Invention Grant
- Patent Title: Subnet stretching via layer three communications
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Application No.: US16290534Application Date: 2019-03-01
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Publication No.: US10972341B2Publication Date: 2021-04-06
- Inventor: Uma Mahesh Mudigonda
- Applicant: Microsoft Technology Licensing, LLC
- Applicant Address: US WA Redmond
- Assignee: Microsoft Technology Licensing, LLC
- Current Assignee: Microsoft Technology Licensing, LLC
- Current Assignee Address: US WA Redmond
- Priority: IN201641017781 20160524
- Main IPC: H04L12/24
- IPC: H04L12/24 ; H04L29/12 ; H04L12/46 ; H04L29/08 ; G06F9/46 ; G06F9/455 ; H04L12/715 ; H04L12/947 ; H04L12/761

Abstract:
Systems and methods for stretching a subnet that do not require level 2 (L2) communications to be handled are provided. A user may gradually migrate VMs or applications instead of migrating an entire subnet at one time, may fail-over specific VMs without failing-over an entire subnet or renumbering IP addresses, may deploy applications to the cloud without the need to create a VPN, or may enable hybrid network connectivity without modifying routes or (re)configuring edge routers, among other benefits. The domains over which the subnet are stretched include a virtual gateway which is associated with the layer-3 (L3) addresses of the other domains. L3 communications within the domain are routed within that domain, and L3 communications within the subnet in another domain are intercepted by the local gateway, are passed to the remote gateway of the other domain, and are forwarded to the destination while leveraging L3 communications.
Public/Granted literature
- US20190199587A1 SUBNET STRETCHING VIA LAYER THREE COMMUNICATIONS Public/Granted day:2019-06-27
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