Alaxala AX2500S, Troubleshooting Manual

Page: 69 / 136

3 Troubleshooting Functional Failures During Operation
43
No. Items to check and commands Action
5 Execute the
backup
operation
command. After the backup process
is complete, execute the
show
mc-file
operation command.
If the file specified for the
ip dhcp snooping database url mc
configuration command exists in addition to the file specified for
the
backup
operation command, the binding database has been
saved.
If the database has not been saved, the memory card might be
corrupted.
Go to No. 6.
6 Try to execute the
format mc
operation command.
When only the prompt without any message is displayed, memory
card formatting has terminated normally.
Take action as described in No. 5.
If
Can't gain access to MC.
is displayed, remove the memory
card and check the memory card and memory card slot for dust.
If there is dust, wipe it off with a dry cloth, and then insert the
memory card into the slot again.
After inserting the memory card, execute the
format mc
operation command again.
If
Can't execute.
is displayed, remove the memory card and
check the memory card and memory card slot for dust.
If there is dust, wipe it off with a dry cloth, and then insert the
memory card into the slot again.
After inserting the memory card, execute the
format mc
operation command again.
If the same message appears again, the memory card might have
been corrupted. Replace it with another memory card.
#
For details about save events and the wait-to-write time, see the Configuration Guide
Vol. 2 .
(3) When the binding database cannot be restored
If the binding database cannot be restored when the DHCP snooping functionality is used,
take action according to the tables below.
(a) Database cannot be restored from internal flash memory
Table 3-17 When the save location for the binding database is internal flash memory
No. Items to check and commands Action
1
Use the show ip dhcp snooping
binding
operation command to
check the time that the database
was saved.
If a hyphen (
-
) is displayed for
Agent URL
, go to No. 2.
If the time displayed for
Last succeeded time
is too old, go to
No. 3.
2 Use the
show running-config
operation command to check the
configuration.
If
ip dhcp snooping database url flash
is set, go to No. 3.
If
ip dhcp snooping database url flash
is not set, set the
ip dhcp snooping database url flash
configuration
command.