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Signalling aspects 3

The functions and signalling requirements of BNG related to service/user detection/control may include:

1) User access and information reporting:
a) user access function: BNG should support access of broadband users with point to point
protocol over Ethernet (PPPoE), IP over Ethernet (IPoE), layer 2 tunnelling protocol (L2TP),
L2VPN/layer 3 VPN (L3VPN), etc.;
b) user information reporting to the service platform: BNG should support reporting of the
information of user identification to the service platform. The service platform can save the
user identification, which will be useful when performing service/user policy control.
2) Reporting of traffic statistics and BNG capability: BNG can calculate the statistics of different
user/service traffic and report the information to the service platform. BNG should also report its
capability, resources, and status to the service platform.
3) Policy control related communication interface:
a) open communication interface: BNG should support multiple protocols to distribute control
policy from the service platform, e.g., remote authentication dial in user service (RADIUS)
change of authorization (COA), Diameter, simple network management protocol (SNMP),
OpenFlow;
b) supporting policy control protocol: BNG can interpret different policy control protocols and
translate to control policies, which will be used for user/service control.

Figure D.1 shows the user/service control procedure. The BNG will report its traffic statistics, capability and
status periodically to the service platform. After the user finishes the dial-up process between user and BNG,
BNG will report the user identification information to the service platform. Then the service platform will
distribute the initial control policy for that user to the BNG. The BNG will allocate the appropriate resources
for the user and perform control. If the user demands to change its user/service policy (e.g., increasing
priority to get QoS guarantee with more payment), it can send a request through some application (e.g., the
portal provided by operator). The application can forward the request to the service platform. Then the
service platform will update the control policy for that user/service and distribute the new policy to the BNG.
Then the BNG will re-allocate the necessary resources and perform corresponding control.

Service
User BNG platform Application

Traffic/capability/
status report
User dial-up
User information report
Distribute initial policy

Request to change service/user priority
Request to change
control policy

Change control policy
Q.3315(15)_FD.1

Figure D.1 – Service/user control procedure

Functions and signalling requirements related to service/user detection/control can be studied from the
following perspectives, including:

1) user access and information reporting;
2) reporting of traffic statistics and BNG capability;
3) policy control related communication interface, etc.

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