Cisco Gateway GPRS Support Node Qos Traffic Class Phb Table

1.3.6.1.4.1.9.9.241.1.3.1

This table represents the mapping between a given traffic class and the corresponding DS PHB group. The table has one entry for each possible traffic class type. The table will be empty if the cggsnQosMappingMethod is not set to 'umts'. ::= { cggsnQosUmtsQos 1 } SYNTAX CggsnQosTrafficClassPhbEntry MAX-ACCESS not-accessible STATUS current DESCRIPTION Entry which denotes mapping between a given traffic class and the corresponding DS PHB group and the number of PDP contexts associated with each traffic class. INDEX { cggsnQosUmtsTrafficClass } ::= { cggsnQosTrafficClassPhbTable 1 } CggsnQosTrafficClassPhbEntry ::= SEQUENCE { cggsnQosUmtsTrafficClass INTEGER, cggsnQosUmtsDiffServPhbgroup INTEGER, cggsnQosUmtsPdps Gauge32 } SYNTAX INTEGER { signalling(1), conversational(2), streaming(3), interactive(4), background(5) } MAX-ACCESS not-accessible STATUS current DESCRIPTION This object denotes the UMTS QoS traffic class. UMTS QoS uses this parameter to make assumptions about the traffic source, and determine the maximum bitrate, and guaranteed bitrate for the traffic class when performing admission control. The signalling traffic class only applies to the UMTS signalling messages. ::= { cggsnQosTrafficClassPhbEntry 1 } SYNTAX INTEGER { signallingClass(1), efClass(2), afClass1(3), afClass2(4), afClass3(5), afClass4(6), bestEffort(7) } MAX-ACCESS read-write STATUS current DESCRIPTION This object denotes the PHB which is mapped to the traffic class given by cggsnQosUmtsTrafficClass. DS architecture is based on number of functional elements, one of which is PHB. PHBs specify queuing, queue management and scheduling characteristics that allow a means of allocating buffer and bandwidth resources at each node among the competing traffic streams. The various DS PHBs include: signalling - signallingClass(1) The signalling class PHB is only used for the UMTS signalling messages. This DS PHB does not apply to any other IP data packets. expedited forwarding - efClass(2) The expedited forwarding PHB is used for providing a low loss, low latency, low jitter, assured bandwidth, end-to-end service through the DS domains. Such a service appears to the endpoints like a point-to-point connection, or a virtual leased line. assured forwarding - afClass(3-6) The assured forwarding PHB provides a means for a provider DS domain to offer different levels of delivery assurances for packets received from a customer DS domain. Four assured forwarding classes: afClass1, afClass2, afClass3 and afClass4 are defined, where each AF class is in each DS node allocated a certain amouont of forwarding resoources(buffer space and bandwidth). IP packets are assigned into one or more of these classes, according to the subscribed service. Within each class the packets are marked by a mobile subscriber, or by the provider DS domain, with one of the three possible drop precedence values. In case of congestion, the drop precedence of a packet determines the relative importance of a packet within the class. Packets in one class are forwarded independently of the packets in another class. best effort - bestEffort(7) This is the default PHB. The packets of this aggregate are forwarded on an output link whenever the link is not required to satisfy any other PHB. DEFVAL { bestEffort } ::= { cggsnQosTrafficClassPhbEntry 2 } SYNTAX Gauge32 MAX-ACCESS read-only STATUS current DESCRIPTION This object specifies the current number of PDP contexts associated with each traffic class identified by cggsnQosUmtsTrafficClass. ::= { cggsnQosTrafficClassPhbEntry 3 } SYNTAX SEQUENCE OF CggsnQosPhbToDscpMapEntry MAX-ACCESS not-accessible STATUS current DESCRIPTION This table represents the DiffServ Code Point (DSCP) mappings for different types of DiffServ PHB groups. The table has one entry for each possible DS PHB. ::= { cggsnQosUmtsQos 2 } SYNTAX CggsnQosPhbToDscpMapEntry MAX-ACCESS not-accessible STATUS current DESCRIPTION Entry which denotes mapping of different DS PHBs to the DSCP. INDEX { cggsnQosDiffServPhb } ::= { cggsnQosPhbToDscpMapTable 1 } CggsnQosPhbToDscpMapEntry ::= SEQUENCE { cggsnQosDiffServPhb INTEGER, cggsnQosDscp INTEGER } SYNTAX INTEGER { signallingClass(1), efClass(2), afClass1Low(3), afClass1Medium(4), afClass1High(5), afClass2Low(6), afClass2Medium(7), afClass2High(8), afClass3Low(9), afClass3Medium(10), afClass3High(11), afClass4Low(12), afClass4Medium(13), afClass4High(14), bestEffort(15) } MAX-ACCESS not-accessible STATUS current DESCRIPTION This object denotes the various possible values of PHB. It can take up one of the following values: signallingClass(1) - Signalling class efClass(2) - expedited forwarding class afClass1Low(3) - assured forwarding class 1 low drop precedence afClass1Medium(4) - assured forwarding class 1 medium drop precedence afClass1High(5) - assured forwarding class 1 high drop precedence afClass2Low(6) - assured forwarding class 2 low drop precedence afClass2Medium(7) - assured forwarding class 2 medium drop precedence afClass2High(8) - assured forwarding class 2 high drop precedence afClass3Low(9) - assured forwarding class 3 low drop precedence afClass3Medium(10) - assured forwarding class 3 medium drop precedence afClass3High(11) - assured forwarding class 3 high drop precedence afClass4Low(12) - assured forwarding class 4 low drop precedence afClass4Medium(13) - assured forwarding class 4 medium drop precedence afClass4High(14) - assured forwarding class 4 high drop precedence bestEffort(15) - best effort class ::= { cggsnQosPhbToDscpMapEntry 1 } SYNTAX INTEGER (0 .. 63) MAX-ACCESS read-write STATUS current DESCRIPTION This object denotes the DSCP for the corresponding PHB defined by cggsnQosDiffServPhb. The values recommended for the various values of cggsnQosDiffServPhb are: signallingClass - '101000' efClass - '101110' afClass1Low - '001010' afClass1Medium - '001100' afClass1High - '001110' afClass2Low - '010010' afClass2Medium - '010100' afClass2High - '010110' afClass3Low - '011010' afClass3Medium - '011100' afClass3High - '011110' afClass4Low - '100010' afClass4Medium - '100100' afClass4High - '100110' bestEffort - '000000' ::= { cggsnQosPhbToDscpMapEntry 2 } SYNTAX INTEGER { up(1), down(2), all(3), none(4) } MAX-ACCESS read-write STATUS current DESCRIPTION This object defines if the DSCP in the subscriber datagram will be forwarded in the uplink/downlink path with or without modification. The various values that this object can take up are: up(1) - DSCP will not be modified in the uplink path alone down(2) - DSCP will not be modified in downlink path alone all(3) - DSCP will not be modified in both uplink/downlink path none(4) - DSCP will be modified both in uplink and in downlink path DEFVAL { none } ::= { cggsnQosUmtsQos 3 } cggsnQosUmtsCac OBJECT IDENTIFIER ::= { cggsnQosUmtsQos 4 } SYNTAX UmtsQosTrafficClass MAX-ACCESS read-write STATUS deprecated DESCRIPTION This object is to map the IP Multimedia Subsystem (IMS) signaling traffic to one of UMTS traffic class. Only 'interactive' or 'background' traffic class can be set to this object. If the traffic class is set to 'interactive', then the priority has to be set in cggsnUmtsQosMapImsSigTrafHandPri. This object is deprecated as the IMS is not supported from GGSN release 5.0 onwards.