OMA-TP-2011-0048R01-INP_GWMO_v1.0_Presentation GwMO v1.0: Presentation for Information

© 2011 Open Mobile Alliance Ltd. All Rights Reserved.Used with the permission of the Open Mobile Alliance Ltd. under the terms as stated in this document. OMA-TP-2011-0048 Slide #1

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Submitted To: TPDate: 10 Feb 2011

Availability: Public OMA ConfidentialContact: Bipin Patel & GwMO Champions

[email protected]: DM Working Group

OMA-TP-2011-0048R01-INP_GWMO_v1.0_Presentation

GwMO v1.0: Presentation for Information

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Many devices in home environmentEntertainment ★• Video • IPTV• Streaming music• Off-line storage

Security ★• Intrusion detection• In-home monitoring• Parents controls• Remote video

surveillance

Communication ★

• Wireless telephony• Instant message• Voice/video

conferencing• Electronic messaging

Others ★• Health devices• Home automation• Shared Internet

access• Appliances control

• Remote Management• Device

configuration• Service

Configuration• Usage Monitoring



GwMO Overview

• Facilitates interaction between a management server and a management client in situations where direct and unaided interaction between the management server and the management client is not possible

1. Device does not have a publicly routable address2. Device sitting behind a firewall3. Device supports a management protocol other than OMA-DM

• Enables a single OMA-DM message, issued by a DM Server, to be fanned out to multiple end devices, and an aggregated response to be sent back to the DM Server



Modes of Operation• GW MO Enabler provides framework for OMA DM to

manage devices indirectly• Compatible DM v1.3 and later versions• Three different supported modes

1. Transparent2. Proxy3. Adaptation

The DM Gateway can operate in different modes for different devices simultaneously.



Transparent Mode• Transparent Mode The DM Gateway assists the DM Server in sending a DM Notification to

the End Device(s) behind the DM Gateway The DM Gateway forwards the DM Notification to the End Device(s)

The DM Gateway does not participate in the management session that gets established between the DM Server and the End Device(s), after the delivery of the DM Notification to the End Device(s)



• Proxy Mode

The DM Gateway manages End Device(s) behind the DM Gateway on behalf of the DM Server over DM protocol. Scenarios: Management of End Device(s) behind Firewall Management of End Device(s) which may not have capabilities to access Internet

Multiple DM sessions are established; One is between DM Server and DM Gateway; Other DM sessions are between DM Gateway and each End Device

Supports command fanout and response aggregation Useful for M2M scenarios

Proxy Mode

GwMO



• Adaptation Mode

Similar to the Proxy Mode with the difference that the DM Gateway manages End Device(s) behind the DM Gateway on behalf of the DM Server over non-OMA-DM protocols (such as UPnP DM, TR069, etc.)

Adaptation Mode

GwMO



GwMO Architecture: Transparent Mode

GwMO-1 interface: Allows a GwMO Server to invoke GwMO Operations on the End Device via the DM Gateway using the underlying DM-1 interface

GwMO-2 interface: Allows the End Device to send GwMO Alerts to the GwMO Server via the DM Gateway using the underlying DM-1 interface

GwMO-3 interface: Allows the GwMO component to send notifications to End DeviceGwMO-4 interface: Allows the DM Client to register its End Device to the DM Gateway. DM-1 interface: Defined in the OMA DM Enabler. It provides a formal interface over which Servers may

send device management commands to Clients and Clients may return status and alerts to Servers



GwMO Architecture: Proxy Mode



GwMO-3 interface: Allows the GwMO component to send notifications to End DeviceGwMO-4 interface: Allows the DM Client to register its End Device to the DM Gateway. DM-1 interface: Defined in the OMA DM Enabler. It provides a formal interface over which Servers may

send device management commands to Clients and Clients may return status and alerts to Servers



GwMO Architecture: Adaptation Mode



DM-1 interface: Defined in the OMA DM Enabler. It provides a formal interface over which Servers may send device management commands to Clients and Clients may return status and alerts to Servers

NDM-1 interface: Provides an interface over which Servers may send device management commands to Clients and Clients may return status and alerts to Servers using non-OMA DM protocol. This interface is outside the scope of OMA DM.



Sharing DM Account by Group of Devices

Possible Additional Functionality (to be finalized):• DM Account can be assigned to each device• DM Account can also be shared for management of

group of devices



GwMO: Management Objects• Device Inventory MO Maintains a list of Devices in the network that are managed

through the DM Gateway Device ID Dev Info Address Mode

MO is populated as and when the DM Gateway becomes aware of new Devices in the network

• Gateway Config MO Maintains information regarding the handling of different types of

Devices by the Gateway Bootstrapping information Device grouping based on various criteria. The group can be

addressed for notification or command fanouts Controlling the issuance of the Inventory Alert notification

Additional MOs may be identified as work on the GwMO Enabler proceeds.



GwMO: Management Objects• Fanout MO Maintains information regarding the handling of DM Commands fanout

and response aggregation Issue the DM Commands to a single targeted End Device (specified by

the Device ID in Device Inventory MO) OR issue the DM Commands to a group ID (specified in the Gateway Config MO)

Supported for Proxy Mode (and not Transparent Mode)• Image Inventory MO Allows caching of data in the DM Gateway to optimize delivery of data

to End Device(s)




GwMO: Management Objects• Alerts to DM Server Device Inventory Update Alert

Issued by DM Gateway to DM Server to notify when there are Devices attached or detached

Device Attach Alert Issued by the DM Gateway to DM Server when the DM Gateway detects a

new device Device Detach Alert

Issued by the DM Gateway to the DM Server when the device is detached from the DM Gateway




Work Status

• RD and AD in Candidate status• Very good progress achieved on the TS• GwMO TS to reach Candidate status during 2011



References

• Requirements Document: OMA-RD-GwMO-V1_0-20100831-C• Architecture Document: OMA-AD-GwMO-V1_0-20101223-D• Technical Specification Document:

OMA-TS-GwMO-V1_0-20110113-D• Enabler Release Definition Document:

OMA-ERELD-GwMO-V1_0-20101102-C

http://member.openmobilealliance.org/ftp/Public_documents/DM/DM-GwMO/Permanent_documents/OMA-RD-GwMO-V1_0-20100831-C.zip

http://member.openmobilealliance.org/ftp/Public_documents/DM/DM-GwMO/Permanent_documents/OMA-AD-GwMO-V1_0-20101102-C.zip

http://member.openmobilealliance.org/ftp/Public_documents/DM/DM-GwMO/Permanent_documents/OMA-TS-GwMO-V1_0-20101123-D.zip

http://member.openmobilealliance.org/ftp/Public_documents/DM/DM-GwMO/Permanent_documents/OMA-ERELD-GwMO-V1_0-20101102-C.zip



Thank You

OMA-TP-2011-0048R01-INP_GWMO_v1.0_Presentation GwMO v1.0: Presentation for Information

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