| 主权项 |
1. A method for distributing flooding labels within a Multiprotocol Label Switching (MPLS) infrastructure supporting Border Gateway Protocol (BGP) Media Access Control (MAC) Virtual Private Networking (VPN), the method comprising:
generating, at a destination provider edge (PE) router, a generic flooding label (GFL) for each MAC-VPN Instance (MVI) that is advertising network layer reachability information (NLRI); generating, at the destination PE router, a Multi-Homing Flooding Label (MHFL) for each designated forwarder (DF) Ethernet Segment Identifier (ESI) that is advertising NLRI; and transmitting, toward one or more source PE routers, each generated GFL and MHFL using MAC-VPN Network Layer Reachability Information (NLRI) including a Route-Distinguisher (RD) and an ESI; generated GFLs being configured to cause each of said one or more source PE routers to replicate and forward toward the destination PE router broadcast/unknown unicast/multicast (BUM) traffic received via any attachment circuit (AC) according to a corresponding GFL transmitted by the destination PE router. |
