Cisco® ASR 5000 Platforms Introduction 
Cisco ASR 5000 Series Product Overview ▄  
Reduces latency by creating GTP-U tunnel for data transport between the RNC and the 
GGSN while optimizing SGSN usage for control plane processing and user plane 
functionality for cases such as roaming and lawful intercept. 
Layer 2 Tunneling Protocol (L2TP) support encapsulates data packets between an L2TP 
Access Concentrator (LAC) and an L2TP Network Server (LNS) to create a Virtual Private 
Network (VPN).The system can be configured as either an LAC or LNS in support of 
L2TP.LAC is an optional licensed feature. 
Lawful Intercept (optional 
licensed feature) 
Provides Telecommunication Service Providers (TSPs) with a mechanism to assist Law 
Enforcement Agencies (LEAs) in the monitoring of suspicious individuals (referred to as 
targets) for potential criminal activity. 
Secure VPN Connectivity for the enterprise.Secure L2TP and mobile IP tunneling.System 
architecture provides IPSEC implementation with no performance degradation.Encryption 
Daughter Card (EDC) availability for hardware-based encryption. 
Provides optional OSPFv2 routing with NSSA support. 
Provides optional BGP-4 routing. 
Flow-based Traffic Policing 
(optional licensed feature) 
Provides the traffic policing to control session flow on a flow classification basis.Provides the 
QoS to control session flow on a flow classification basis. 
Traffic Policing and Shaping 
(optional licensed feature) 
Provides the ability to limit network bandwidth on a per subscriber basis.Provides the ability 
to buffer packets which exceeds the allowed limit and transmit them once the traffic flow 
comes below the exceed limit. 
Dynamic QoS Renegotiation 
(ECS support required) 
Provides the ability to manage the risk of bandwidth mis-appropriation. This feature allows 
the Enhanced Charging Service (ECS) to analyze application traffic, and triggers QoS 
renegotiation with the AGW to optimize service performance.It provides Network Controlled 
QoS (NCQoS) and traffic class-based QoS renegotiation support. 
GTPP Server Group support 
  Provides more than one list of GTPP servers through GTPP server group feature at 
context level for GTPP accounting functionality 
  Provides GTPP accounting functionality to individual subscriber through APN 
Session Redirection (―hotlining‖) 
(optional licensed feature) 
Provides the ability to redirect subscriber traffic to an external server through the application 
of Access Control List (ACL) rules.Relies on the Change of Authorization (CoA) feature for 
the dynamic redirection of subscriber IP datagrams. 
Provides session redirection based on sessions having a specific MSID or received from 
specific PCF zones. 
Change of Authorization (CoA) 
and Packet of Disconnect 
RADIUS message support 
Allows system contexts to listen for and act upon CoA and/or disconnect messages from a 
RADIUS server.CoA messages enable the dynamic changing of subscriber 
attributesDisconnect Messages (DMs) allow the termination of subscriber sessions from a 
particular RADIUS serverCoA is supported for use with PDSN. 
RADIUS Server Group support 
(optional licensed feature) 
Provides more than one list of AAA servers through RADIUS server group feature at context 
level for AAA functionalityProvides AAA functionality to individual subscriber through 
realm (domain) APN 
Adjunct Compression Server 
Reduces network complexity and capital expenditure.Application based compression that 
helps conserve radio bandwidth resources.