公开(公告)号：US20180191471A1

公开(公告)日：2018-07-05

申请号：US15393888

申请日：2016-12-29

Applicant: Microsoft Technology Licensing, LLC

Inventor： Mahmoud Shawky Elhaddad ,  Ranjit Puri ,  Deepak Narula ,  Madhan Sivakumar ,  Vikas Bhardwaj ,  Harish Kumar Chandrappa ,  Daniel M. Firestone ,  Xuan Zou ,  Keith Loren Mange ,  Manish Tiwari ,  Keerthi Shankar

IPC: H04L1/24 ,  H04L29/12 ,  H04L29/06

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.

公开(公告)号：US10686568B2

公开(公告)日：2020-06-16

申请号：US15393888

申请日：2016-12-29

Applicant: Microsoft Technology Licensing, LLC

Inventor： Mahmoud Shawky Elhaddad ,  Ranjit Puri ,  Deepak Narula ,  Madhan Sivakumar ,  Vikas Bhardwaj ,  Harish Kumar Chandrappa ,  Daniel M. Firestone ,  Xuan Zou ,  Keith Loren Mange ,  Manish Tiwari ,  Keerthi Shankar

IPC: H04L1/24 ,  H04L29/12 ,  H04L29/06

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.