Руководство По Устранению Ошибки для Cisco Cisco Packet Data Gateway (PDG)
Content Filtering Support Overview
▀ URL Blacklisting Support
▄ Cisco ASR 5000 Series Content Filtering Services Administration Guide
OL-22959-01
Figure 1.
High-Level Architecture of URL Blacklisting with ECS
U R L B la c k lis tin g S y s te m
In - m e m o ry B L D B
( In S e s s io n M a n a g e r )
S e s s io n M a n a g e r
T a s k ( D P I )
O P T B L D B
F ile s
S e s s io n C o n tro lle r T a s k
D a ta b a s e
L o a d /
U p d a te
O P T B L D B
B L O P T B L D B
D a ta b a s e U p d a te
W E M S e rv e r
S F T P
B la c k lis t S o u rc e
B L F ile
M S / S S
URL Blacklisting Solution Components
The URL Blacklisting solution uses the deep-packet inspection capabilities of ECS for URL/URI extraction.
ECS functionality is managed by the following components:
Session Controller (SessCtrl): The SessCtrl runs on the primary SPC/SMC and is responsible for managing
ECS and URL Blacklisting services.
Session Manager (SessMgr): A single SessMgr treats ECS charging and URL Blacklisting that is applicable to
common subscriber sessions.
Apart from ECS, the URL Blacklisting solution uses the following components:
Content Filtering Subsystem in ECS
Web Element Manager (WEM)