The Collaborative International Dictionary of English v.0.48:

Alan \A*lan"\ ([.a]*l[.a]n"), n. [OF. alan, alant; cf. Sp.
   alano.]
   A wolfhound. [Obs.] --Chaucer.
   [1913 Webster]

V.E.R.A. -- Virtual Entity of Relevant Acronyms (February 2016):

ALAN
       Audio Local Area Network (audio), "A-LAN"