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HP ProCurve Management And Configuration Guide

HP ProCurve
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C
Troubleshooting
Contents
Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . C-4
Troubleshooting Approaches . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . C-5
Browser or Telnet Access Problems . . . . . . . . . . . . . . . . . . . . . . . . . . . C-6
Unusual Network Activity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . C-8
General Problems . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . C-8
802.1Q Prioritization Problems . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . C-9
ACL Problems . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . C-9
IGMP-Related Problems . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . C-13
LACP-Related Problems . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . C-14
Mesh-Related Problems . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . C-14
Port-Based Access Control (802.1X)-Related Problems . . . . . . . . . C-14
QoS-Related Problems . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . C-17
Radius-Related Problems . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . C-17
Spanning-Tree Protocol (MSTP) and Fast-Uplink Problems . . . . . . C-18
SSH-Related Problems . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . C-19
TACACS-Related Problems . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . C-21
TimeP, SNTP, or Gateway Problems . . . . . . . . . . . . . . . . . . . . . . . . . C-23
VLAN-Related Problems . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . C-23
Fan Failure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . C-25
Using the Event Log To Identify Problem Sources . . . . . . . . . . . . . C-26
Menu: Entering and Navigating in the Event Log . . . . . . . . . . . . . . . C-28
CLI: Listing Events . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . C-29
Log Command . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . C-29
C-1

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HP ProCurve Specifications

General IconGeneral
BrandHP
ModelProCurve
CategorySwitch
LanguageEnglish

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