Network Working Group J. Kempf Request for Comments: 3154 C. Castelluccia Category: Informational P. Mutaf N. Nakajima Y. Ohba R. Ramjee Y. Saifullah B. Sarikaya X. Xu August 2001 Requirements and Functional Architecture for an IP Host Alerting Protocol Status of this Memo This memo provides information for the Internet community. It does not specify an Internet standard of any kind. Distribution of this memo is unlimited. Copyright Notice Copyright (C) The Internet Society (2001). All Rights Reserved. Abstract This document develops an architecture and a set of requirements needed to support alerting of hosts that are in dormant mode. The architecture and requirements are designed to guide development of an IP protocol for alerting dormant IP mobile hosts, commonly called paging. Kempf, et al. Informational