Uncommon Wisdom

Mar 30 2009   5:13PM GMT

IETF “LISP” initiative could offer users “global” addresses

Tom Nolle Tom Nolle Profile: Tom Nolle

The new IETF activity aimed at supporting enterprise multi-homing of their Internet connections may be taking a step in a much more valuable direction in the long run. The Locator/Identifier Separation Protocol or LISP is a means of breaking the current link between identifying a user and identifying the user’s location.

LISP effectively provides a kind of hierarchical routing where the primary encapsulation of a packet gets it to the correct network, and from that network it’s then routed to the correct user address on that network. A user, under LISP, would be known by a global “address” independent of the network address, and one that wouldn’t even change if the user changed ISPs.

We believe this could have a profound impact on the way the Internet works and could make IP a more suitable protocol for “infrastructure” services, as well as making its operation less costly. However, it’s clear that there is a lot of opposition to LISP, even in the IETF, and so it’s not at all clear how soon it might be deployed beyond experiments.

 Comment on this Post

There was an error processing your information. Please try again later.
Thanks. We'll let you know when a new response is added.
Send me notifications when other members comment.

Forgot Password

No problem! Submit your e-mail address below. We'll send you an e-mail containing your password.

Your password has been sent to:

Share this item with your network: