Cisco Cisco Packet Data Gateway (PDG) トラブルシューティングガイド
Gx Interface Support
▀ Rel. 7 Gx Interface
▄ Cisco ASR 5000 Series Enhanced Feature Configuration Guide
OL-22983-01
The PCEF selects a PCC rule for each packet received by evaluating received packets against SDF filters of PCC rules
in the order of precedence of the PCC rules. When a packet matches a SDF filter, the packet matching process for that
packet is completed, and the PCC rule for that filter is applied.
in the order of precedence of the PCC rules. When a packet matches a SDF filter, the packet matching process for that
packet is completed, and the PCC rule for that filter is applied.
There are two types of PCC rules:
Dynamic PCC Rules: Rules dynamically provisioned by the PCRF to the PCEF via the Gx interface. These PCC
rules may be either predefined or dynamically generated in the PCRF. Dynamic PCC rules can be activated,
modified, and deactivated at any time.
modified, and deactivated at any time.
Predefined PCC Rule: Rules preconfigured in the PCEF by the operators. Predefined PCC rules can be activated
or deactivated by the PCRF at any time. Predefined PCC rules within the PCEF may be grouped allowing the
PCRF to dynamically activate a set of PCC rules over the Gx reference point.
PCRF to dynamically activate a set of PCC rules over the Gx reference point.
Important:
A third kind of rule, the static PCC rule can be preconfigured in the chassis by the operators. Static
PCC rules are not explicitly known in the PCRF, and are not under control of the PCRF. Static PCC rules are bound to
general purpose bearer with no Gx control.
general purpose bearer with no Gx control.
A PCC rule consists of:
Rule Name: The rule name is used to reference a PCC rule in the communication between the PCEF and PCRF.
Service Identifier: The service identifier is used to identify the service or the service component the SDF relates
to.
Service Data Flow Filter(s): The service flow filter(s) is used to select the traffic for which the rule applies.
Precedence: For different PCC rules with overlapping SDF filter, the precedence of the rule determines which of
these rules is applicable. When a dynamic PCC rule and a predefined PCC rule have the same priority, the
dynamic PCC rule takes precedence.
dynamic PCC rule takes precedence.
Gate Status: The gate status indicates whether the SDF, detected by the SDF filter(s), may pass (gate is open) or
will be discarded (gate is closed) in uplink and/or in downlink direction.
QoS Parameters: The QoS information includes the QoS class identifier (authorized QoS class for the SDF), the
Allocation and Retention Priority (ARP), and authorized bitrates for uplink and downlink.
Charging Key (i.e. rating group)
Other charging parameters: The charging parameters define whether online and offline charging interfaces are
used, what is to be metered in offline charging, on what level the PCEF will report the usage related to the rule,
etc.
etc.
Important:
In this release, configuring the Metering Method and Reporting Level for dynamic PCC rules is not
supported.
PCC rules also include Application Function (AF) record information for enabling charging correlation between the
application and bearer layer if the AF has provided this information via the Rx interface. For IMS, this includes the IMS
Charging Identifier (ICID) and flow identifiers.
application and bearer layer if the AF has provided this information via the Rx interface. For IMS, this includes the IMS
Charging Identifier (ICID) and flow identifiers.