Chapter 8 Troubleshooting

Troubleshooting Overview

Table 8-7

Troubleshooting the Management Subsystem

 

 

 

 

 

Symptom

Diagnostic Action

Possible Cause

Possible Solution

 

 

 

 

 

CLI command: show ip route

Routing tables are incorrectly

Check / reconfigure routing

 

<host-ip-address>

configured (when the host

tables. See Initial Setup

 

 

used as client is not in the

Parameters, page 5-2

 

 

same network as the SCE

Refer to "IP Configuration"

 

 

Platform, and there is more

 

 

in the Cisco SCE8000

 

 

than one gateway on the SCE

 

 

Software Configuration

 

 

Platform network).

Guide.

 

 

 

 

 

 

 

 

CLI commands:

Host is not a member of a

See Initial Setup Parameters,

 

show access-lists

valid access-list.

page 5-2

 

 

 

 

show ip access-class

 

Refer to "Access Control

 

 

Lists “ in the Cisco SCE8000

 

 

 

 

 

 

Software Configuration

 

 

 

Guide.

 

 

 

 

Telnet connection terminates

CLI commands:

Telnet connection may be

Reconfigure line timeout.

automatically

show line

timing out.

timeout <time in seconds>

 

 

 

 

show line vty timeout

 

 

 

 

 

 

Troubleshooting the Link Interface Subsystem

Check the following to help isolate a problem in the link interface subsystem.

In general, the case where no traffic is coming out of the Cisco SCE8000 is often caused by link problems or the 10GBE interface configuration. Note that in some cases, the problem which seems as a transmit problem could be in the Rx (no traffic is being received by the Cisco SCE8000 or there is actually no traffic on the line, which could be a normal situation).

Note In CLI commands for TenGigabitEthernet interfaces, # stands for the number of the SPA module (SCE8000-SIP subslot). This can be 0 through 3.

Problems in the link interface subsystem could be any of the following:

Link is down. (LINK LED not lit and system status is WARNING)

Peer does not receive traffic from Cisco SCE8000 (LINK LED is lit and Tx LED is flashing)

10GBE link is up but not receiving from peer (LINK LED is lit, but Rx LED is not flashing)

 

Cisco SCE8000 Installation and Configuration Guide, Rel 3.1.7

8-10

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Cisco Systems SCE8000 manual Troubleshooting the Link Interface Subsystem

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.