Session Control Manager Overview
â–€ Features and Functionality - Base Software
â–„ Cisco ASR 5000 Series Product Overview
SIP Denial of Service (DoS) Attack Prevention
The A-BG provides a scalable proxy network and a distributed Network Address Translation (NAT) network which
effectively mitigates DoS attacks.
Prevents a variety of DoS attacks specific to CSCF and SIP technology.
SIP Intelligence at the Core
The SCM provides operators with an easy on-ramp for deploying SIP-based subscriber services while supporting
various network control operations that provide the necessary intelligent control to insure a robust, carrier-class
subscriber experience is achieved in this always changing multimedia environment.
When integrated into Cisco's session-aware Home Agent or GGSN platform, the SCM becomes the first SIP hop in the
network, allowing operators to monitor and control all SIP-based sessions and execute additional value-added functions.
As the logical anchor point within the packet core, the SCM improves the user experience with device and location
independence, and enhances subscriber control and policy enforcement with faster, more intelligent decisions for
multimedia services.
Furthermore, as Fixed Mobile Convergence takes hold, it will be especially important to incorporate the SCM in the
packet core in order to achieve mobility and voice continuity between multiple access networks (3G, WiFi, WiMAX,
etc.).
Figure 148. Cisco Integrated Session Control Manager
Integrated
Session Control Manager
ST40
SIP
Bearer
SIP-AS
SIP-AS
SIP-AS
IMS Packet
Network
UMTS/WCDMA
IP Access
Network
MMD Packet
Network
CDMA2000
Next Gen.
Packet NW
Future:
WiFi, WiMAX
SIP Large Message Support
Large notify contains information about multiple users in one message, which reduces the number of SIP messages in
the network. Large SIP messages can be sent on UDP if the endpoint can support fragmentation; otherwise, UDP to
TCP switching can be used to transport large messages intact.
To Next Page
Loading...
Need help?
General
