C
Troubleshooting
Contents
Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . C-3
Troubleshooting Approaches . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . C-3
Browser or Telnet Access Problems . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . C-5
Unusual Network Activity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . C-7
General Problems . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . C-7
Prioritization Problems . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . C-8
IGMP-Related Problems . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . C-8
LACP-Related Problems . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . C-9
Port-Based Access Control (802.1X)-Related Problems . . . . . . . . . . C-9
Radius-Related Problems . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . C-13
Spanning-Tree Protocol (STP) and Fast-Uplink Problems . . . . . . . C-14
SSH-Related Problems . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . C-15
Stacking-Related Problems . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . C-16
TACACS-Related Problems . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . C-16
TimeP, SNTP, or Gateway Problems . . . . . . . . . . . . . . . . . . . . . . . . . C-18
VLAN-Related Problems . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . C-18
Using Logging To Identify Problem Sources . . . . . . . . . . . . . . . . . . . . . . . C-21
Event Log Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . C-21
Menu: Entering and Navigating in the Event Log . . . . . . . . . . . C-23
CLI: . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . C-24
Debug and Syslog Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . C-25
Debug Types . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . C-26
Configuring the Switch To Send Debug Messages to One
or More SyslogD Servers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . C-27
Diagnostic Tools . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . C-32
Port Auto-Negotiation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . C-32
Ping and Link Tests . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . C-33
Web: Executing Ping or Link Tests . . . . . . . . . . . . . . . . . . . . . . . C-34
CLI: Ping or Link Tests . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . C-35
C-1
Summary of Contents for ProCurve 2610-24
Page 1: ...Management and Configuration Guide 2610 2610 PWR ProCurve Switches R 11 XX www procurve com ...
Page 2: ......
Page 18: ...xvi ...
Page 24: ...Product Documentation xxii ...
Page 54: ...Using the Menu Interface Where To Go From Here 3 16 ...
Page 94: ...Using the Web Browser Interface Status Reporting Features 5 24 ...
Page 132: ...Switch Memory and Configuration Multiple Configuration Files 6 38 ...
Page 148: ...Interface Access and System Information System Information 7 16 ...
Page 192: ...Time Protocols SNTP Messages in the Event Log 9 24 ...
Page 256: ...Power Over Ethernet PoE Operation PoE Event Log Messages 11 18 ...
Page 280: ...Port Trunking Port Status and Configuration 12 24 ...
Page 362: ...File Transfers Copying Diagnostic Data to a Remote Host PC or Unix Workstation A 24 ...
Page 438: ...Troubleshooting Restoring a Flash Image C 48 ...
Page 446: ...MAC Address Management Viewing the MAC Addresses of Connected Devices D 8 ...
Page 450: ...Daylight Savings Time on ProCurve Switches Configuring Daylight Savings Time E 4 ...
Page 462: ...12 Index ...
Page 463: ......