Chapter 6 Cabling the Line Ports and Completing the Installation

Cascaded Systems

inline

physically connected links

behavior upon failure of the SCE platform

primary/secondary

Step 1 From the Cisco SCE8000(config if)# prompt, type connection-modeinline-cascade

physically-connected-links (link-0link-1)priority (primarysecondary) on-failure

(external-bypassbypasscutoff) and press Enter.

EXAMPLE 1

Use the following command to configure the primary SCE platform in a two-SCE platform inline topology. Link 1 is connected to this SCE platform and the behavior of the SCE platform if a failure occurs is bypass.

Cisco SCE8000(config if)# connection-mode inline-cascade physically-connected-links link-1

priority primary on-failure bypass

EXAMPLE 2

Use the following command to configure the SCE platform that might be cascaded with the SCE platform in Example 1. This SCE platform would have to be the secondary SCE platform, and Link 0 would be connected to this SCE platform, since Link 1 was connected to the primary. The connection mode would be the same as the first, and the behavior of the SCE platform if a failure occurs is also bypass.

Cisco SCE8000(config if)# connection-mode inline-cascade physically-connected-links link-0

priority secondary on-failure bypass

How to Set the Link Mode

The SCE platform has an internal hardware card used to maintain the links even when the SCE platform fails. This hardware card has three possible modes of operation:

bypass

forwarding

cutoff

Normally, the link mode is selected by the SCE platform software according to the configured connection-mode. However, the link mode command can be used to enforce a specific desired mode. This may be useful when debugging the network, or in cases where we would like the SCE platform just to forward the traffic. (Note that this is only relevant to inline topologies even though the configuration is available also when in receive-only mode.)

The following link mode options are available:

Forwarding — forwards traffic on the specified link to the SCE platform for processing.

Bypass — stops all forwarding of traffic on the specified link to the SCE platform. Traffic still flows on the link, but is not processed in any way by the SCE platform.

This does not affect the redundancy states.

Cutoff — completely cuts off flow of traffic through the specified link.

Note the following recommendations and restrictions:

 

 

Cisco SCE8000 Installation and Configuration Guide, Rel 3.1.7

 

 

 

 

 

 

OL-16478-02

 

 

6-17

 

 

 

 

 

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Cisco Systems SCE8000 manual How to Set the Link Mode, Example

SCE8000 specifications

Cisco Systems SCE8000 is an advanced service control edge solution designed to enhance the management and performance of service provider networks. Targeted at carriers and large enterprises, the SCE8000 is characterized by its capacity to efficiently handle traffic management, quality of service (QoS), and policy enforcement across various services including voice, video, and data.

One of the main features of the SCE8000 is its scalability. The platform supports a high-density architecture, allowing service providers to seamlessly expand their networks to accommodate growing traffic demands. This scalability is complemented by an impressive throughput, which enables the handling of millions of concurrent sessions, making it ideal for environments with significant user activity.

The SCE8000 employs advanced traffic management capabilities, leveraging deep packet inspection (DPI) technology. This allows for granular visibility into network traffic, enabling service providers to make informed decisions about resource allocation and policy application. Additionally, the device supports multiple protocol analysis, ensuring compatibility across various network services and enhancing overall efficiency.

Quality of Service (QoS) is another critical characteristic of the SCE8000. The platform provides sophisticated mechanisms to prioritize traffic, thereby ensuring that delay-sensitive applications such as VoIP and video streaming receive the necessary bandwidth. This capability is enhanced by Cisco's intelligent traffic shaping and congestion management features, which work together to optimize the user experience even in congested network conditions.

The SCE8000 also integrates robust security features, including session initiation protocol (SIP) security, to protect against malicious attacks and maintain service integrity. This is particularly important in today's cyber landscape where service providers must safeguard their infrastructure from various threats.

Automation and programmability are essential characteristics of the SCE8000, enabling operators to implement policies quickly and efficiently. This feature allows for dynamic scaling and rapid deployment of new services, significantly reducing the time to market for new offerings.

In conclusion, Cisco Systems SCE8000 stands out as a powerful platform for managing service provider networks. With its high scalability, advanced traffic management, quality of service assurance, robust security features, and automation capabilities, the SCE8000 enables service providers to deliver a superior customer experience while optimizing their operational efficiency. This makes it an invaluable asset for any organization looking to enhance its network performance and service delivery.