(Damn that was smarmy)
No discussion of the network layer would be complete without seeing examples of its implementation in the real world - we've provided pages showing such examples, in ARPANET and the Public Telephone Network. More examples may be added at a later date!
Finally, we in the Network layer group know of the difficulties arising from over-use of TLA's (Three Letter Acronym's). Over use of such acronyms is, we feel, an offense worthy of hanging (or at least a damn good spanking), as it leads to sentences like
"a dummy terminal can connect to the public telephone network using a PAD (whose functionality is defined by the X.3 standard) : the interface between the PAD and the terminal is defined by the X.28 standard and the interface between the PAD and the public network is then defined by the X.29."Now - to anyone who knows their salt, this is all fine, but to the vast majority of us (particularly those humans amongst us) this kind of talk can lead to Some Confusion. In an effort to straighten out this problem, we provide a dictionary page of well-used (and well-worn) acronyms -