Capturing "Show Run-config" on a 5520

[pwwiddicombe]

I have captured the output of the "show run-config" on a number of 2504 and 5508 with no problems; but I have had issues with capture on 5520's.  I have a feeling it might be that they can REALLY pump out the configuration and statistics without pausing; and totally overwhelms my laptop ??.

I've tried both putty and TeraTerm's capture, and both fail - either reporting an incomplete configuration when loaded into WLCCA, or the entire session just drops on the laptop.

Is there another possible method to capture the required output, other than the "log capture" within a terminal emulator?  The only other thing I hadn't tried yet is to run over a "much slower" VPN session, which may effectively to the rate-limiting for me.  These dumps are 8-16 Meg, so hitting the spacebar page by page with paging enabled. is impractical  (these captures are 10-18 Meg in size).

[Aaron · Accepted solution]

Try the "transfer" method from the WLC CLI, to store the run-config output on a TFTP server.

Much faster.

[pwwiddicombe]

I'm missing something here.  How would you capture the output of the "show run-config" to a file, to be able to transfer to a TFTP server?

(or is this one of the reverse-unix-pipe type commands where you do something like

transfer upload 10.10.10.10 "show run-config"  )

[dave.clark]

Hello 

To copy your startup or running config , use this syntax.

 copy startup-config tftp:

Follow the prompts and you should be good to go.

If you need an example use this post.

https://supportforums.cisco.com/t5/lan-switching-and-routing/backup-and-restore-asa-5505-config/td-p/1859932

Regards

Dave C

[dave.clark]

Sorry i thought this was for a ASA 5520 :)

For a WLC 

try this 

(testwlc) >transfer upload mode tftp
(testwlc) >transfer upload datatype config
(testwlc) >transfer upload filename wlc-backup-2017-01-25
(testwlc) >transfer upload path .
(testwlc) >transfer upload serverip 192.168.1.1
(testwlc) >transfer upload start

[dave.clark · Accepted solution]

Also if you have access to GUI of the WLC you can do this from the GUI , under the management menu. Good Luck!

[dave.clark]

Also - someone has written a comprehensive guide here

https://mrncciew.com/2013/01/25/backup-restore-wlc-configs/

[dave.clark]

To set paging to off , in the CLI , under config , use this command 

config paging disable

 (Cisco Controller) config>paging disable

Regards

Dave C

[pwwiddicombe]

This works.  Copied from above, but for the run-config instead of config.

(testwlc) >transfer upload mode tftp
(testwlc) >transfer upload datatype run-config
(testwlc) >transfer upload filename wlc-backup-2017-01-25
(testwlc) >transfer upload path .
(testwlc) >transfer upload serverip 192.168.1.1
(testwlc) >transfer upload start

Much faster, and works for 5520's for which the CLI is blazingly fast compared to previous generations, for some things...

[Zain Khan]

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@pwwiddicombe wrote:

I have captured the output of the "show run-config" on a number of 2504 and 5508 with no problems; but I have had issues with capture on 5520's.  I have a feeling it might be that they can REALLY pump out the configuration and statistics without pausing; and totally overwhelms my laptop ??.

I've tried both putty and TeraTerm's capture, and both fail - either reporting an incomplete configuration when loaded into WLCCA, or the entire session just drops on the laptop.

Is there another possible method to capture the required output, other than the "log capture" within a terminal emulator?  The only other thing I hadn't tried yet is to run over a "much slower" VPN session, which may effectively to the rate-limiting for me.  These dumps are 8-16 Meg, so hitting the spacebar page by page with paging enabled. is impractical  (these captures are 10-18 Meg in size).

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Hi,

Use "Secure CRT"and log the session.