ACS Change CDR Node Fails to Handle Negative Diameter Exponent Values
Last updated on FEBRUARY 27, 2017
Applies to:Oracle Communications Network Charging and Control - Version 6.0.0 to 6.0.0 [Release 6.0]
Oracle Communications Convergent Charging Controller - Version 6.0.0 to 6.0.0 [Release 6.0]
Information in this document applies to any platform.
On all versions of Oracle Communications Network Charging and Control (OCNCC or NCC) and Oracle Communications Convergent Charging Controller (OC3C), the value retrieved from a Profile Tag for a stored Attribute Value Pair (AVP) is wrong. The value retrieved is "AVP-Exponent=4294967295" while the the expected value is "AVP-Exponent=-1".
The AVP value is received by Diameter Charging Driver (DCD) application from an external Billing Engine (BE) and is stored in a Profile Tag (AVP-Exponent in this case) for future use.
DCD allows the Service Logic Controllers (SLCs) to interact with a BE over the Diameter protocol.
AVP definitions are configured in /IN/service_packages/eserv.config file, in the AVPs section.
In this case, the custom AVP is defined like this:
name = "Exponent-Cost-Info"
avpCode = 429
type = "Integer32"
ccsConcept = "acsProfile"
profileBlock = 17 # The 'temporary storage' profile.
profileTag = 106 # AVP-Exponent
profileFormat = "INTEGER"
This value is set to -1 from the BE and passed to DCD and then to slee_acs. On slee_acs, this value is stored in Profile Tag as 0xFF FF FF FF (which is -1 for a signed integer but 4294967295 for an unsigned integer):
2016/10/28 15:10:19 acsProfileConcept.cc 272  avpConfig Updating profile in ACS slee call context:
2016/10/28 15:10:19 acsProfileConcept.cc 278  avpConfig 00000000: FF FF FF FF :
The problem is when the value is retrieved from Profile Tag: the value is 4294967295, instead of -1:
2016/10/28 15:10:19 changeCDRNode.cc 311  acsMacroNodes Retrieved Length: 4
2016/10/28 15:10:19 changeCDRNode.cc 422  acsMacroNodes Retrieved CDR Tag value: 4294967295
2016/10/28 15:10:19 changeCDRNode.cc 443  acsMacroNodes CDR Tag Value to update is: 4294967295
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