This chapter covers the following topics that you need to master as a CCNP:
·
X.25 basics--From its emergence in the early 1970s to present day implementation
strategies, X.25 remains one of the most (if not the most) deployed technologies in the
internetworking world.
·
X.25 layered model--X.25 employs an implementation model similar to the OSI
model. This section discusses the layers of the X.25 model.
·
X.25 configuration options--For configuration options to be supported globally,
there are some configuration parameters that might need to be altered from their
default settings. This section details some of those settings.