Cisco Cisco Mobility Unified Reporting User Guide
Content Filtering Support Overview
Category-based Content Filtering Support ▀
Cisco ASR 5000 Series Product Overview ▄
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The ECS subsystem includes L3–L7 deep packet inspection capabilities. It correlates all L3 packets with higher layer
criteria such as URL detection within an HTTP header, it also provides stateful packet inspection for complex protocols
like FTP, RTSP, and SIP that dynamically open ports for the data path.
The Content Filtering subsystem uses the deep-packet inspection capabilities of ECS for URL/URI extraction.
ECS functionality is managed by the following components:
criteria such as URL detection within an HTTP header, it also provides stateful packet inspection for complex protocols
like FTP, RTSP, and SIP that dynamically open ports for the data path.
The Content Filtering subsystem 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 Content Filtering services.
Session Manager (SessMgr): A single SessMgr treats ECS charging and Content Filtering that is applicable to
common subscriber sessions.
Components of Category-based Content Filtering Solution
The Category-based Content Filtering solution uses the following components:
Content Filtering Subsystem in ECS
Content Rating Rules Update Server
Master Content Rating Database Server (MCRDBS)
ECS Storage System (ESS)
RADIUS Server/Policy Manager
Web Element Manager (WEM)
Mobility Unified Reporting (MUR) System
The following figure shows a high-level view of the Category-based Content Filtering architecture with ECS, and other
components in a deployment scenario.
components in a deployment scenario.