Thursday, April 19, 2012


  • An RT is a BGP extended community.
    • that indicates which routes should be imported from MP-BGP into the VRF.
  • Exporting an RT means,
    • that the exported vpnv4 route receives an additional BGP extended community, this is the RT, when the route is redistributed from the vrf routing table into MP-bgp.
  • Importing an RT means,
    • received vpnv4 route from mp-bgp is checked for a matching extended community, this is the rt,.
  • If the result is a match, the prefix is put into the vrf routing table.
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