The acronym MSS can be expanded in the manual page for pf.conf for
improved clarity.
/Lars
Index: pf.conf.5
===================================================================
RCS file: /cvs/src/share/man/man5/pf.conf.5,v
retrieving revision 1.443
diff -u -p -r1.443 pf.conf.5
--- pf.conf.5 30 May 2009 16:56:17 -0000 1.443
+++ pf.conf.5 12 Jan 2010 15:56:33 -0000
@@ -2161,7 +2161,7 @@ Parameters are specified enclosed in par
At least one of the following parameters must be specified:
.Bl -tag -width xxxx
.It Ar max-mss Aq Ar number
-Enforces a maximum MSS for matching TCP packets.
+Enforces a maximum segment size (MSS) for matching TCP packets.
.It Ar min-ttl Aq Ar number
Enforces a minimum TTL for matching IP packets.
.It Ar no-df
