Wired Intelligent Edge

 View Only
last person joined: yesterday 

Bring performance and reliability to your network with the HPE Aruba Networking Core, Aggregation, and Access layer switches. Discuss the latest features and functionality of your switching devices, and find ways to improve security across your network to bring together a mobile-first solution
Expand all | Collapse all

NTP not Synchronizing - Aruba 8320 10.11.1030

This thread has been viewed 9 times
  • 1.  NTP not Synchronizing - Aruba 8320 10.11.1030

    EMPLOYEE
    Posted 9 days ago

    Hello. I have a problem synchronizing time on a 8320 VSX pair. The given NTP servers are working fine on Cisco switches in the customer environment. However when I try to enable NTP on the Aruba switches, it is not working. 

    ntp server x.x.x.x

    ntp enalble

    ntp vrf mgmt

    I can ping the IP addresses of the NTP servers. But for some reason it is not working. Any idea what could be the reason NTP is not working properly ? I also came across this point in the guide, "Configure an NTP server with the command ntp server. When configuring a time backward more than five minutes on the Aruba 8320, 8325, or 9300 Switch Series, a reboot is recommended to avoid unusual switch behavior." Why would we need to reboot for a simple configuration task such as NTP and what is the unusual switch behavior this point is referring to ?

    Thanks in advance.



  • 2.  RE: NTP not Synchronizing - Aruba 8320 10.11.1030

    MVP EXPERT
    Posted 9 days ago

    What VRF are u using for NTP and form which VSF you ping the NTP server?

    If using VRF MGTM you use the OOBM management interface. Is the VRF MGTM configured with a IP and did you ping from this VRF?

    Also configure the timezone and consider using ibrust, below a example.

    (config)# clock timezone europe/amsterdam
    (config)# ntp server 172.16.200.1 iburst vrf mgmt
    (config)# ntp enable
    (config)# write mem
    
    (config)# show ntp status
    

     



    ------------------------------
    Marcel Koedijk | MVP Expert 2023 | ACEP | ACMP | ACCP | ACDP | Ekahau ECSE | Not an HPE Employee | Opinions are my own
    ------------------------------



  • 3.  RE: NTP not Synchronizing - Aruba 8320 10.11.1030

    EMPLOYEE
    Posted 7 days ago

    Hello. Yes I am using mgmt interface and I can ping all the IP addresses from vrf mgmt. There is no problem with reachability. Below are the commands I used:

    clock timezone asia/qatar

    ntp server x.x.x.x

    ntp vrf mgmt

    ntp enable

    it was not synchronizing. I tried multiple IP addresses with the same behavior.