Debugging Options; Arp Cache Maintenance - NEC N8406-023 Command Reference Manual

Debugging options

The Miscellaneous Debug commands display trace buffer information about events that can be helpful in
understanding switch operation. You can view the following information using Debug commands:
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 NEC technical support.
The following table describes the Miscellaneous Debug commands:
Table 182 Miscellaneous Debug commands
Command
debug mp-trace
debug mp-snap
clear flash-config

ARP cache maintenance

The following table describes the Address Resolution Protocol commands:
Table 183 ARP Maintenance commands
Command
show ip arp find <IP address>
show ip arp interface <port number>
show ip arp vlan <1-4095>
show ip arp reply
show ip arp
clear ip arp-cache
NOTE: To display all ARP entries currently held in the switch, or a portion according to one of the commands
listed above, see the ―ARP information‖ section of the ―Information Commands‖ chapter.
Usage
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.
Command mode: All except User EXEC
Displays the management processor snap (or post-mortem) trace buffer. This buffer
contains information traced at the time that a reset occurred.
Command mode: All except User EXEC
Deletes all flash configuration blocks. The next time the switch is rebooted, it returns to the
factory default settings.
Command mode: All except User EXEC
N8406-023 1Gb Intelligent L3 Switch Command Reference Guide (ISCLI) 153
Usage
Shows a single ARP entry by IP address.
Command mode: All except User EXEC
Shows ARP entries on a single port.
Command mode: All except User EXEC
Shows ARP entries on a single VLAN.
Command mode: All except User EXEC
Shows the list of IP addresses that the switch will respond
to for ARP requests.
Command mode: All except User EXEC
Shows all ARP entries.
Command mode: All except User EXEC
Clears the entire ARP list from switch memory.
Command mode: All except User EXEC