Maintenance Menu  168  
 
 
Debugging options 
Command: /maint/debug   
[Miscellaneous Debug Menu] 
      tbuf    - Show MP trace buffer 
      snap    - Show MP snap (or post-mortem) trace buffer 
      clrcfg  - Clear all flash configs 
 
The Miscellaneous Debug Menu displays trace buffer information about events that can be helpful in understanding 
switch operation. You can view the following information using the Debug Menu:  
•  Events traced by the management processor (MP)    
•  Events traced to a buffer area when a reset occurs 
If the switch resets for any reason, the management processor (MP) trace buffer is saved into the snap trace buffer 
area. The output from these commands can be interpreted by HP technical support.  
The following table describes the Miscellaneous Debug Menu options: 
Table 188  Miscellaneous Debug Menu options 
Command Usage 
tbuf  Displays the management processor trace buffer. Header information similar to the following is shown: 
MP trace buffer at 13:28:15 Fri May 25, 2002; mask: 0x2ffdf748 
The buffer information is displayed after the header. 
snap  Displays the management processor snap (or post-mortem) trace buffer. This buffer contains information 
traced at the time that a reset occurred. 
clrcfg  Deletes all flash configuration blocks. The next time the switch is rebooted, it returns to the factory default 
settings. 
 
ARP cache options 
Command: /maint/arp   
[Address Resolution Protocol Menu] 
      find    - Show a single ARP entry by IP address 
      port    - Show ARP entries on a single port 
      vlan    - Show ARP entries on a single VLAN 
      addr    - Show ARP entries for switch's interfaces 
      dump    - Show all ARP entries 
      clear   - Clear ARP cache       
 
The following table describes the Address Resolution Protocol Menu options:  
Table 189  Address Resolution Protocol Menu options 
Command Usage 
find <IP address>  Shows a single ARP entry by IP address. For example, 
192.4.17.35 
port <port number>  Shows ARP entries on a single port. 
vlan <1-4095>  Shows ARP entries on a single VLAN. 
addr  Shows the list of IP addresses that the switch will respond to 
for ARP requests.  
dump  Shows all ARP entries. 
clear  Clears the entire ARP list from switch memory.  
 
 
NOTE:  To display all ARP entries currently held in the switch, or a portion according to one of the options 
listed on the menu above (find, port, vlan, dump), see the “ARP information” section of the “Information Menu” 
chapter.