HP (Hewlett-Packard) 2848 Switch User Manual


 
Troubleshooting
Diagnostic Tools
Ensure that your Syslog server(s) will accept Debug messages. All
Syslog messages the switch generates carry the configured facility. All
Syslog messages resulting from debug operation carry a “debug” severity.
If you configure the switch to transmit debug messages to a SyslogD
server, ensure that the server’s Syslog application is configured to accept
the “debug” severity level. (The default configuration for some Syslog
applications ignores the “debug” severity level.)
A reboot temporarily suspends Syslog logging. After a reboot, the
switch suspends configured Syslog logging for 30 seconds.
Diagnostic Tools
Diagnostic Features
Feature Default Menu CLI Web
Port Autonegotiation n/a n/a n/a n/a
Ping Test n/a page C-37 page C-36
Link Test n/a page C-37 page C-36
Display Config File n/a page C-39 page C-39
Admin. and Troubleshooting n/a page C-42
Commands
Factory-Default Config page C-43
(Buttons)
page C-43
Port Status n/a pages B-9
and B-10
pages B-9
and B-10
pages B-9
and B-10
Port Auto-Negotiation
When a link LED does not light (indicating loss of link between two devices),
the most common reason is a failure of port auto-negotiation between the
connecting ports. If a link LED fails to light when you connect the switch to a
port on another device, do the following:
1. Ensure that the switch port and the port on the attached end-node are
both set to Auto mode.
C-34