Today I encountered very strange error while trying to save
switch configuration:
Switch#wr
Building configuration...
% Warning: Saving this config
to nvram may corrupt any network management or security files stored at the
end of nvram.
Continue? [no]:
% Configuration buffer full,
can't add command: ntp clock-period 36028830
%Aborting Save. Compress the
config.[OK]
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This error indicate that there is no free space on the
NVRAM for saving the running-configuration into the startup configuration, as
you may recall the nonvolatile random-access memory (NVRAM) is an EEPROM chip
which holds the startup configuration file and retains content when router is
powered down or restarted.
In order to view the contents of the NVRAM just type:
Switch#dir nvram:
Directory of nvram:/
36
-rw-
20748
<no date> startup-config
37
----
6592
<no date> private-config
1
-rw-
657
<no date> IL-SW-UC-2H-#3801.cer
65536 bytes total (37120 bytes free)
|
As you can see there is only 37KB free on the NVRAM and my
configuration weight a little bit more:
Switch#sh running-config
Building configuration...
Current configuration : 38563 bytes
!
! Last configuration change
at 14:27:26 gmt Sun Jun 8 2014 by xxx
! NVRAM config last updated
at 14:28:46 gmt Sun Jun 8 2014 by xxx
!
version 12.2
service nagle
no service pad
service tcp-keepalives-in
<OUTPUT OMMITED>
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There is an option to use service compress-configuration which
will compress the startup configuration but it’s valid only for higher series
switches (such as the 45xx and 65xx).
On my 2960 switch it will give the following output:
Switch(config)#service
compress-config
Boot ROMs do not support
NVRAM compression.
Disabling service
compress-config.
Switch(config)#
|
So in order to solve this issue I had to remove some
configuration lines from the current configuration, after that I was able to
save the running-config to the startup:
Switch#wr
Building configuration...
[OK]
|
