Manuali utente per NEC IP8800/S2400

Sommario

• Troubleshooting Guide

  1
• Introduction

  3
• Contents

  11
• Safety Guide [IP8800/S6700]

  15
• Safety Guide [IP8800/S6600]

  27
• Safety Guide [IP8800/S6300]

  39
• Safety Guide [IP8800/S3600] [IP8800/S2400]

  51
• 1 Overview

  63
  • 1.1 Failure Analysis Overview

    64
  • 1.2 System and Partial Failure Analysis Overview

    65
    • 1.2.1 Failure Analysis for IP8800/S6700, IP8800/S6600, and IP8800/S6300

      65
    • 1.2.2 Failure Analysis for IP8800/S3600 and IP8800/S2400

      66
  • 1.3 Functional Failure Analysis Overview

    69
• 2 Troubleshooting System Failures

  73
  • 2.1 Troubleshooting for IP8800/S6700, IP8800/S6600, and IP8800/S6300

    74
    • 2.1.1 Troubleshooting Procedure on System Failures

      74
    • 2.1.2 Replacement Method of Optional Components

      76
  • 2.2 Troubleshooting for IP8800/S3600 and IP8800/ S2400

    77
    • 2.2.1 Troubleshooting Procedure on System Failures

      77
    • 2.2.2 Isolating Failures on External Power Unit

      79
    • 2.2.3 Replacement Method of System and Optional Components

      80
• 3 Troubleshooting Functional Failures in Operation

  81
  • 3.1 Problems on Login Password

    83
    • 3.1.1 Forgot the Login User Password

      83
    • 3.1.2 Forgot the System Administrator Password

      83
  • 3.2 Problems on MC

    84
    • 3.2.1 "MC:--------" is displayed by entering the show system command or the show mc command

      84
    • 3.2.2 "MC not found" is displayed when MC is accessed

      84
  • 3.3 Problems on Operation Terminal

    85
    • 3.3.1 Unable to Input/Display from the Console Correctly

      85
    • 3.3.2 Login from the Remote Operation Terminal Is Failed

      86
    • 3.3.3 Login Authentication Using RADIUS/TACACS+ Is Disabled

      87
    • 3.3.4 Command Authorization Using RADIUS/TACACS+ Is Disabled

      87
  • 3.4 Network Interface Communication Failure

    89
    • 3.4.1 Ethernet Port Cannot Be Connected

      89
    • 3.4.2 Communication Failure in Basic Switching Unit BSU/PSP

      91
    • 3.4.3 Actions against Troubles on 10BASE-T/100BASE-TX/1000BASE-T

      92
    • 3.4.4 Actions against Troubles on 1000BASE-X

      94
    • 3.4.5 Actions against Troubles on 10GBASE-R

      95
    • 3.4.6 Communication Failure on Using PoE

      97
    • 3.4.7 Communication Failure on Using Link Aggregation

      98
  • 3.5 Layer 2 Network Communication Failure

    100
    • 3.5.1 Layer 2 Communication by VLAN Is Disabled

      100
    • 3.5.2 Failures on Using Spanning Tree

      102
    • 3.5.3 Failures on Using Ring Protocol

      103
    • 3.5.4 Multicast Relay by IGMP snooping Is Disabled

      106
    • 3.5.5 Multicast Relay by MLD snooping Is Disabled

      109
  • 3.6 IPv4 Network Communication Failure

    112
    • 3.6.1 Communication Is Disabled or Is Disconnected

      112
    • 3.6.2 IP Addresses Cannot Be Assigned Using DHCP Function

      116
    • 3.6.3 DynamicDNS Cooperation in DHCP Function Is Disabled

      120
  • 3.7 IPv4 Unicast Routing Communication Failure

    123
    • 3.7.1 No RIP Routing Information Exists

      123
    • 3.7.2 No OSPF Routing Information Exists

      123
    • 3.7.3 No BGP4 Routing Information Exists

      124
    • 3.7.4 No Routing Information Exist [OP-NPAR]

      124
  • 3.8 IPv4 Multicast Routing Communication Failure

    125
    • 3.8.1 Communication on IPv4 PIM-SM Network Is Disabled

      125
    • 3.8.2 Multicast Data Is Double-relayed on IPv4 PIM-SM Network

      128
    • 3.8.3 Communication on IPv4 PIM-SSM Network Is Disabled

      129
    • 3.8.4 Multicast Data Is Double-relayed on IPv4 PIM-SSM Network

      131
    • 3.8.5 IPv4 Multicast Communication Failure In VRF [OP-NPAR]

      132
  • 3.9 IPv6 Network Communication Failure

    133
    • 3.9.1 Communication Is Disabled or Is Disconnected

      133
    • 3.9.2 IPv6 DHCP Troubleshooting

      135
  • 3.10 IPv6 Unicast Routing Communication Failure

    141
    • 3.10.1 No RIPng Routing Information Exists

      141
    • 3.10.2 No OSPFv3 Routing Information Exists

      141
    • 3.10.3 No BGP4+ Routing Information Exists

      142
  • 3.11 IPv6 Multicast Routing Communication Failure

    143
    • 3.11.1 Communication on IPv6 PIM-SM Network Is Disabled

      143
    • 3.11.2 Multicast Data Is Double-relayed on IPv6 PIM-SM Network

      146
    • 3.11.3 Communication on IPv6 PIM-SSM Network Is Disabled

      147
    • 3.11.4 Multicast Data Is Double-relayed on IPv6 PIM-SSM Network

      149
  • 3.12 Layer 2 Authentication Communication Failure

    151
    • 3.12.1 Communication Failure on Using IEEE 802.1X

      151
    • 3.12.2 Communication Failure on Using Web Authentication

      154
    • 3.12.3 Communication Failure on Using MAC Authentication

      159
    • 3.12.4 Communication Failure on Using Authentication VLAN [OP-VAA]

      161
  • 3.13 Communication Failure on High-reliability Function

    165
    • 3.13.1 GSRP Communication Failures

      165
    • 3.13.2 Communication with VRRP Configuration in IPv4 Network Is Disabled

      167
    • 3.13.3 Communication with VRRP Configuration in IPv6 Network Is Disabled

      169
  • 3.14 SNMP Communication Failure

    172
    • 3.14.1 MIBs Cannot Be Obtained from SNMP Manager

      172
    • 3.14.2 Traps Cannot Be Received by SNMP Manager

      172
  • 3.15 Troubleshooting of sFlow Statistics (Flow Statistics) Function

    174
    • 3.15.1 sFlow Packets Do Not Reach Collector

      174
    • 3.15.2 Flow Sample Does Not Reach Collector

      177
    • 3.15.3 Counter Sample Does Not Reach Collector

      177
  • 3.16 Communication Failures on Neighboring System Managing Function

    178
    • 3.16.1 Unable to Obtain Neighboring System Information via LLDP Function

      178
    • 3.16.2 Unable to Obtain Neighboring System Information via OADP Function

      178
  • 3.17 NTP Communication Failure

    180
    • 3.17.1 Time Synchronization by NTP Is Disabled

      180
  • 3.18 Communication Failure on IEEE802.3ah/UDLD Function

    181
    • 3.18.1 Port Becomes Inactive Due to IEEE802.3ah/UDLD Function

      181
  • 3.19 Problems on Redundant Configuration of Basic Control Unit (BCU)/Control and Switching Unit (CSU)/Management and Switching Unit (MSU) [IP8800/S6700] [IP8800/S6600] [IP8800/S6300]

    182
    • 3.19.1 Active System Switchover Is Disabled

      182
  • 3.20 Problems on Redundant Configuration of Basic Switching Unit (BSU) [IP8800/S6700]

    183
    • 3.20.1 Active BSU Switchover Is Disabled

      183
  • 3.21 Problems on Power Saving Feature

    185
    • 3.21.1 Schedule Is Disabled [IP8800/S6700] [IP8800/S6600]

      185
  • 3.22 Congestion Caused by Packets Processed Through CPU Is Not Recovered

    186
  • 3.23 Communication Failure Caused by Settings of Filtering/QoS

    188
    • 3.23.1 Checking Filtering/QoS Setting Information

      188
• 4 Troubleshooting Communication Failures Due to Resource Shortage [IP8800/S6700] [IP8800/S6600] [IP8800/S6300]

  191
  • 4.1 MAC Address Table Resource Shortage

    192
    • 4.1.1 Checking Resource Usage of MAC Address Table

      192
    • 4.1.2 Action to Be Taken When MAC Address Table Resource Shortage Occurs

      192
  • 4.2 When Resource Shortage of VLAN Identification Table Occurs

    195
    • 4.2.1 Checking VLAN Identification Table Resource Usage

      195
    • 4.2.2 Action to Be Taken When VLAN Identification Table Resource Shortage Occurs

      195
  • 4.3 When Resource Shortage Occurs in Shared Memory

    197
    • 4.3.1 Checking Resource Usage of Shared Memory

      197
    • 4.3.2 Action to Be Taken When Resource Shortage of Shared Memory Occurs

      197
• 5 Collecting Failure Information

  199
  • 5.1 Collecting Failure Information

    200
    • 5.1.1 Collecting Failure Information Using ftp Command from the Operation Terminal

      200
    • 5.1.2 Collecting Failure Information Using dump Command [IP8800/ S6700] [IP8800/S6600] [IP8800/S6300]

      202
  • 5.2 Transferring Files for Maintenance Information

    206
    • 5.2.1 Transferring Files Using ftp Command

      207
    • 5.2.2 Transferring Files Using zmodem Command [IP8800/S3600] [IP8800/S2400]

      210
    • 5.2.3 Transferring Maintenance Information Files Using show tech-support Command

      210
    • 5.2.4 Transferring Files Using ftp Command from the Operation Terminal

      212
  • 5.3 Writing to MC

    214
    • 5.3.1 Writing File to MC Using Operation Terminal

      214
• 6 Line Test

  215
  • 6.1 Testing Line

    216
    • 6.1.1 Ethernet Port

      216
• 7 Restarting the System

  221
  • 7.1 Restarting the System

    222
    • 7.1.1 Restarting the System

      222
• Appendix

  227
  • Appendix A Contents of show tech-support Command Display

    228
    • Appnedix A.1 Contents of show tech-support Command Display

      228
• Index

  249