GRE Tunnel Bonding

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Document Type Expired Internet-Draft (individual)
Last updated 2016-04-12 (latest revision 2015-10-10)
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There is an emerging demand for solutions that provide redundancy and load-sharing across wired and cellular links from a single service provider, so that a single subscriber is provided with hybrid access to multiple heterogeneous connections at the same time. In this document, GRE (Generic Routing Encapsulation) Tunnel Bonding is specified as an enabling approach for Hybrid Access to a wired and a wireless network in customer premises, e.g. homes. In GRE Tunnel Bonding, two GRE tunnels, one per network connection, are set up and bonded together to form a single GRE tunnel for a subscriber. Compared with each composing connection, the bonding connection promises increased access capacity and improved reliability. The solution described in this document is currently implemented by Huawei and deployed by Deutsche Telekom AG.


Nicolai Leymann (
Cornelius Heidemann (
Mingui Zhang (
Behcet Sarikaya (
Margaret Cullen (

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