Cisco ASR 5000 Series User Manual

Enhanced Charging Service Overview
▀ Accounting Interfaces
▄ Cisco ASR 5000 Series Product Overview
OL-22938-02
EDR Generation in Flow-end and Transaction Complete Scenarios with sn-volume Fields
―sn-volume-amt‖ counters will be re-initialized only when the fields are populated in EDRs. For example, consider the
following two EDR formats:
―sn-volume-amt counters‖ will be re-initialized only if these fields are populated in the EDRs. Now if edr2 is generated,
these counters will not be re-initialized. These will be re-initialized only when edr1 is generated. Also, note that only
those counters will be re-initialized which are populated in EDR. For example, in the following EDR format:
If edr3 is generated, only uplink bytes and downlink bytes counter will be re-initialized and uplink packets and
downlink packets will contain the previous values till these fields are populated (say when edr1 is generated).
For the voice call duration for SIP reporting requirements, ECS SIP analyzer keeps timestamp of the first INVITE that it
sees. It also keeps a timestamp when it sees a 200 OK for a BYE. When this 200 OK for a BYE is seen, SIP analyzer
triggers creation of an EDR of type ACS_EDR_VOIP_CALL_END_EVENT. This will also be triggered at the time of
SIP flow termination if no 200 OK for BYE is seen. In that case, the last packet time will be used in place of the 200
OK BYE timestamp. The EDR generation logic calculates the call duration based on the INVITE and end timestamps, it

Cisco ASR 5000 Series Specifications

General

Brand	Cisco
Model	ASR 5000 Series
Category	Network Router
Language	English