Location/Identifier Separation Protocol

What Does Location/Identifier Separation Protocol Mean?

Location/Identifier Separation Protocol (LISP) is a proposed standard for separating current IP address into two separate name spaces to show an IP location and I.D. separately. This standard is in development as a product of the Internet Engineering Task Force, a volunteer group that promotes IT standards and works with other major groups like the W3C and ISO to develop consistent protocols for the Web.


Techopedia Explains Location/Identifier Separation Protocol

Although certain use cases have been developed for LISP, it is not automatically supported by current IP address standards. As of 2013, the IPv4 standard and updated IPv6 standard still use the address as a single name space. However, with a number of groups and various countries working together on LISP development, and with large companies like Cisco also participating, LISP has the potential to become a common standard. For example, Cisco has already created a LISP mobile IP node client and has further plans to develop LISP-compatible technologies.

While some are enthusiastic about LISP, others have suggested that there may be issues with security and the deployment of LISP protocols. The question of how to consistently upgrade Web systems has also been raised.


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Margaret Rouse is an award-winning technical writer and teacher known for her ability to explain complex technical subjects to a non-technical, business audience. Over the past twenty years her explanations have appeared on TechTarget websites and she's been cited as an authority in articles by the New York Times, Time Magazine, USA Today, ZDNet, PC Magazine and Discovery Magazine.Margaret's idea of a fun day is helping IT and business professionals learn to speak each other’s highly specialized languages. If you have a suggestion for a new definition or how to improve a technical explanation, please email Margaret or contact her…