Appendix A The External Optical Bypass Module

External Optical Bypass Functionality

External Optical Bypass Functionality

The External Optical Bypass module is connected bump-in-the-wire in the GBE link. It is then connected to the SCE 1000 platform with two types of connections:

•GBE optical connections for data link traffic — GBE connections from the External Optical Bypass module to both GBE line ports.

•Power and Control connection — Connection to a dedicated connector on the SCE 1000 platform back panel, so the SCE 1000 platform can provide power to the External Optical Bypass module. (Note that the power connection also provides the logical control functionality.)

The External Optical Bypass module is normally inactive, (not in bypass), and simply transfers the two GBE signals to and from the SCE 1000 platform.

In case the SCE 1000 platform stops providing power to the External Optical Bypass module, or in case the power cable is disconnected from the optical bypass module, the External Optical Bypass module becomes active, bypassing the two GBE links to the SCE 1000 platform, and thus preserving network connectivity.

The figure below illustrates the operation of the bypass module when it is inactive (not in bypass). The data traffic is simply transferred through the bypass module to the SCE 1000 platform.

Figure A-1: External Optical Bypass Module: Inactive (not in bypass)

The figure below illustrates the operation of the bypass module when it is active (in bypass). The data traffic flows through the bypass module, and the GBE link no longer includes the SCE 1000 platform. Note that when the bypass module is active, it puts the SCE 1000 platform into a loop connection, creating a shortcut between the SCE 1000 platform GBE interfaces.

Figure A-2: External Optical Bypass Module: Active (in bypass)

Cisco SCE 1000 2xGBE Installation and Configuration Guide

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Cisco Systems OL-7821-04 External Optical Bypass Functionality, Figure A-2 External Optical Bypass Module Active in bypass
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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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