(1) The term used to describe a network based on older, outdated
protocols.
For example, any network not based on the IP (TCP/IP) protocol — like
IPX or
SNA — is considered a legacy network.
(2) In wireless networks, the term is used to describe networks based on
older 802.11x standards that predate the 802.11n standard. The legacy standards
include 802.11a,
802.11b, and
802.11g.