Dual link Inline Installation | Cisco Systems SCE 2000 4/8xFE

Chapter 3

Topology

Physical Topologies

Dual link: Inline Installation

In this topology, one SCE 2000 is connected inline in two full duplex, FE links.

In case the two links are load-shared, asymmetrical routing might occur, and some of the flows may be split, i.e. the upstream packets of the flow go on one link, and the downstream packets go on the other link.

When installed in this topology, the SCE 2000 completely overcomes this phenomenon, and provides its normal functionality as if asymmetrical routing were not occurring in the two links.

Figure 3-3: Single SCE Platform Dual Link Inline Topology

This topology supports both monitoring and control functionality, and is referred to as “inline” connection mode.

Cisco SCE 2000 4/8xFE Installation and Configuration Guide

3-6	OL-7826-05

Image 32

Cisco Systems SCE 2000 4/8xFE manual Dual link Inline Installation, Single SCE Platform Dual Link Inline Topology

Contents

Cisco SCE 2000 4/8xFE Installation and Configuration Guide Corporate Headquarters Cisco SCE 2000 Installation and Configuration Guide N T E N T S Topology Cabling the Line Ports and Completing the Installation Index Preface Document Revision History Chapter Title Description AudienceOrganization Related Publications Conventions Convention Description Boldface font Obtaining Documentation World Wide WebDocumentation CD-ROM Ordering Documentation Cisco.com TechnicalAssistance Center Obtaining Technical AssistanceDocumentation Feedback Contacting TAC by Using the Cisco TAC Website Contacting TAC by TelephonePage Cisco Service Control Concept General Overview Cisco Service Control Capabilities Service Control for Broadband Service Providers SCE Platform Management and Collection SCE Platform in the Network Subscriber Management Service Configuration ManagementNetwork Management Data Collection Introduction to the SCE Platform Front Panel Refer to Connecting the Line Port Quantity Description Connect This Port To… LED Groups Back Panel LED Groups Description Checking the Shipping Container Contents SCE 2000 Installation Checklist Task Verified Date SCE 2000 Platform Topology Considerations Redundancy FunctionalityNumber of links Link Continuity Bypass Mechanism Single Link Inline Topology Physical TopologiesSingle SCE 2000 Topologies Single Link Receive-only Topology Single SCE Platform Single Link Receive-Only Topology Dual link Inline Installation Single SCE Platform Dual Link Inline Topology Two Cascaded SCE 2000s For Dual Links Dual Link Receive-Only Topology Topology-Related Parameters Two Cascaded SCE 2000s Inline Topology SCE 2000 Configuration Connection Mode Parameter Physically Connected Links Parameter Installation and Maintenance Preparing to Install the SCE 2000 Platform Dimension Measurement Tools and Parts Required Specification Acceptable Range Site Requirement GuidelinesAirflow Site Requirements Installing the SCE 2000 Platform Approval Specification Installation Precautions Installing the SCE 2000 on a Workbench or Tabletop Rack-Mounting a SCE 2000 Platform Attaching the Brackets to the SCE Attaching the Mounting Brackets 4-post Attaching the Crossrail Supports to the Rack Assembling the Slider Brackets Mounting the System to the Rack Sliding the SCE Platform into the Rack Attaching a Chassis Ground Connection 10 Grounding the Unit AC Power Supply Overview 11 Grounding the Unit DC 12 AC Power Module LEDs LED State Power Supply Unit Condition Refer to the following tables for LED status information Removing and Replacing a Power Supply Unit Power Supply Specifications Powering Down an AC-Input Power Supply Removing the Power Supply Unit Replacing the Power Supply Unit Reconnecting the Power Reconnecting AC-Input Power Supply Unit Reconnecting DC-Input Power Supply Unit 15 Connecting the DC Power Removing the Fan Module Fan Module OverviewRemoving and Replacing the Fan Module Replacing the Fan Module 17 Inserting the Fan Module Replacing the Battery Connecting the Local Console Setting Up the Local Console Type y and press Enter System configuration dialog begins Parameter Definition Initial System ConfigurationSetup Command Parameters Parameter Definition SCE 2000 ? Configuring Initial Settings Configuring the Hostname Setting the Passwords Configuring Time Settings Type the minutes offset from UTC and press Enter Configuring the DNS Settings Configuring the RDR Formatter Destination ConfiguringAccess Control Lists ACLs Initial IP address Wildcard bits Range Entry FormatsOrder of Entries Does this entry permit access? yes When all ACLs have been created, press Enter Configuring Snmp Enter the Snmp trap managers menu Type the name of the system administrator and press Enter Configuring the Topology-Dependent Parameters Is this a cascade deployment? no Enter On-failure behavior 1- bypass Cutoff Enter your choice Example Completing and Saving the Configuration System informs you that the configuration is complete Connecting the Management Interface Cabling the Management Port Verifying Management Interface Connectivity Example Page Cabling the Line Ports and Completing Installation Connecting the line ports to the network Cabling Diagrams Cabling Diagram for Single Link Inline Topology Single Link Receive-only Topology Dual Link Single SCE 2000 Topologies Dual Link Two SCE 2000s Topology SCE 2000 #2 Connecting the FE Line Interface Ports Cabling the FE Line Port Testing Connectivity Examining Link LEDs and Counters Examining the Link LEDs This displays the port link and auto-negotiation status Installing a Cascaded System Use the show interface linecard 0 connection-mode command Topology-Related Parameters for Redundant Topologies CLI Commands for Cascaded SystemsConfiguring the Connection Mode Link Mode Monitoring the System Loading and Activating a Service Control Application Page Starting the SCE 2000 Platform Checking Conditions Prior to System Startup Starting the System and Observing Initial Conditions Viewing the User Log Counters Final TestsVerifying Operational Status Managing SCE 2000 Configurations Viewing Configuration Saving the Configuration Settings Type copy running-config startup-config Recovering a Previous Configuration SCE 2000#copy running-config startup-config Performing Complex Configurations Copy tffs0system/prevconf/config.tx1 tffs0system/config.txt Displaying the SCE Platform Version Information SCE 2000#show version CLI show inventory command Displaying the SCE Platform Inventory Displaying the System Uptime Rebooting and Shutting Down the SCE PlatformRebooting the SCE Platform Following example shows the commands for system shutdown Shutting Down the SCE PlatformPage Troubleshooting Troubleshooting Overview Action Yes Step Troubleshooting ToolsCLI Commands for Troubleshooting Troubleshooting the management subsystem User Log Logging System Copying the User Log Viewing the User Log Counters SCE 2000 Operational Status Check the LEDsGenerating a File for Technical Support Problem Solving Using a Subsystems Approach Identifying Startup Problems Troubleshooting the Power Subsystem Symptom Possible Cause Possible Solution LED Label Color State Function Troubleshooting the Firmware Package InstallationDiagnostic Action Troubleshooting the Management Subsystem Management-image Instead of system-image Symptom Diagnostic Action Possible Cause Possible Solution Refer to Access Control Lists Troubleshooting the Link Interface Subsystem Host-ip-address Show interface Troubleshooting Problem Solving Using a Subsystems Approach Page Index Index Index