Configuring a physical x.25 port, Configuring a physical x.25 port -2, X.25 port screen 1 -2 – Cabletron Systems 1800 User Manual
Page 94: X.25 port(s), After making any changes, be sure to press, At the port configuration menu (or, Item b) is, Item l will be, And item m will be, Pressing
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