×

Warning message

  • Cisco Support Forums is in Read Only mode while the site is being migrated.
  • Cisco Support Forums is in Read Only mode while the site is being migrated.

AP clock

Answered Question
Nov 28th, 2013
User Badges:

hi,

does anyone know how to configure clock for all APs that assocated ? and keep the clock

Correct Answer by Leo Laohoo about 3 years 8 months ago

no that's incorrect.

I can go to each LWAP to do

Yes, you can configure the AP individually but you CANNOT save this config.  Reboot the AP and it will revert back to GMT/UTC.  This behaviour is normal. 


The only way to see this in local time is to get a network monitoring tool like Prime Infrastructure.

  • 1
  • 2
  • 3
  • 4
  • 5
Overall Rating: 4.8 (5 ratings)
Loading.
Leo Laohoo Thu, 11/28/2013 - 16:41
User Badges:
  • Super Gold, 25000 points or more
  • Hall of Fame,

    The Hall of Fame designation is a lifetime achievement award based on significant overall achievements in the community. 

  • Cisco Designated VIP,

    2017 LAN, Wireless

does anyone know how to configure clock for all APs that assocated ? and keep the clock

Autonomous IOS use SNTP.  So if you want to configure clock, try "sntp serve 1.2.3.4".


You may also want to configure your timzeone too.

kuan yang Thu, 11/28/2013 - 16:45
User Badges:

i should've mentioned for all LWAPs

is there a way for wlc to configure all LWAP?

Leo Laohoo Thu, 11/28/2013 - 16:59
User Badges:
  • Super Gold, 25000 points or more
  • Hall of Fame,

    The Hall of Fame designation is a lifetime achievement award based on significant overall achievements in the community. 

  • Cisco Designated VIP,

    2017 LAN, Wireless

is there a way for wlc to configure all LWAP?

All the APs clocks are expressed in GMT/UTC.  You can't change the timezone. 


The WLC will control the aspect of the time on the AP.  The main thing you need to consider is the WLC must have a valid timesource.

kuan yang Thu, 11/28/2013 - 17:05
User Badges:

Hi Leo,

my problem is that, wlc is configured for say GMT9:30 and sync with ntp.

there are 200 APs in the network are default to UTC 0 time zone.


to make AP show correct time, i need to telnet to the AP and execute clock commands like :


MyAP0001#sh run | i clock

clock timezone CST 9 30

clock summer-time CDT recurring 1 Sun Oct 2:00 1 Sun Apr 2:00



i wonder if there is a way to configure all 200 APs together from WLC.


thank you

Leo Laohoo Thu, 11/28/2013 - 17:06
User Badges:
  • Super Gold, 25000 points or more
  • Hall of Fame,

    The Hall of Fame designation is a lifetime achievement award based on significant overall achievements in the community. 

  • Cisco Designated VIP,

    2017 LAN, Wireless

Nope. 


AP will always show the correct time because the AP gets all the information from the WLC.

there are 200 APs in the network are default to UTC 0 time zone.

This is to be expected.

kuan yang Thu, 11/28/2013 - 17:08
User Badges:

the fact is:

wlc is showing in GMT9:30 time and AP is showing default UTC0 time

Leo Laohoo Thu, 11/28/2013 - 17:21
User Badges:
  • Super Gold, 25000 points or more
  • Hall of Fame,

    The Hall of Fame designation is a lifetime achievement award based on significant overall achievements in the community. 

  • Cisco Designated VIP,

    2017 LAN, Wireless

wlc is showing in GMT9:30 time and AP is showing default UTC0 time

What timezone is the AP located?

Leo Laohoo Thu, 11/28/2013 - 17:31
User Badges:
  • Super Gold, 25000 points or more
  • Hall of Fame,

    The Hall of Fame designation is a lifetime achievement award based on significant overall achievements in the community. 

  • Cisco Designated VIP,

    2017 LAN, Wireless

GMT9:30

And what timezone is the WLC configured for?

kuan yang Thu, 11/28/2013 - 18:04
User Badges:

WLC is configured for GMT9:30

APs are left in default time configuration UTC0

and im wondering if i can do configuration from WLC to push out all APs to run on GMT9:30

Rasika Nayanajith Thu, 11/28/2013 - 18:13
User Badges:
  • Purple, 4500 points or more
  • Cisco Designated VIP,

    2017 Wireless

For lightweight APs you cannot set a timezone. So it is always shown in UTC time & that cannot be changed.



HTH

Rasika


**** Pls rate all useful responses ****

kuan yang Thu, 11/28/2013 - 18:16
User Badges:

no that's incorrect.

I can go to each LWAP to do , im running versoon 7.4.110.0


ap09#sh ver | i IOS

Cisco IOS Software, C1520 Software (C1520-K9W8-M), Version 15.2(2)JB2, RELEASE SOFTWARE (fc1)


ap09#conf t

Enter configuration commands, one per line.  End with CNTL/Z.

ap09(config)#clock timezone CST 9 30

ap09(config)#clock summer-time CDT recurring 1 Sun Oct 2:00 1 Sun Apr 2:00

ap09(config)#

ap09#sh clock

*12:45:59.403 CDT Fri Nov 29 2013

Rasika Nayanajith Thu, 11/28/2013 - 18:28
User Badges:
  • Purple, 4500 points or more
  • Cisco Designated VIP,

    2017 Wireless

But if you reboot this AP will your configuration remain ? I doubted,


You cannot save any local configurations you made on these AP since everythign is controlled by WLC


HTH

Rasika

kuan yang Thu, 11/28/2013 - 18:32
User Badges:

Hi Rasika,

so are you saying WLC cannot configure AP clocks?

if you notice, on AP CLI, i can save the clock to nvram. if clock is lost after power cycle, then this configuration is purely meaningless.

Rasika Nayanajith Thu, 11/28/2013 - 18:35
User Badges:
  • Purple, 4500 points or more
  • Cisco Designated VIP,

    2017 Wireless

Yes, you cannot set a timezone for APs via WLC. So AP will always shown in UTC time. So even if you change by locally configuring like above you configuration will be lost during a power cycle.


Are you having mesh image or are they purely local mode AP ?


HTH

Rasika

kuan yang Thu, 11/28/2013 - 18:39
User Badges:

it's mesh image on 1524SB.


AP09(config)#clock ?

  initialize   Initialize system clock on restart

  save         backup of clock with NVRAM



if you are right, above commands should be useless basically. i just like a confirmation if global AP clock configuration from WLC can or cannot be done.

Rasika Nayanajith Thu, 11/28/2013 - 18:46
User Badges:
  • Purple, 4500 points or more
  • Cisco Designated VIP,

    2017 Wireless

 i just like a confirmation if global AP clock configuration from WLC can or cannot be done.


Cannot be done is the answer to this.


HTH

Rasika

kuan yang Thu, 11/28/2013 - 18:48
User Badges:

thanks man,

it's just a little confusion, IOS let me config and save to nvram but wont keep the config after reboot.


i will test when i can reboot an AP.

Rasika Nayanajith Thu, 11/28/2013 - 19:38
User Badges:
  • Purple, 4500 points or more
  • Cisco Designated VIP,

    2017 Wireless

Yes, test it yourself & let us know.. but do not keep a hope it will work..


HTH

Rasika

Correct Answer
Leo Laohoo Thu, 11/28/2013 - 18:38
User Badges:
  • Super Gold, 25000 points or more
  • Hall of Fame,

    The Hall of Fame designation is a lifetime achievement award based on significant overall achievements in the community. 

  • Cisco Designated VIP,

    2017 LAN, Wireless

no that's incorrect.

I can go to each LWAP to do

Yes, you can configure the AP individually but you CANNOT save this config.  Reboot the AP and it will revert back to GMT/UTC.  This behaviour is normal. 


The only way to see this in local time is to get a network monitoring tool like Prime Infrastructure.

Sandeep Choudhary Thu, 11/28/2013 - 22:12
User Badges:
  • Purple, 4500 points or more
  • Cisco Designated VIP,

    2017 Wireless

HI Kuan,


example shows how to manually set the system clock to 7:10 a.m. on November 29, 2013:


AP# clock set 07:10:00 29 November 2013



Fore more : How to configure time and date on AP manually,please visit this document:


https://supportforums.cisco.com/docs/DOC-4842



Regards

Dont forget to rate helpful posts.

kuan yang Sun, 12/01/2013 - 15:46
User Badges:

Hi Sandeep and all,

i know how to do to individual AP, but it's time comsuming to do on 200 APs.

Maybe i should request this features in furthere software: to configure AP clock from WLC.


thanks everyone, i have conclusion of this discussion.


to those who wants to know the answer:

you cannot configure LWAP clock from WLC.

you can config AP clock at telnet to LWAP CLI individually.

config "clock saving interval 8" and "no clock initialize nvram" do not make any difference after reboot.

the clock will default to UTC after reboot.

Rasika Nayanajith Sun, 12/01/2013 - 15:59
User Badges:
  • Purple, 4500 points or more
  • Cisco Designated VIP,

    2017 Wireless

You have come to a right conclusion.


Pls mark this question as anwered and rate any useful responses. That will help others to find answer to a similar query.


Rasika

Actions

This Discussion