Cisco ASR 5000 Series, Обзор продукта

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IP Services Gateway Overview
▀ Enhanced Feature Support
▄ Cisco ASR 5000 Series Product Overview
OL-22938-02
The number of rules recovered is limited to the following:
3 flow-descriptions per charging-rule-definition
3 Charging-rule-definitions per PDP context
The above are combined limits for opened/closed gates and for uplink and downlink rules. IMSA sessions with
rules more than the above are not recoverable.
Content Service Steering
Content Service Steering (CSS), defines how traffic is handled by the system based on the content of the data presented
by a mobile subscriber. CSS can be used to direct traffic to in-line services that are internal to the system. CSS controls
how subscriber data is forwarded to a particular in-line service, but does not control the content.
IPSG supports steering subscriber sessions to Content Filtering Service based on their policy setting. If a subscriber
does not have a policy setting (ACL name) requiring Content Filtering, their session will bypass the Content Filtering
Service and will be routed on to the destination address.
If subscriber policy entitlements indicate filtering is required for a subscriber, CSS will be used to steer subscriber
sessions to the Content Filtering in-line service.
If a subscriber is using a mobile application with protocol type not supported, their session will bypass the Content
Filtering Service and will be efficiently routed on to destination address.
For more information regarding CSS, refer to the Content Service Steering chapter of the System Enhanced Feature
Configuration Guide .
Multiple IPSG Services
Multiple IPSG services, can be configured on the system in different contexts. Both source and destination contexts
should be different for the different IPSG services. Each such IPSG service functions independently as an IPSG.
Session Recovery
The Session Recovery feature provides seamless failover and reconstruction of subscriber session information in the
event of a hardware or software fault within the system preventing a fully connected user session from being
disconnected.
For more information on this feature, please refer to the Session Recovery chapter in the System Enhanced Feature
Configuration Guide .
Inter-Chassis Session Recovery is not supported.