Run Traceflow between virtual machines or interfaces where Distributed Load Balancer is enforced and the Distributed Load Balancer virtual IP address (VIP).

Use Traceflow for debugging purposes, when:
  • On a client guest VM, where a Distributed Load Balancer service is applied, if the communication is lost between the guest VMs to Distributed Load Balancer.
  • Or when guest VMs sending east-west traffic to another VM in the network drops.

Procedure

  1. With admin privileges, log in to NSX Manager.
  2. Navigate to the Plan & Troubleshoot tab, and click Traceflow.
  3. Enter source (for example, virtual machine where Distributed Load Balancer is enforced) and destination (Distributed Load Balancer VIP).
  4. Click Trace.

    Packet flow between virtual machines where Distributed Load Balancer is enforced.

  5. View results.

    • As DLB is not based on rules, if Distributed Load Balancer drops a packet, there are not rule IDs that show up in the traceflow output details.

    • If Distributed Load Balancer and DFW services are applied to a client virtual machine, a member of a group, first Distributed Load Balancer service is applied followed by DFW rules service.