.TS
center,expand,box,tab(+);
c s|c
c|c|c.
T{
.na
IDP: initial domain part
T}+T{
.na
DSP: domain spedific part
T}
_+_+
T{
.na
AFI: authority and format identifier
T}+T{
.na
IDI: initial domain identifier
T}+
.TE
.ce
\fB Figure \n+(FG\fR: Format of OSI addresses