Slow Performance, Excessive Collisions | Paradyne 8540, 8546

Diagnostics and Troubleshooting

Slow Performance

PROBLEM: Performance is slow.

ACTION: 1. Verify that there are enough buffers on the System Info screen (see Monitoring → Card Status (B-A) in Chapter 7).

2.Check the Ethernet Statistics screen for excessive Cycle Redundancy Check (CRC) errors (see Monitoring → Physical Layer (B-B) in Chapter 7).

Excessive Collisions

PROBLEM: Excessive collisions on an Ethernet port.

ACTION: 1. Determine if your network is too large or long (single

Ethernet cable or end-to-end cable).

2.Check to see if there are too many repeaters.

3.Check to see if there are too many users on a single Ethernet.

8000-A2-GB20-20

November 1997

8-11

Image 131

Paradyne 8540, 8546 manual Slow Performance, Excessive Collisions

Contents

Hotwire Dslam for 8540 and 8546 DSL Cards Copyright 1997 Paradyne Corporation All rights reserved Contents Initial Setup Instructions DSL Card Configuration Diagnostics and Troubleshooting Static Route Warning Messages Glossary Index Document Purpose and Intended Audience About This Guide Section Description Document Summary Section Description Product-Related Documents What is the HotWire DSLAM? HotWire Dslam System Description Customer Premises CP HotWire Dslam ComponentsNetwork Service Provider Central Office CO One Management Communications Controller MCC card HotWire Dslam Software Functionality FeaturesLevels of Access Monitoring the System Configuring the System Troubleshooting and Diagnostics Overview HotWire Menus and Screens Menu and Screen Formats Components of a HotWire Menu Components of a HotWire Screen HotWire 8800 MCC 8000 Keys Definition Commonly Used Navigation Keys HotWire Chassis Main Menu HotWire Menus a Hierarchical View Applications HotWire ± MCC MenuHotWire-MCC Diagnostics Interfaces ConfigurationPorts Users Card Status Network Protocol MonitoringPhysical Layer HotWire ± DSL Menu IP Router Dhcp Relay Ports PPP Stats Card/CPE Status Operator Login Screen Reviewing the Levels of Access Position Display Description Card Selection Screen Procedure Accessing the HotWire ± MCC Menu Automatically Logging Off Exiting From the SystemManually Logging Off Accessing the System for the First Time Initial Setup Instructions Initial Setup Instructions Additional Setup Instructions Field Input Description Whats Next?Chassis Information Screen Port Naming Convention Configuring the HotWire Dslam For the Management Domain See Perform task Configuring MCC Cards, DSL Cards, and RTUs For each Service Domain See Perform task DSL Card DCE ManagerServer 10BT DCE Manager Router MCC Card ISP Router Service Domain Field Description Input Setting Time and Date Screen Net Assigning IP Addresses to the Backplane on the MCC Card Assigning IP Addresses to the DSL Cards on the MCC Card Select Configuration → Snmp → Communities/Traps A-F-D Select Configuration → IP Router→ StaticRoutes A-E-A Creating the Default Route Selecting a DSL Card to Configure Resetting the MCC Card Host Configuring 5446 RTU IP Host Addresses on the 8546 DSL Card Select Configuration → IP Router → StaticRoutes A-E-A Configuring a Static Route to an NMS on each DSL Card Assigning IP Addresses to the DSL Card LAN Resetting the DSL Card Configuring Static Routes to End Users on each DSL Card Configuring Dhcp Relay Agent dynamic addressing Creating Default Route or Source Route on the DSL MCC Configuration Card Status Screens MCC Card Configuration Card Info System Information DNS Setup Configure DNSCard Status Menu Options 1 Card Status Menu Options 2 Apply Download Card Reset Reset SystemCard Status Menu Options 3 Download Code Download Code and Apply Download General Interfaces MCC Configuration Ports Screens Reserved for Future UseMCC Configuration Interfaces Screens Interfaces Menu Options 1 Input Filter ± Optional Output Filter ± Optional Interfaces Menu Options 2IP Network Base Subnet Mask ± nnn.nnn.nnn.nnn format Users Menu Options MCC Configuration Users ScreensUsers Configure Account Martian Networks MCC Configuration IP Router ScreensIP Router Menu Options 1 Static Routes Filter Table IP Router Menu Options 2 Destination Address ± nnn.nnn.nnn.nnn format IP Router Filters IP Filter ConfigurationDelete Rule ± Yes/No Go to Rule Number ± Default = IP Router Menu Options 3 Delete Entry Delete ARP Entry C IP Router Menu Options 4Parameters a IP Address/Host Name ± nnn.nnn.nnn.nnn format Logical Entities Snmp Logical Entities MCC Configuration Snmp ScreensSnmp Menu Options 1 Security Snmp Security Communities/Traps Snmp Communities/Traps Snmp Menu Options 2 DSL Options MCC DSL Cards Screen DSL Configuration Card Status Screens DSL Card Configuration Card Status Options 1 Card Status Options 2 Card Status Options 3 Card Status Menu Options 4 DSL Ports DSL Parameters DSL Configuration Ports ScreensPorts Options 1 Ethernet Port Ports Options 2 Interfaces Options 1 DSL Configuration Interfaces Screens Interfaces Options 2 Link Options Echo Policy Default =Interfaces Options 3 Negotiate Options Users Options DSL Configuration Users Screens IP Router Options 1 DSL Configuration IP Router Screens IP Router Options 2 Delete Rule ± Yes/No Go to Next Rule ± Yes/No IP Router Options 3 Delete ARP Entry Delete ARP EntryC IP Router Options 4 Snmp Options 1 DSL Configuration Snmp Screens Snmp Options 2 DSL Configuration Dhcp Relay Screens Servers 1±8 B Dhcp Relay OptionsDomain Names Servers 1±8 and Servers 9±16 B or C RTU Information DSL Configuration RTU ScreensRTU Information MCC Monitoring Menu Tree Monitoring the HotWire Dslam Card Info General Card Information Login HistoryMCC Monitoring Card Status Screens Active List Active Ports List MCC Monitoring Physical Layer ScreensPhysical Layer Options 1 Syslog Hdlc Bus Stats Hdlc Bus Statistics Physical Layer Options 2Ether Statistics Ethernet Statistics Status Interface Status MCC Monitoring Interfaces ScreensInterfaces Options Active List Active Interfaces List Socket Statistics MCC Network Protocol ScreensNetwork Protocol Options 1 UDP Statistics Network Protocol Options 2 TCP Data Stats TCP Statistics Network Protocol Options 3 IP Statistics Network Protocol Options 4TCP Connection Statistics Snmp Statistics Network Protocol Options 5Icmp Statistics Icmp Packet Statistics Hdlc Stats Hdlc Statistics Snmp Authentication StatisticsNetwork Protocol Options 6 Routing Table Screen MCC IP Router ScreensRouting Table ARP Table Routing Information Window DSL Monitoring Card Status Screens DSL Monitoring Menu Tree Card Status Options DSL Monitoring Physical Layer Screens Physical Layer Options 2 Physical Layer Options 3 DSL Perf Stats DSL Performance Stats Physical Layer Options 4DSL Link Perf DSL Link Performance Summary DSL Xmit Status DSL Transmit Stats DSL Error StatsPhysical Layer Options 5 DSL Monitoring Interfaces Screens DSL Network Protocol Screens Network Protocol Options 2 TCP Data Stats TCP Data Statistics Network Protocol Options 4 Network Protocol Options 5 Hdlc Statistics Hdlc Statistics Ipcp General Stats PPP H C Network Protocol Options 7PPP Stats General H a LCP Stats PPP H B 10. IP Router Options 1 DSL IP Router Screens Routing Table Routing Information Window 10. IP Router Options 2 10. IP Router Options 3 11. RTU Information Applications Screens Diagnostics and Troubleshooting Telnet MCC Card only Applications OptionsPing MCC and DSL TraceRoute Diagnostic Screens Packet Echo Test Diagnostics OptionsAlarms Card Alarms Selftest Model # M R D U X X Troubleshooting Major Alarms 1 Failure Type Action Checking Alarms Ethernet port 1. Check cable connections to the Dslam Major Alarms 2 Failure Type Action Threshold Minor Alarms 1 Failure Type ActionMargin Link Down Error RateFailure Type Action Network Problems Excessive Collisions Slow Performance Filters Not Working No Snmp Connection Established No Response at Start Up IP Routing ProblemsNo PPP Traffic Cannot Communicate with Interface System Does Not Recognize New DSL CardsLarge Number of Traps Cannot Communicate with 5446 RTU from MCC Card Cannot Upload Configurations to a Unix ServerUnexpected Subnet Data MCC User Accounts For Telnet Terminal Access to MCC Card DSL User Accounts Reboot Card MCC Reboot Card DSL Management System Source Validation for MCC Checklist for Setting Up Snmp FeaturesSetting Up Snmp Features MCC Snmp Community Strings and Authentication Failure Trap Management System Source Validation for DSL cards DSL Snmp Community Strings and Authentication Failure TrapEnable DSL Port Traps Enable/Disable Endpoint Security to 5446 RTU Scenario One Fully Operational System Download Code and ApplyDownload Code Scenario Two Download Only System Apply Download Navigation Keys Event Trap Class Comment Traps Traps Traps MCC card sends the following traps Enterprise-Specific Traps RTU Related TrapsStandard Traps RTU Overview RTU SetupAccessing 5446 RTU MIBs Network Management Systems IP Injection Tool IP Injection MIB OID MIB Browser Techniques Using the null entry IP and Device MIBs Supported RTU IP Configuration Table ± Mask Additional pdn-common MIBs Supported Message Meaning Static Route Warning Messages Glossary Gateway address EthernetEthernet Address Filter Packet MarginMCC Card Multiplex S1c RouterRouting Table S1b Numbers Index IN-2 IN-3