ASR5x00: Ratinggroep = "0" reflecterend in GGSN-CDR’s

Inleiding

In dit document worden de heffingsscenario's met betrekking tot Rating Group (RG) 0 over Gateway GPRS Support Node (GGSN) beschreven.

Beschrijving van probleem

Ratinggroep = "0" reflecterend in GGSN Call Data Records (CDR's). Ook het volume dat rapporteert in GGSN over Rating group = "0" rapporteert niet aan Online Charging Server (OCS).

CDR ELEMENTS FOLLOW
recordType EGSNPDPRECORD
servedIMSI 11122233334444
ggsnAddress 192.224.40.131
chargingID 464620230
sgsnAddress 192.224.40.136
accessPointNameNI xxxxx.com
pdpType IPV4
servedPDPAddress 192.72.21.107
dynamicAddressFlag TRUE
recordOpeningTime 160905195241+0530
duration 109
causeForRecClosing Normal Release
recordSequenceNumber 1
nodeID DELGW02
localSequenceNumber 384391885
apnSelectionMode MS or Network Provided and Subscription Verified
servedMSISDN 918009435175
chargingCharacteristics Prepaid
chargingCharSelMode SGSN Supplied
sgsnPLMNIdentifier 405, 54
imei-sv 3008280525536203
RATType GERAN
MSTimeZone +05:30
userLocationInformation 405-54-3105-8122
ratingGroup 0 <<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<

Problemen oplossen

Volgens het Postpaid omrichtingsplan bellen ze met RG 431 ruledef, dat niet is ingesteld met een content-id. Om die reden krijgen alle postpaid omleidingsgebruikers een nulrating-groep in Call Data Record (CDR).

Volgens de meervoudige casetest wordt het uitsluitend geïdentificeerd met bepaalde gebruikerstoestellen (UE’s).

1. De vooraf betaalde nummers lijken een probleem te hebben. De nummers die behoren tot één omleidingsplan.
2. Als de gebruiker probeert een pagina te bereiken, wordt de pagina opnieuw gericht aan de klant op basis van een gebruikersagent. Aan het GN-eind is er een kostenaanrekening voor deze omleiding en wordt deze niet gekoppeld aan een ratinggroep. In dit geval bevat het gebruikersgebruik ook "0" ratings.

Dit is de ontbrekende configuratie:

charging-action 431_url_redirect
flow idle-timeout 300
no video cae-readdressing
flow idle-timeout flow-mapping 300
>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>content-id 431 its missing which is trigger for the RG 0 in CDR. add this one
no service-identifier
retransmissions-counted
xheader-insert xheader-format msisdn_rat 
billing-action egcdr
no cca charging
content-filtering processing server-group
no qos-class-identifier
no ip tos
no ip tos
no qos-renegotiate traffic-class
flow action redirect-url http://one.airtel.in/net
no flow limit-for-flow-type
no flow limit-for-bandwidth direction downlink
no flow limit-for-bandwidth direction uplink
charge-volume ip bytes 
no nexthop-forwarding-address
no ip vlan
tft-notify-ue
no service-detection session-update


rulebase REDIRECT_PLAN
description ""
#exit
timestamp rounding edr round-off
no ran bandwidth optimize
dynamic-rule order always-first
ip reassembly-timeout 5000
no active-charging rf rating-group-override
no active-charging rf service-id-override
icmp req-threshold 20
no ip reset-tos
no tethering-detection
tcp packets-out-of-order timeout 30000
retransmissions-counted
tcp 2msl-timeout 2
tcp packets-out-of-order transmit immediately
no tcp mss
no tcp proxy-mode
http header-parse-limit 12000
rtsp initial-bytes-limit 6000
no video optimization-preprocessing
wtp packets-out-of-order transmit immediately
wtp out-of-order-timeout 5000
tcp check-window-size
post-processing policy not-for-dynamic-discard
no xheader-encryption certificate-name
no xheader-encryption re-encryption
timestamp rounding egcdr round-off
flow end-condition timeout normal-end-signaling session-end charging-edr edr-flow-format
billing-records egcdr
action priority 3 ruledef 426_1_redirect charging-action 426_charged_with_Gy monitoring-key 2
action priority 4 ruledef 403_1_redirect charging-action 410_charged_with_Gy monitoring-key 2
action priority 5 ruledef 410_1_redirect charging-action 431_charged_with_Gy monitoring-key 2
action priority 7 ruledef 431_1 charging-action 431_charged_with_Gy
action priority 15 ruledef httpua charging-action 431_url_redirect

hieronder volgen CDR-elementen:

recordType EGSNPDPRECORD
servedIMSI 405540128802801
ggsnAddress 192.224.40.131
chargingID 157136633
sgsnAddress 192.224.40.136
accessPointNameNI xxxxxgprs.com
pdpType IPV4
servedPDPAddress 10.66.181.167
dynamicAddressFlag TRUE
recordOpeningTime 160906192638+0530
duration 130
causeForRecClosing Management Intervention
recordSequenceNumber 1
nodeID DELGW02
localSequenceNumber 524874817
apnSelectionMode MS or Network Provided and Subscription Verified
servedMSISDN 918933043178
chargingCharacteristics Prepaid
chargingCharSelMode SGSN Supplied
sgsnPLMNIdentifier 405, 54
imei-sv 3562370491918918
RATType GERAN
MSTimeZone +05:30
userLocationInformation 422-54-15-25111

ratingGroup 0
localSequenceNumber 87586425
timeOfFirstUsage 160906192838+0530
timeOfLastUsage 160906192838+0530
timeUsage 0
serviceConditionChange PDP context release
qoSInformationNeg 01 0b 61 1f 73 96 68 68 74 05 ff ff 00 
sgsn-Address 192.224.20.136
sGSNPLMNIdentifier 405, 54
datavolumeFBCUplink 327
datavolumeFBCDownlink 112
timeOfReport 160906192848+0530
rATType GERAN

CDR ELEMENTS FOLLOW
recordType EGSNPDPRECORD
servedIMSI 405540128802801
ggsnAddress 192.234.40.131
chargingID 157136633
sgsnAddress 223.224.40.136
accessPointNameNI xxxxgprs.com
pdpType IPV4
servedPDPAddress 192.66.181.167
dynamicAddressFlag TRUE
recordOpeningTime 160906192848+0530
duration 0
causeForRecClosing Management Intervention
recordSequenceNumber 2
nodeID DELGW02
localSequenceNumber 524874818
apnSelectionMode MS or Network Provided and Subscription Verified
servedMSISDN 918933043178
chargingCharacteristics Prepaid
chargingCharSelMode SGSN Supplied
sgsnPLMNIdentifier 405, 54
imei-sv 3562370491918918
RATType GERAN
MSTimeZone +05:30
userLocationInformation 405-54-15-25111

ratingGroup 800
resultCode 2001
localSequenceNumber 87586426
timeOfFirstUsage 160906192711+0530
timeOfLastUsage 160906192724+0530
timeUsage 13
serviceConditionChange PDP context release
qoSInformationNeg 01 0b 61 1f 73 96 68 68 74 05 ff ff 00 
sgsn-Address 192.124.40.136
sGSNPLMNIdentifier 405, 54
datavolumeFBCUplink 124
datavolumeFBCDownlink 0
timeOfReport 160906192848+0530
rATType GERAN


HEXDUMP-START
00 00 00 01 ....
[V] [M] Charging-Rule-Install 
Code: 0x000003e9 (1001) Charging-Rule-Install
Flags: 0xc0 (192) [V] [M] 
Length: 0x00003c (60)
Vendor-Id: 0x000028af (10415) 3GPP
[V] [M] Charging-Rule-Base-Name 
Code: 0x000003ec (1004) Charging-Rule-Base-Name
Flags: 0xc0 (192) [V] [M] 
Length: 0x000020 (32)
Vendor-Id: 0x000028af (10415) 3GPP
Data: REDIRECT_PLAN

Conclusie

Als in een oplaadings-actie factureringsmechanisme wordt ingesteld maar content-id niet is, wordt het gegevensverkeer afrekend op deze oplaadactie en wordt gerapporteerd in CDR's met Rating Group "0".