IEEE 802The {IEEE} standards for {local area networks}. The {spanning tree algorithm} is defined in {IEEE 802.1} (under consideration), {Logical Link Control} (LLC, the upper portion of the {data link layer}) in {IEEE 802.2}, {Ethernet} in {IEEE 802.3}, {Token Bus} in IEEE 802.4 and IBM {Token Ring} in {IEEE 802.5}. The equivalent {ISO} {standard} is IS 8802. (1995-02-15)