VMware SD-WAN Orchestrator monitor Edges keep in "No data available as per selected filter criteria" or "Live Mode" could not turn on in Links Tab.

Products

• VMware SD-WAN by VeloCloud

Issue/Introduction

In VMware SD-WAN Orchestrator, may meet:

No data available as per selected filter criteria.

Or "Live Mode" could not turn on in Links Tab

 

Environment

VMware SD-WAN by VeloCloud

Cause

Edge NTP couldn't sync with the NTP server.

 

Resolution

The Network Time Protocol (NTP) provides the mechanisms to synchronize time and coordinate time distribution in a large, diverse network. VMware recommends using NTP to synchronize the system clocks of Edges and other network devices.

As an Enterprise user, you can configure a time source for the SD-WAN Edge to set its own time accurately by configuring a set of upstream NTP Servers to get its time. The Edge attempts to set its time from a default set of public NTP Servers, but the time set is not reliable in most secure networks.

In Velo, default NTP servers are listed below,

server 0.pool.ntp.org

server 1.pool.ntp.org

server 2.pool.ntp.org

server 3.pool.ntp.org  

 In order to ensure that the time is set correctly on an Edge, you must activate the Private NTP Servers feature and then configure a set of NTP Servers in Profiles or Edge.

 

 

Note:

When the Edge transmits the traffic, the packet header will have the IP address of the selected source interface, whereas the packets can be sent through any interface based on the destination route