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Layer 2 Relay Agents in Cellular Fronthaul Networks

Document Type Expired Internet-Draft (individual)
Expired & archived
Authors Claudio Porfiri , Jari Arkko
Last updated 2024-04-25 (Latest revision 2023-10-23)
RFC stream (None)
Intended RFC status (None)
Stream Stream state (No stream defined)
Consensus boilerplate Unknown
RFC Editor Note (None)
IESG IESG state Expired
Telechat date (None)
Responsible AD (None)
Send notices to (None)

This Internet-Draft is no longer active. A copy of the expired Internet-Draft is available in these formats:


The fronthaul portion of a cellular network is the part of the network that connects centralized radio controllers and the distributed radio units at the edge of the cellular network. A switched fronthaul network is one where the connectivity is provided through one or more stages of switches. When performing address assignment and configuration tasks in such networks, knowledge of how the different devices are connected is beneficial. Networks that employ IPv6 can use DHCPv6 to support Relay Agents. However, those networks that continue to be based on IPv4 have no easy way to support this, as the DHCPv4 support for relays is limited. This document explores how to provide Relay Agent functionality in IPv4-based switched fronthaul networks.


Claudio Porfiri
Jari Arkko

(Note: The e-mail addresses provided for the authors of this Internet-Draft may no longer be valid.)