X.25 does not specify how the network operates internally--many X.25 network implementations used something very similar to X.25 or X.75 internally, but others used quite diffesion for two X.25 DTEs to be directly connected to each other with no network in between.
X.25 does not specify. The network operates internally--many X.25 network implementations used something very similar to X.25 or X.75 internally. Others used quite diffesion for two X.25 DTEs. This was to be directly connected to each other with no network in between.