A P P E N D I X A

The External Optical Bypass Module

The SCE 1000 platform External Optical Bypass module preserves the service provider GBE links in case of complete power failure of the SCE 1000 platform, or for implementing a maintenance window.

The SCE 1000 platform state-of-the-art Service Control platform is being deployed at ISPs, Cable and Wireless Tier1 provider networks, and is therefore required to comply with the carrier grade availability requirements of these mission critical networks.

The SCE 1000 platform already includes an internal Electrical Bypass module that puts the SCE 1000 platform into bypass state in case of a software or hardware failure at the platform main board, thereby preserving the GBE network link.

The External Optical Bypass module provides additional service protection by enabling automatic preservation of the network GBE link in two additional important scenarios:

•Complete loss of power in the SCE 1000 platform — The SCE 1000 platform includes redundant Power Supply Units and redundant power feeds, in both the DC and AC versions. However, in case either both PSUs fail, or both power feeds stop providing power to the SCE 1000 platform simultaneously, the network link will be preserved by the External Optical Bypass module.

•Maintenance window implementation — In certain situations the SCE 1000 platform should be pulled from the network for replacement, such as:

•Hardware failure in the SCE 1000 platform.

•Hardware upgrade on the SCE 1000 platform

In these cases, a maintenance window is implemented, during which the SCE 1000 platform is pulled from the network. It may be replaced by another SCE 1000 platform, either almost immediately, or after several hours or days. An External Optical Bypass module enables the implementation of such replacement while preserving normal operation of the network link.

The External Optical Bypass module is another important component in the Cisco overall carrier- grade solution for high-availability service provider networks.

Cisco SCE 1000 2xGBE Installation and Configuration Guide

 

OL-7821-04

A-1

 

 

 

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Cisco Systems SCE 1000 2xGBE, OL-7821-04 manual External Optical Bypass Module
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SCE 1000 2xGBE, OL-7821-04 specifications

Cisco Systems OL-7821-04, SCE 1000 2xGBE is an advanced network service appliance designed to deliver superior performance and reliability for service providers seeking to optimize their networks. This compact yet powerful device is integral in addressing the growing demands of data traffic in telecommunications and data centers.

One of the standout features of the SCE 1000 is its ability to support both IPv4 and IPv6 networks, ensuring compatibility with current and future networking protocols. This dual-stack capability empowers service providers to seamlessly transition and integrate next-generation applications without jeopardizing service quality.

The SCE 1000 is equipped with two Gigabit Ethernet (GbE) ports that enhance its connectivity options and allow for increased bandwidth. This dual-port configuration supports high-speed data transfers and streamlined operations, making it ideal for enterprises with substantial networking demands. Its flexible interface options facilitate easy integration into existing network architectures without requiring extensive reconfiguration.

An essential characteristic of the SCE 1000 is its advanced service creation technology, which allows for dynamic traffic management. This feature intelligently prioritizes and optimizes applications, ensuring that critical services receive the bandwidth they need while maintaining overall network efficiency. Service providers can leverage this capability to implement Quality of Service (QoS) policies, delivering a consistent user experience even during peak usage times.

Furthermore, the SCE 1000 supports various traffic engineering methods, including deep packet inspection and application recognition, enabling operators to monitor and control network traffic effectively. This capability is particularly crucial in identifying and mitigating potential network threats, resulting in enhanced security measures.

With its robust architecture, the device also offers scalability, accommodating the growing network requirements of service providers. As businesses grow and data use expands, the SCE 1000 can adapt without compromising performance.

In summary, the Cisco Systems OL-7821-04, SCE 1000 2xGBE is a versatile network service appliance that combines high performance, advanced service creation technology, and strong security features. It stands out as an essential tool for service providers aiming to enhance their network capabilities and deliver superior services to customers. Its dual GbE ports, IPv4/IPv6 support, and dynamic traffic management make it a reliable choice for organizations anticipating significant data growth.
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