ProLiant BL p-Class GbE2 Interconnect Switch Application Guide

Troubleshooting tools 167
Other network troubleshooting techniques
Other network troubleshooting techniques include the following.
Console and Syslog messages
When a GbE2 Interconnect Switch experiences a problem, review the console and Syslog messages. The GbE2
Interconnect Switch displays these informative messages when state changes and system problems occur. Syslog
messages can be viewed by using the /info/sys/log command. For more information on interpreting syslog
messages, see the HP ProLiant BL p-Class GbE2 Interconnect Switch Command Reference Guide
.
Ping
To verify station-to-station connectivity across the network, execute the following command:
ping <host name> | <IP address> [ (number of tries)> [ msec delay ]]
The IP address is the hostname or IP address of the device. The number of tries (optional) is the number of
attempts (1-32). Msec delay (optional) is the number of milliseconds between attempts.
Trace route
To identify the route used for station-to-station connectivity across the network, execute the following command:
traceroute <host name> | <IP address> [<max-hops> [ msec delay ]]
The IP address is the hostname or IP address of the target station. Max-hops (optional) is the maximum distance to
trace (1-16 devices). Msec delay (optional) is the number of milliseconds to wait for the response.
Statistics and state information
The GbE2 Interconnect Switch keeps track of a large number of statistics and many of these are error condition
counters. The statistics and state information can be very useful when troubleshooting a LAN or Real Server
problem. For more information about available statistics, see one of the following:
• "Viewing statistics" chapter of the HP ProLiant BL p-Class GbE2 Interconnect Switch Browser-based Interface
Reference Guide, or
• "Statistics Menu" chapter of the HP ProLiant BL p-Class GbE2 Interconnect Switch Command Reference
Guide
• "Statistics Commands" chapter of the HP ProLiant BL p-Class GbE2 Interconnect Switch ISCLI Reference
Guide
Customer support tools
The following diagnostics tools are not user-configurable and should be performed through HP technical support.
• Offline Diagnostics—this tool is used for troubleshooting suspected GbE2 Interconnect Switch hardware
issues. These tests verify that the selected hardware is performing within expected engineering
specifications.
• Software Panics—if a fatal software condition is found during runtime, the GbE2 Interconnect Switch will
capture the current hardware and software state information into a panic dump. This dump file can be
analyzed post-mortem to determine the cause of the problem.
• Stack Trace—if a fatal software condition occurs, the GbE2 Interconnect Switch dumps stack trace data to
the console. If you have a console attached to the switch, capture the console dump, and forward it to HP
technical support.