Licson Lee says to 電訊台 暫時睇得明嘅係 - peering interface 經 IGP 比返 core - 隻 Switch 啲 route 唔落 hardware - BGP 唔好 next hop self，要用返 peering interface IP 跟住就係 core 跟 IGP 指示打 MPLS label 送去隻 switch