Cisco Cisco Packet Data Gateway (PDG) Fehlerbehebungsanleitung

Enhanced Charging Service Overview

▀ How ECS Works

▄ Cisco ASR 5000 Series Enhanced Charging Services Administration Guide

OL-22951-01

The following figure illustrates how ruledefs interact with the Protocol Analyzer Stack and Action Engine to produce
charging records.

Figure 3.

ECS In-line Service Processing

E C S In -L in e S e rv ice

P ro to c o l

A n a ly z e r S ta c k

ru le d e fs

(ru le -a p p lic a tio n ro u tin g )

ru le d e fs

(ru le -a p p lic a tio n c h a rg in g )

C h a rg in g E n g in e

b lo c k

X m it

re d ire c t

s trin g , = , > , !, e tc .

C a ll

d e ta il

re c o rd s

In c o m in g

p a c k e ts

(d ire c te d to

E C S b y C S S )

P a c k e t

in s p e c tio n

o u tp u t

s trin g , = , > , !, e tc .

Packets entering the ECS subsystem must first pass through the Protocol Analyzer Stack where routing ruledefs apply to
determine which packets to inspect. Then output from this inspection is passed to the Charging Engine, where charging
ruledefs apply to perform actions on the output.

Routing Ruledefs and Packet Inspection

The following figure and the steps that follow describe the details of routing ruledef application during packet
inspection.