Chapter 3

Topology

Physical Topologies

SCE 2000 Configuration

There are four topology-related parameters:

Connection mode: Can be any one of the following, depending on the physical installation of the SCE 2000:

Inline: single SCE 2000 inline

Receive-only: single SCE 2000 receive-only

Inline-cascade: two SCE 2000s inline

Receive-only-cascade: two SCE 2000s receive-only

Physically-connected-links: In cascaded configurations, this parameter defines the number of the link connected to this SCE 2000.

It is applicable only in a cascade topology.

Priority: This parameter defines which SCE 2000 platform is the primary device. It is applicable only in a cascade topology.

On-failure: This parameter determines whether the system cuts the traffic or bypasses it when the SCE 2000 either has failed or is booting. It is not applicable to receive-only topologies.

Any of these parameters may be configured via either the setup command or the

connection-mode command.

Connection Mode Parameter

The connection mode parameter refers directly to the physical topology in which the SCE 2000 is installed. The connection mode depends on two factors:

Inline/Receive-only:

Inline: The SCE 2000 resides on the data link between the subscriber side and the network side, thus both receiving and transmitting packets.

Receive-only: The SCE 2000 does not reside physically on the data link. Data is forwarded to the SCE 2000 via an external switch. The SCE 2000 itself receives only and does not transmit.

Cascade: Indicates a two SCE 2000 topology where the SCE 2000 platforms are connected via the cascade ports.

The connection mode parameter is determined by the physical deployment of the SCE 2000, as follows:

Single SCE 2000 bump-in-the-wire installation = “Inline” connection mode.

Single SCE 2000 optical splitter installation = Receive-only connection mode.

Two SCE 2000 bump-in-the-wire installation = Inline-cascade connection mode.

Two SCE 2000 optical splitter installation = Receive-only-cascade connection mode.

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Cisco Systems SCE 2000 4xGBE manual SCE 2000 Configuration, Connection Mode Parameter

SCE 2000 4xGBE specifications

The Cisco Systems SCE 2000 4xGBE is a robust solution designed to optimize IP networks and enhance service delivery. As a member of Cisco's Service Control Engine (SCE) product line, this device is particularly suited for service providers looking to manage network traffic, improve service quality, and provide a suite of advanced management features.

One of the standout features of the SCE 2000 is its ability to process and analyze network traffic in real-time. This capability allows operators to gain insights into user behavior, application usage, and overall network performance. By utilizing deep packet inspection technology, the SCE 2000 can identify different types of traffic, enabling network managers to enforce policies and prioritize critical applications effectively.

In terms of interface capabilities, the SCE 2000 offers four 1 Gigabit Ethernet (GbE) ports. This versatility allows for easy integration into existing network infrastructure while ensuring ample bandwidth for data transfer. The device supports both IPv4 and IPv6 protocols, making it future-proof and suitable for evolving network demands.

One of the significant technologies employed by the SCE 2000 is Service Level Agreement (SLA) management. This feature ensures that service providers can meet their commitments to customers by monitoring performance metrics such as latency, jitter, and packet loss. The ability to generate reports based on SLA compliance allows for better customer engagement and transparency.

Additionally, the SCE 2000 facilitates dynamic resource allocation, enabling service providers to adapt network resources based on current demand. This elasticity is crucial in managing peak loads and ensuring a seamless user experience. Furthermore, the device’s support for Quality of Service (QoS) policies ensures that critical applications receive the necessary bandwidth and resources dedicated to maintaining operational efficiency.

The SCE 2000 also emphasizes security with features such as intrusion detection and prevention capabilities, helping protect the integrity of the network. This combination of performance monitoring, traffic management, and security makes the SCE 2000 an invaluable tool for service providers.

In conclusion, the Cisco Systems SCE 2000 4xGBE is a powerful network management solution that excels in providing real-time traffic management, SLA compliance, and security features. Its capabilities make it an essential component for service providers aiming to optimize their networks while delivering high-quality services to their customers.