Chapter 6 Cabling the Line Ports and Completing the Installation

Connecting the Line Ports to the Network

Multi-Gigabit Service Control Platforms (MGSCP) Topologies

In this topology, multiple Cisco SCE 8000 platforms are connected to a Cisco 7600 Series router used as a load-balancer (“dispatcher”) between the platforms. Traffic enters the router, is distributed between the Cisco SCE8000 platforms by the router EtherChannel, and returns to the router to be forwarded to its original destination.

General guidelines for MGSCP topologies:

•Since there are two links per Cisco SCE8000 platform, the minimum number of platforms required is half the number of links used.

•Each link corresponds to one port on the EtherChannel (EC) on the Cisco 7600 Series router. Each EC supports a maximum of eight active ports. Therefore, if all eight EC ports are configured, four Cisco SCE8000 platforms are required.

•For N+1 redundancy, two additional ports (connected to the standby platform) must be configured as standby ports on both ECs.

Therefore, for N+1 redundancy, one router and five Cisco SCE8000 platforms would be used to support eight links.

•If two Cisco 7600 Series routers are used (for network redundancy), one link on each Cisco SCE8000 platform is connected to each router. This requires twice the number of Cisco SCE8000 platforms, one platform for each link.

–A minimum of eight Cisco SCE8000 platforms are required to support eight ports.

–For N+1 redundancy, nine Cisco SCE8000 platforms would be used to support eight active links When cabling to the EC, follow these guidelines:

•The Cisco SCE platform ports MUST be connected to the EC ports in the same order on both sides.

•The EC ports should be sorted in an ascending order by their physical interface numbers.

•In a topology with two Cisco 7600 Series routers, the order of connection to the EC ports must be the same on both routers. In order for both routers to send the traffic of a given subscriber to the same SCE platform, the SCE platforms must be connected to both routers in exactly the same order (one SCE platform connected to the first link on both routers, another SCE platform connected to the second link on both routers, and so on).

•Refer to MGSCP Connectivity Examples, page 6-4for specific examples explaining how to connect the Cisco SCE8000 ports to the EC ports in various topologies.

•Refer to Dual Link: Single Cisco SCE8000 Topologies, page 6-2and Single Link: Inline Topology, page 6-2for further information on specific cabling schemes.

MGSCP Connectivity Examples

•The First Step-Ordering the EC Ports, page 6-5

•Single Router MGSCP Connectivity, page 6-5

•Single Router with N+1 Redundancy MGSCP Connectivity, page 6-5

•Dual Routers MGSCP Connectivity, page 6-6

•Dual Routers with N+1 Redundancy MGSCP Connectivity, page 6-7

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Cisco Systems SCE8000 manual Multi-Gigabit Service Control Platforms Mgscp Topologies, Mgscp Connectivity Examples
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SCE8000 specifications

Cisco Systems SCE8000 is an advanced service control edge solution designed to enhance the management and performance of service provider networks. Targeted at carriers and large enterprises, the SCE8000 is characterized by its capacity to efficiently handle traffic management, quality of service (QoS), and policy enforcement across various services including voice, video, and data.

One of the main features of the SCE8000 is its scalability. The platform supports a high-density architecture, allowing service providers to seamlessly expand their networks to accommodate growing traffic demands. This scalability is complemented by an impressive throughput, which enables the handling of millions of concurrent sessions, making it ideal for environments with significant user activity.

The SCE8000 employs advanced traffic management capabilities, leveraging deep packet inspection (DPI) technology. This allows for granular visibility into network traffic, enabling service providers to make informed decisions about resource allocation and policy application. Additionally, the device supports multiple protocol analysis, ensuring compatibility across various network services and enhancing overall efficiency.

Quality of Service (QoS) is another critical characteristic of the SCE8000. The platform provides sophisticated mechanisms to prioritize traffic, thereby ensuring that delay-sensitive applications such as VoIP and video streaming receive the necessary bandwidth. This capability is enhanced by Cisco's intelligent traffic shaping and congestion management features, which work together to optimize the user experience even in congested network conditions.

The SCE8000 also integrates robust security features, including session initiation protocol (SIP) security, to protect against malicious attacks and maintain service integrity. This is particularly important in today's cyber landscape where service providers must safeguard their infrastructure from various threats.

Automation and programmability are essential characteristics of the SCE8000, enabling operators to implement policies quickly and efficiently. This feature allows for dynamic scaling and rapid deployment of new services, significantly reducing the time to market for new offerings.

In conclusion, Cisco Systems SCE8000 stands out as a powerful platform for managing service provider networks. With its high scalability, advanced traffic management, quality of service assurance, robust security features, and automation capabilities, the SCE8000 enables service providers to deliver a superior customer experience while optimizing their operational efficiency. This makes it an invaluable asset for any organization looking to enhance its network performance and service delivery.
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