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Unusual Network Activity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-5
General Problems . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-5
Automatic Broadcast Control Problems . . . . . . . . . . . . . . . . . . . . . 8-6
IGMP-Related Problems . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-7
Switch Mesh Problems . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-7
STP-Related Problems . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-9
VLAN-Related Problems . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-10
Using the Event Log To Identify Problem Sources . . . . . . . . . . . . . . 8-12
To Change the Severity Level of Event Log Messages . . . . . . . . 8-15
Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-17
Ping and Link Tests . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-17
Executing Ping or Link Tests from the Web Browser Interface 8-18
Executing Ping or Link Tests from the Switch Console . . . . . . . 8-19
The Configuration File . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-21
Browsing the Configuration File from the Web Browser Interface
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-21
Browsing the Configuration File from the Switch Console . . . . 8-22
Using the Command Prompt . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-23
Restoring the Factory Default Configuration . . . . . . . . . . . . . . . . . . 8-24
A File Transfers
Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-1
Downloading an Operating System (OS) . . . . . . . . . . . . . . . . . . . . . . . A-1
Using TFTP To Download the OS File . . . . . . . . . . . . . . . . . . . . . . . . . A-2
Using the SNMP-Based HP Download Manager . . . . . . . . . . . . . . . . . A-4
Switch-to-Switch Download . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-4
Using Xmodem to Download the OS File . . . . . . . . . . . . . . . . . . . . . . . A-5
To Perform the OS Download: . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-5
Troubleshooting TFTP Downloads . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-6
Transferring Switch Configurations . . . . . . . . . . . . . . . . . . . . . . . . . . . A-8
Using Get and Put To Transfer a Configuration Between the Switch
and a Networked PC or Unix Workstation . . . . . . . . . . . . . . . . . . A-8
Using XGet and XPut To Transfer a Configuration Between the
Switch and a PC or Unix Workstation . . . . . . . . . . . . . . . . . . . . . . A-9