Wired Intelligent Edge (Campus Switching and Routing)

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Aruba 2920 NTP Sync Issues

Hi all,

Been having some issues trying to get the switch I'm setting up to sync to the windows NTP server. Have copied the input I have used below:


Essella-First-1-Aruba2920(config)# timesync ntp
Essella-First-1-Aruba2920(config)# ntp unicast
Essella-First-1-Aruba2920(config)# ntp server
Essella-First-1-Aruba2920(config)# ntp server iburst
Essella-First-1-Aruba2920(config)# ntp enable
Essella-First-1-Aruba2920(config)# show time
Wed Aug 15 10:14:20 2018 (manually set the time previously)

Essella-First-1-Aruba2920(config)# show ntp status

NTP Status Information

NTP Status : Enabled NTP Mode : Unicast
Synchronization Status : Not Synced Peer Dispersion : 0.00000 sec
Stratum Number : 16 Leap Direction : 0
Reference Assoc ID : 0 Clock Offset : 0.00000 sec
Reference ID : Root Delay : 0.00000 sec
Precision : 2**-18 Root Dispersion : 0.93408 sec
NTP Up Time : 0d 17h 17m Time Resolution : 2789 nsec
Drift : 0.00000 sec/sec

System Time : Wed Aug 15 10:14:41 2018
Reference Time : Mon Jan 1 00:00:00 1990


w32tm query peers.jpg



Essella-First-1-Aruba2920# show conf

Startup configuration: 10

; J9728A Configuration Editor; Created on release #WB.16.02.0012
; Ver #0e:01.b0.ee.34.5f.3c.29.eb.9f.fc.f3.ff.37.ef:73

hostname "Essella-First-1-Aruba2920"
module 1 type j9728a
console idle-timeout 600
banner motd


***************************************************************** "
password minimum-length 8
timesync ntp
sntp broadcast
sntp server priority 1 1
ntp unicast
ntp server iburst
ntp enable
no telnet-server
ip default-gateway
ip dns server-address priority 1
ip dns server-address priority 2
ip timep dhcp
snmp-server community "public" unrestricted
snmp-server location "Essella First (TB3/F)"
ip address dhcp-bootp
vlan 1
untagged 1-48
ip address
no tftp server
no autorun
no dhcp config-file-update
no dhcp image-file-update
password manager
password operator




Not sure if I have just missed something, was messing around with it for quiet some time yesterday.





Aruba Employee

Re: Aruba 2920 NTP Sync Issues



Here is the configuration which I have used in my lab that worked for me.


timesync ntp
ntp unicast
ntp server <NTP_Server_IP> iburst
ntp enable
time daylight-time-rule continental-us-and-canada
time timezone -480 (This is a Pacific Time Zone)

After applying the above commands then, enter the following 'show' commands for verification.



show ntp associations detail
show ntp status

Thank You,

Priyank Patel
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