The Cisco 7600 Series Session Border Controller (SBC) builds on the continuous system operation and multimedia scalability provided by the market-leading Cisco 7600 Series Routers. With the integration of SBC functions into Layer 2 and Layer 3 services pr
The Cisco 7600 Series Session Border Controller (SBC) builds on the continuous system operation and multimedia scalability provided by the market-leading Cisco 7600 Series Routers. With the integration of SBC functions into Layer 2 and Layer 3 services provided by the Cisco 7600 Series, the Cisco 7600 SBC eliminates the need for overlay networks and standalone appliances. It provides an open and flexible architecture for all service provider deployments, whether for peering with other service providers or for direct end-customer access. With its ability to support unified and distributed SBC deployments, the Cisco 7600 SBC offers cable, wireline, and wireless service providers superior deployment flexibility. By supporting IP Multimedia Subsystem (IMS) and non-IMS services, the Cisco 7600 SBC further accelerates network convergence while providing investment protection for Cisco 7600 Series Routers.
Product and Application Overview
SBCs control and manage real-time multimedia traffic flows between IP network borders, handling signaling, data, voice, and video traffic. As part of this function, the SBC performs native IP interconnection functions required for real-time communications such as access control, firewall traversal, bandwidth policing, accounting, signaling interworking, legal intercept, and quality-of-service (QoS) management. With its comprehensive suite of features, the Cisco 7600 Series Routers can accommodate a broad range of SBC applications.
The Cisco 7600 SBC solution incorporates the security, QoS, and secure virtualization capabilities of the Cisco 7600 Series Router to facilitate support for service provider-to-service provider (Network-to-Network Interface [NNI]) interconnect and service provider-to-access layer (User-to-Network Interface [UNI]) interconnect for data, voice over IP (VoIP), and video services.
The Cisco 7600 SBC solution takes advantage of the advanced hardware-processing capabilities of the Cisco Application Control Engine (ACE) hardware to provide a flexible, scalable, and feature-rich SBC implementation.
Service Provider-to-Service Provider Interconnect
With the increasing deployment of end-to-end VoIP and IP video services, service providers are looking to interconnect directly with IP networks and minimize time-division multiplexing (TDM)-based handoffs to other service provider networks. Direct IP interconnect helps minimize operating expenses (OpEx) and capital expenditures (CapEx) by eliminating back-to-back TDM gateways. It also increases media quality and helps ensure transparency of IP-based services across network borders. The Cisco 7600 SBC provides the following critical functions required for direct IP interconnect without introducing any additional network elements:
• Protocol and media interworking
• Session routing
• Call Admission Control (CAC) and policing
• Quality monitoring and enforcement
• Media and signaling security and Network Address Translation (NAT) mechanisms
• Authentication, authorization, and accounting (AAA)
• Media transcoding with an external media server