually include a label associated with a network path from the originating network node to the target network node in the underlay network. In response to receiving the packets, the method includes examining the labels of the packets to determine the network paths associated the labels and forwarding the packets following the determined network paths in the underlay network.

Virtual machine migration using label based underlay network forwarding

Various techniques for managing communications backup for computer networks are disclosed herein. In one embodiment, a method includes detecting an abnormal operating condition at a primary network node, the primary network node being coupled to a computing device via a first optical connection between an optical switch and the primary network node. In response to the detected abnormal operation condition, the method includes prompting the optical switch to switch from the first optical connection to a second optical connection between the optical switch and a standby network node. The method further includes instructing the standby network node to facilitate communications with the computing device based on the replicated network configuration.

Backup communications scheme in computer networks

Method for end point identification in computer networks

Growing community of inventors

Kirkland, WA, United States of America

Gary Randall Ratterree