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Liaison statement
LS to IETF Operations and Management Area WG (OPSAWG) regarding use of MUD to indicate network usage requirements in cellular networks.

Additional information about IETF liaison relationships is available on the IETF webpage and the Internet Architecture Board liaison webpage.
State Posted
Submitted Date 2018-05-03
From Group GSMA
From Contact Paul Gosden
To Group opsawg
To Contacts Joe Clarke <>
Tianran Zhou <>
Cc Joe Clarke <>
Ignas Bagdonas <>
Operations and Management Area Working Group Discussion List <>
Tianran Zhou <>
Warren Kumari <>
Purpose For action
Deadline 2018-06-07 Action Needed
Attachments TSGIoT07_004 LStoIETF_OPSAWG
1       Summary
GSMA TSGIoT is studying options for keeping track of how IoT devices and IoT
applications make use of the cellular network, so that network operators may
both adapt resource allocation based on the device’s anticipated needs, as well
as detect anomalous behavior that deviates from those needs, and take
appropriate action to protect the network and customer.

An overview of IETF MUD was submitted for consideration in this context and
there was interest both in studying MUD’s usage in a cellular network over
TCP/IP after the data connection is established, as it is defined today in its
current draft, and also exploring together with IETF OSAWG the possibility of
leveraging MUD during the initial provisioning of an IoT device onto the 3GPP
network, well before it ever attempts to establish an IP data connection.

This study item could possibly lead to extensions such as an alternative
delivery of the MUD URI to the network, alternate retrieval of the MUD file,
and possibly extensions to YANG-NETCONF to express cellular-specific resource
requests, and we would like to engage with IETF OPSAWG to explore the

2       Request for Action
GSMA TSGIoT kindly requests a reply from IETF OPSAWG indicating your interest
in discussing this further in a joint conference call. If you can indicate who
would be interested in having a call we will set up a Doodle poll to find a
suitable date and time.

3       Contact
In the case of any questions and/or feedback these can be directed to Paul
Gosden Terminals Director, looking after TSG and TSGIoT groups

4       Next Meetings
GSMA TSGIoT#08 Meeting  7th June 2018                   Conference Call