The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jun. 16, 2020
Filed:
Dec. 29, 2016
Microsoft Technology Licensing, Llc, Redmond, WA (US);
Mahmoud Shawky Elhaddad, Newcastle, WA (US);
Ranjit Puri, Bothell, WA (US);
Deepak Narula, Bellevue, WA (US);
Madhan Sivakumar, Seattle, WA (US);
Vikas Bhardwaj, Redmond, WA (US);
Harish Kumar Chandrappa, Bothell, WA (US);
Daniel M. Firestone, Seattle, WA (US);
Xuan Zou, Seattle, WA (US);
Keith Loren Mange, Beaux Arts, WA (US);
Manish Tiwari, Bellevue, WA (US);
Keerthi Shankar, Bothell, WA (US);
Microsoft Technology Licensing, LLC, Redmond, WA (US);
Abstract
An overlay network refers to a network that is implemented as various different virtual resources on a physical network referred to as an underlay network. Diagnostics are performed on the overlay network by injecting diagnostic packets from a source endpoint targeting a target endpoint. These endpoints can be in the overlay network, on-premises with the other endpoint but in a different overlay network, or off-premises form the other endpoint. The diagnostic packets include a data packet encapsulated with a diagnostic encapsulation header that can be removed by a network element in the underlay network to allow processing of the data packet, and then added back on. The network element maintains trace information that is a record of receipt of the diagnostic packet and operations performed on the diagnostic packet. A tracing service collects and analyzes this trace information from the various network elements.