Chapter 8 Troubleshooting

Troubleshooting Overview

.

 

Table 8-7

 

Troubleshooting the Management Subsystem

 

 

 

 

 

Symptom

Diagnostic Action

Possible Cause

Possible Solution

 

 

 

 

 

Management link down:

CLI command show

RJ 45 connector is not

Reconnect the cable to the

Mng LINK LED not lit

 

interface

connected to the platform or

GBE port and to network.

 

GigabitEthernet 1/1

to the network.

 

 

 

 

 

 

 

ping to management

 

 

 

 

 

interface fails

 

 

 

 

 

 

 

 

 

 

 

 

Cable is broken.

Check / Replace the cable.

 

 

 

 

Management link up:

CLI commands

One of the following

See Initial Setup Parameters,

Mng LINK LED is lit

show ip route

configurations may be wrong:

page 5-2

 

 

ping to management

show ip

IP address / subnet mask

Refer to "IP Configuration"

 

in the Cisco SCE8000

 

interface fails

 

default-gateway

IP default gateway

 

 

Software Configuration

 

 

 

 

 

 

 

 

 

 

Guide.

 

 

 

 

 

 

 

CLI command

An ACL may be assigned that

See Initial Setup Parameters,

 

 

show access-lists

denies entry.

page 5-2

 

 

 

 

 

 

 

 

 

Refer to "Access Control

 

 

 

 

 

Lists" in the Cisco SCE8000

 

 

 

 

 

Software Configuration

 

 

 

 

 

Guide.

 

 

 

 

 

 

Telnet connection cannot

CLI command show

Management interface IP

Check / reconfigure

 

be established

 

interface

address or subnet mask is

management port IP address

Mng LINK LED is not lit

 

GigabitEthernet 1/1

incorrect.

and subnet mask

 

 

 

 

 

(link is down)

 

 

 

 

 

 

 

 

 

Telnet connection cannot

CLI command: show telnet

Telnet server is disabled.

Enable Telnet server: service

 

be established

status

 

telnetd

Mng LINK LED is lit

 

 

 

 

 

(link is up)

 

 

 

 

 

 

 

 

 

 

 

CLI command: show telnet

Too many Telnet connections

Close one or more of the open

 

 

sessions

(up to five concurrent

Telnet sessions.

 

 

 

 

sessions are supported via

 

 

 

 

 

Telnet ).

 

 

 

 

 

 

 

 

CLI command: s how ip

Default gateway is incorrect

Check / reconfigure default

 

 

default-gateway

(when the host used as client

gateway. See Initial Setup

 

 

 

 

is not in the same network as

Parameters, page 5-2

 

 

 

 

the SCE Platform).

Refer to "IP Configuration"

 

 

 

 

 

 

 

 

 

 

in the Cisco SCE8000

 

 

 

 

 

Software Configuration

 

 

 

 

 

Guide.

 

 

 

 

 

 

Cisco SCE8000 Installation and Configuration Guide, Rel 3.1.7

 

OL-16478-02

8-9

 

 

 

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Cisco Systems SCE8000 manual Symptom Diagnostic Action Possible Cause Possible Solution

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.