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How to test NTP which is not syncing?
Hi masters, I am new to networking so please bear with me. I need to know on how to check from the switch side (S4048-ON) to verify the connectivity between my switch and the ntp server of one of my client. What command or tool I can use for this job. Troubleshooting done: 1. enable to ping the ntp server from the switch 2. ntp server not syncing on the switch: Clock is unsyncronized, stratum 16, no reference clock frequency is 0.000 ppm, stability is 0.000 ppm... Please advise.
- Hello Josh, I just add the ntp server on the switch using "ntp server IP address" command. The ntp server is not directly attached/connected to the switch rather it can see the switches network thus it is pingable from the switch. My question now is how can I test from the switch side if the UDP port 123 is open or if there are firewall blocking the communication between the two.
DELL-Josh Cr
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Posted December 18th, 2018 08:00
The switch has a ping command you can use. Page 125 https://downloads.dell.com/manuals/all-products/esuprt_ser_stor_net/esuprt_networking/esuprt_net_fxd_prt_swtchs/force10-s4048-on_administrator%20guide_en-us.pdf
DELL-Josh Cr
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Posted December 17th, 2018 07:00
Hi, What is the configuration for the NTP set as on the switch? Is the NTP server directly connected to this switch? Page 1673 debug ntp command may help. https://downloads.dell.com/manuals/all-products/esuprt_ser_stor_net/esuprt_networking/esuprt_net_fxd_prt_swtchs/force10-s4048-on_administrator%20guide_en-us.pdf