Chapter 3

Topology

Physical Topologies

•When one SCE 2000 fails (depending on the type of failure) its link traffic is still bypassed to the functioning SCE 2000 and processed there, so the traffic processing continues for both the links.

•The bypass of the traffic through the failed SCE 2000 is configurable, and the user may choose to always cutoff the line that goes through the failed SCE 2000. In this case network redundancy protocols like HSRP are responsible for identifying the line cutoff and switching all the traffic to go through the functioning SCE 2000.

Topology-Related Parameters

Refer to the following sections to determine the correct values for all topology-related parameters before beginning run the initial setup of the SCE 2000.

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 (Refer to Connection Mode Parameter (on page 3-9)):

•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 (Refer to Physically Connected Links Parameter (on page 3-10)).

It is applicable only in a cascade topology.

•Priority — This parameter defines which is the primary SCE 2000 (Refer to Priority (on page 3-10)).

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 (Refer to On-Failure Mode Parameter (on page 3-10)).

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.

Cisco SCE 2000 4xGBE Installation and Configuration Guide

 

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Cisco Systems SCE 2000 4xGBE manual Topology-Related Parameters, SCE 2000 Configuration
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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.
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