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Remote mirroring enables you to monitor traffic on one switch through a device on another switch and send the monitored traffic to one or more destinations.
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Mirrored Traffic Monitoring from a VDS with Remote Mirroring
Remote mirroring requires that you configure a remote mirroring VLAN on your physical switches. If you cannot configure a remote mirroring VLAN, consider using encapsulated remote mirroring as an alternative.
In the steps below, the mirroring source and mirroring destination are the following:
  • Mirroring source: Virtual distributed switch that fowards mirrored traffic
  • Mirroring destination: Physical switch that receives mirrored traffic and that can route the traffic to Deep Discovery Inspector
Before you begin, verify that the uplink ports of the ESXi hosts that receive traffic are linked to the physical switch trunk port.

Procedure

  1. Configure the mirroring source to forward remote mirrored traffic to the destination.
    1. Log in to the vSphere Web Client.
    2. Select your virtual distributed switch in the left column and then click Configure.
    3. Click Port Mirroring.
      The Port mirroring screen appears.
      erspan-1.png
    4. Click New....
      The Add Port Mirroring Sessions window appears.
      rspan1.png
    5. Select Remote Mirroring Source.
    6. Click Next.
      The Edit properties screen appears.
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    7. In Name, type a session name.
    8. For Status, select Enabled.
    9. In Encapsulation VLAN ID, specify the VLAN ID.
      Note
      Note
      This is the remote mirroring VLAN ID configured on the VDS.
    10. Click Next.
      The Select sources screen appears.
    11. Click the plus icon (exsi-plus-icon.png) to add the source virtual machines that you want to monitor.
    12. Click Next.
      The Select destinations screen appears.
    13. Add uplink in Available uplinks to Selected uplinks.
    14. Click Next.
      The Ready to complete screen appears.
    15. Verify that the settings are correct and then click Finish.
  2. Configure the mirroring destination to forward encapsulated remote mirrored traffic to Deep Discovery Inspector.