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Bluetooth SIG Proprietary
Mesh Profile
Bluetooth
®
Specification
▪ Revision: v1.0
▪ Revision Date: 2017-Jul-13
▪ Group Prepared By: Mesh Working Group
▪ Feedback Email: mesh-main@bluetooth.org
Abstract:
This Bluetooth specification defines fundamental requirements to enable an interoperable mesh networking
solution for Bluetooth low energy wireless technology.

Mesh Profile / Specification
Bluetooth SIG Proprietary Page 2 of 331
Revision History
Revision Number
Date
Comments
v1.0
2017-07-13
Adopted by the Bluetooth SIG Board of Directors

Mesh Profile / Specification
Bluetooth SIG Proprietary Page 3 of 331
Contributors
Name
Company
Robin Heydon
Qualcomm Technologies International, Ltd.
Jonathan Tanner
Qualcomm Technologies International, Ltd.
Victor Zhodzishsky
Broadcom Corporation
Wei Shen
Ericsson AB
Christoffer Jerkeby
Ericsson AB
Bogdan Alexandru
NXP Semiconductors
Martin Turon
Google Inc.
Robert D. Hughes
Intel Corporation
Marcel Holtmann
Intel Corporation
Brian Gix
Intel Corporation
Simon Slupik
Silvair, Inc.
Piotr Winiarczyk
Silvair, Inc.
Danilo Blasi
STMicroelectronics
Yao Wang
IVT Wireless Limited
Rustam Kovyazin
Motorola Solutions
Uday Agarwal
Cypress Semiconductor Corporation
Vasilii Aleksandrov
Motorola Solutions
LC Ko
MediaTek, Inc.
Omkar Kulkarni
Cypress Semiconductor Corporation

Mesh Profile / Specification
Bluetooth SIG Proprietary Page 4 of 331
Use of this specification is your acknowledgement that you agree to and will comply with the following notices and
disclaimers. You are advised to seek appropriate legal, engineering, and other professional advice regarding the use,
interpretation, and effect of this specification.
Use of Bluetooth specifications by members of Bluetooth SIG is governed by the membership and other related
agreements between Bluetooth SIG and its members, including those agreements posted on Bluetooth SIG’s website
located at www.bluetooth.com. Any use of this specification by a member that is not in compliance with the applicable
membership and other related agreements is prohibited and, among other things, may result in (i) termination of the
applicable agreements and (ii) liability for infringement of the intellectual property rights of Bluetooth SIG and its
members.
Use of this specification by anyone who is not a member of Bluetooth SIG is prohibited and is an infringement of the
intellectual property rights of Bluetooth SIG and its members. The furnishing of this specification does not grant any
license to any intellectual property of Bluetooth SIG or its members. THIS SPECIFICATION IS PROVIDED “AS IS” AND
BLUETOOTH SIG, ITS MEMBERS AND THEIR AFFILIATES MAKE NO REPRESENTATIONS OR WARRANTIES AND
DISCLAIM ALL WARRANTIES, EXPRESS OR IMPLIED, INCLUDING ANY WARRANTIES OF MERCHANTABILITY, TITLE,
NON-INFRINGEMENT, FITNESS FOR ANY PARTICULAR PURPOSE, OR THAT THE CONTENT OF THIS SPECIFICATION IS
FREE OF ERRORS. For the avoidance of doubt, Bluetooth SIG has not made any search or investigation as to third parties
that may claim rights in or to any specifications or any intellectual property that may be required to implement any
specifications and it disclaims any obligation or duty to do so.
TO THE MAXIMUM EXTENT PERMITTED BY APPLICABLE LAW, BLUETOOTH SIG, ITS MEMBERS AND THEIR AFFILIATES
DISCLAIM ALL LIABILITY ARISING OUT OF OR RELATING TO USE OF THIS SPECIFICATION AND ANY INFORMATION
CONTAINED IN THIS SPECIFICATION, INCLUDING LOST REVENUE, PROFITS, DATA OR PROGRAMS, OR BUSINESS
INTERRUPTION, OR FOR SPECIAL, INDIRECT, CONSEQUENTIAL, INCIDENTAL OR PUNITIVE DAMAGES, HOWEVER
CAUSED AND REGARDLESS OF THE THEORY OF LIABILITY, AND EVEN IF BLUETOOTH SIG, ITS MEMBERS OR THEIR
AFFILIATES HAVE BEEN ADVISED OF THE POSSIBILITY OF THE DAMAGES.
If this specification is a prototyping specification, it is solely for the purpose of developing and using prototypes to verify
the prototyping specifications at Bluetooth SIG sponsored IOP events. Prototyping Specifications cannot be used to
develop products for sale or distribution and prototypes cannot be qualified for distribution.
Products equipped with Bluetooth wireless technology ("Bluetooth Products") and their combination, operation, use,
implementation, and distribution may be subject to regulatory controls under the laws and regulations of numerous
countries that regulate products that use wireless non-licensed spectrum. Examples include airline regulations,
telecommunications regulations, technology transfer controls and health and safety regulations. You are solely
responsible for complying with all applicable laws and regulations and for obtaining any and all required authorizations,
permits, or licenses in connection with your use of this specification and development, manufacture, and distribution of
Bluetooth Products. Nothing in this specification provides any information or assistance in connection with complying
with applicable laws or regulations or obtaining required authorizations, permits, or licenses.
Bluetooth SIG is not required to adopt any specification or portion thereof. If this specification is not the final version
adopted by Bluetooth SIG’s Board of Directors, it may not be adopted. Any specification adopted by Bluetooth SIG’s
Board of Directors may be withdrawn, replaced, or modified at any time. Bluetooth SIG reserves the right to change or
alter final specifications in accordance with its membership and operating agreements.
Copyright © 2015–2017. All copyrights in the Bluetooth Specifications themselves are owned by Apple Inc., Ericsson AB,
Intel Corporation, Lenovo (Singapore) Pte. Ltd., Microsoft Corporation, Nokia Corporation, and Toshiba Corporation. The
Bluetooth word mark and logos are owned by Bluetooth SIG, Inc. Other third-party brands and names are the property of
their respective owners.

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Bluetooth SIG Proprietary Page 5 of 331
Contents
1 Introduction ...................................................................................................................................... 12
1.1 Conformance .............................................................................................................................. 12
1.2 Bluetooth specification release compatibility .............................................................................. 12
1.3 Language .................................................................................................................................... 12
1.3.1 Language conventions ........................................................................................................... 12
1.3.2 Acronyms and abbreviations ................................................................................................. 13
1.3.3 Terminology ........................................................................................................................... 15
2 Mesh system architecture ............................................................................................................... 16
2.1 Layered architecture ................................................................................................................... 16
2.1.1 Model layer ............................................................................................................................ 16
2.1.2 Foundation Model layer ......................................................................................................... 16
2.1.3 Access layer .......................................................................................................................... 17
2.1.4 Upper transport layer ............................................................................................................. 17
2.1.5 Lower transport layer ............................................................................................................. 17
2.1.6 Network layer ......................................................................................................................... 17
2.1.7 Bearer layer ........................................................................................................................... 17
2.2 Overview of mesh operation ....................................................................................................... 17
2.2.1 Network and subnets ............................................................................................................. 18
2.2.2 Devices and nodes ................................................................................................................ 19
2.2.3 Adding devices to a mesh network ........................................................................................ 19
2.2.4 Communications support ....................................................................................................... 20
2.2.5 Low power support ................................................................................................................ 20
2.3 Architectural concepts ................................................................................................................ 20
2.3.1 States .................................................................................................................................... 20
2.3.2 Bound states .......................................................................................................................... 20
2.3.3 Messages .............................................................................................................................. 20
2.3.4 Elements ................................................................................................................................ 21
2.3.5 Addresses .............................................................................................................................. 22
2.3.6 Models ................................................................................................................................... 23
2.3.7 Example device ..................................................................................................................... 29
2.3.8 Publish-subscribe and message exchange ........................................................................... 30
2.3.9 Security .................................................................................................................................. 31
2.3.10 Friendship .............................................................................................................................. 33
2.3.11 Features ................................................................................................................................ 34
2.3.12 Topology ................................................................................................................................ 35
2.4 Mesh gateway............................................................................................................................. 35
2.5 Concurrency limitations and restrictions ..................................................................................... 35
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