Chapter 3

Topology

Topology-Related Parameters

The connection mode parameter is determined by the physical deployment of the SCE 1000 as follows:

•Bump-in-the-wire installation = Inline connection mode.

•External optical splitter installation = Receive-onlyconnection mode.

On-Failure Mode Parameter

As described in the section The Bypass Mechanism, the bypass card supports four different modes. The following two modes are possible when the SCE 1000 is not operational due to platform failure or boot:

•Bypass — The optical splitter forwards traffic with no intervention of the control application running in the SCE 1000 platform, but monitoring functions continue uninterrupted.

•Cutoff — There is no forwarding of traffic. The link is forced down, resulting in traffic cutoff at Layer1.

The Forwarding mode enables control of traffic flow and is not compatible with the non- operational status.

In a single SCE 1000 topology, the value of this parameter is determined by whether or not the link can be completely cut when the SCE 1000 fails, or whether traffic flow should continue across the link in spite of platform failure.

•Cutoff mode is required for the following:

•Redundant inline topology.

•Non-redundant inline topology if value-added services are crucial and are more important than maintaining connectivity.

•Bypass mode is required for the following:

•Non-redundant inline topology if connectivity is crucial.

Link Failure Reflection Parameter

The link failure reflection refers to the behavior of the SCE 1000 when one of the data links fails. Some network redundant topologies require a layer 1 cutoff in order for the network element to recognize the link failure and translate it into action (switch to redundant link). In this case, if one of the ports fails, it must be reflected to the other port as well.

•Link failure-reflection — When one data port link fails, the SCE 1000 forces the other port link down as well. The port will be forced down as long as the first port link is down. When the problematic port link goes up, the other port link will also be turned on again.

•No link failure-reflection— Link failure is not reflected to the other port.

Note Default value = no link failure-reflection

Cisco SCE 1000 2xGBE Installation and Configuration Guide

3-8

OL-7821-04

 

 

 

 

Page 37 Page 39
Page 38
Image 38
Cisco Systems OL-7821-04, SCE 1000 2xGBE manual On-Failure Mode Parameter, Link Failure Reflection Parameter
Page 37 Page 39

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.
Top Page Image Contents