This section gives usage examples for the new commands under PBB Epipe or IVPLS instances.
PBB IVPLS usage, example:
configure service vpls 100 ivpls
  sap 1/1/1:101
  pbb
      backbone-vpls 10 isid 100
      force-qtag-forwarding
PBB Epipe Usage, example:
configure service epipe 200
  sap 1/1/1:201
  pbb
      tunnel 10 backbone-dest-mac ab-bc-cd-ef-01-01 
        isid 200
      force-qtag-forwarding