Summit X-Series, Problem with curent time

[Carsten_Volmer]

Hi, at all!

We have a problem with some switches x450 with the firmware 22.2.1.5 and higher. We configure the timezone with this syntax:

"configure timezone name MEZ 60 autodst name MESZ 60 begins every last sunday march ends every last sunday october"

But when I show the current time with "show switch", there is a difference about 20 or 30 minutes.

What's the problem and how can I solve it?

Thanks for all answers!

[aloeffle]

Hi.

please double check if your server is ntp or maybe sntp.

Here is my example ntp config which works fine:

4 EXOS Device als NTP-Client

-Demo.1 # enable ntp vr VR-Default

-Demo.1 # enable ntp vlan Default

-Demo.1 # configure ntp server add 10.0.184.254 vr VR-Default




4 Review der Synchronization

-Demo.1 # show ntp association 10.0.184.254 statistics

-Demo.1 # show ntp sys-info

-Demo.1 # show ntp association


hth
Alex

[Ronald_Dvorak]

Stratum 16 (=local clock) shows that the switch isn't synced to the NTP.

Do a "show vlan" - what VR is the switch IP using ? Is it VR-default or VR-mgmt ?
You'd try disable/enable NTP, are you able to ping the NTP from the switch ?

You'd also try another NTP to test, I use 83.218.160.135 for example on my lab switch.

[Carsten_Volmer]

Show ntp:

NTP : Enabled
Authentication : Disabled
Broadcast-Client : Disabled
VR : VR-Default

Show ntp association:

VR Name:VR-Default Remote:[Server IP] Reference ID:INIT St:16 Poll:1024 Reach:0 Delay: 0.00000 Offset: +0.00000 Disp: 3.99217

Show NTP sys-info:

System Peer : 0.0.0.0
System Peer Mode : Unspec
Leap Indicator : 11
Stratum : 16
Precision : -15
Root Distance : 0.00000 second
Root Dipersion : 333.958 second
Reference ID : [init]
Referene Time : 00000000.00000000 Thu, Feb 7 2036 7:28:16.000
System Flags : Monitor, NTP, Kernel, Stats
Jitter : 0.000000 second
Stability : 0.000 ppm
Broadcast Delay : 0.007996 second
Auth Delay : 0.000000 second

[Ronald_Dvorak]

could you post a screenshot of "show ntp", "show ntp ass" and "show ntp sys"

[Carsten_Volmer]

Hi, Alexander!

Thanks for your post.

We have an NTP Server. I have forgotten to mention ist. The syntax is:

Enable ntp vlan [name]

Configure ntp server add [Server IP] burst

Any another idea?

Carsten