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T-Mobile PCRF > Messages > Flashcards

Messages Flashcards

1
Q

Name Gx messages used for PCRF

A

CCR/CCA

RAR/RAA

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2
Q

Name Rx messages used for PCRF

A

AAR/AAA
STR/STA
ASR/ASA
RAR/RAA

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3
Q

Name Sy messages used for PCRF

A

SLR/SLA
SNR/SNA
STR/STA

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4
Q

Name LDAP messages used for PCRF

A

Search Request

Search Response

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5
Q

Name PLF messages used for PCRF

A

LDAP Query Request

LDAP Query Response

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6
Q

What does the PLF do?

A

PLF Use Case:
LDAP client application which has the IP address of a user can get the subscriber IMSI details by sending a LDAP query to PLF .

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7
Q

Name NAP messages used for PCRF

A

NAP subscriber change notification API Request/NAP API Response

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8
Q

What interaction does NAP have with PCF/PCRF?

A

NAP Use Case:
When subscriber LDAP profile is changed mid-session, then LDAP server sends a request to NAP server which sends a subscriber change notification to PCRF via PLF.
PCF will be the server for PLF/NAP queries from PCRF. The Port number for this communication is 9884

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9
Q

Name N7 messages used for PCF

A

SmPolicyRequest
SmPolicyResponse
SmPolicyNotify Request
SmPolicyNotify Response

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10
Q

Name Rx messages used for PCF

A

AAR\AAA
STR\STA
ASR\ASA
RAR\RAA

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11
Q

Name N28 messages used for PCF

A 
SpendingLimitSubscribe Request
SpendingLimitStatus Response
SpendingLimitNotify Request
SpendingLimitNotify Response
SpendingLimitUnsubscribe Request
SpendingLimitUnsubscribe Response
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12
Q

Name NRF messages used between the PCF and the NRF

A 
nnrf-nfm Reg Request
nnrf-nfm Reg Response
nnrf-disc Request
nnrf-disc Response
nnrf-nfm subscribe Request
nnrf-nfm subscribe Response
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13
Q

Name GRPC messages sent from PCRF to PCF SVC

A

Query Subscriber Request

Query Subscriber Response

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14
Q

How do GRPC and PLF interact?

A

When a PLF query reaches PCRF and subscriber is not found in the mongoDB, then the request is sent to PCF seeing subscriber information

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15
Q

Name LDAP messages sent from PCRF to PCF SVC

A

LDAP Change Request

LDAP Change Response

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16
Q

How do NAP and PLF interact?

A

When LDAP profile is changed for a subscriber and NAP is triggered, if the subscriber is not found in PCRF then Change request is sent by PCRF to PCF.

T-Mobile PCRF (4 decks)

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