2ANSI/IEEE Std 802.1D,1998 Edition,Standard for local and metropolitan area networks: Media Access Control (MAC) Bridges[S], 1998.
3IEEE Std 802.1W-2001,Standard for local and metropolitan area networks: Media Access Control (MAC) Bridges-Amendment 2:Rapid Reconfiguration[S], 2001.
4IEEE Std 802.1S-2002, Standard for local and metropolitan area networks:Virtual Bridged Local Area Networks-Amendment3: Multiple Spanning Trees[S], 2002.
