Invention Grant
- Patent Title: LISP stretched subnet mode for data center migrations
- Patent Title (中): LISP延伸子网模式用于数据中心迁移
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Application No.: US14220922Application Date: 2014-03-20
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Publication No.: US09276871B1Publication Date: 2016-03-01
- Inventor: Santiago Vazquez Freitas , Patrice Bellagamba
- Applicant: CISCO TECHNOLOGY, INC.
- Applicant Address: US CA San Jose
- Assignee: CISCO TECHNOLOGY, INC.
- Current Assignee: CISCO TECHNOLOGY, INC.
- Current Assignee Address: US CA San Jose
- Agency: Patent Capital Group
- Main IPC: G06F15/167
- IPC: G06F15/167 ; H04L12/911 ; H04L29/12

Abstract:
The present disclosure describes methods and systems for enabling a migration of network elements from a first location to a second location remote from the first location without changing the Internet Protocol (IP) addresses, subnet mask, and/or default gateway of the network elements. The first location has a first Locator/Identifier Separation Protocol (LISP) router configured on a stick and the second location having a second LISP router configured on a stick. Both the first LISP router and the second LISP router are on the same subnet. Effectively, LISP provides a Layer 3 extension stretching a subnet across the first location and the second location (Stretched Subnet Mode (SSM)). By implementing LISP routers in this manner, system engineers can migrate network elements easily between two locations.
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