This document provides definitions of Serial Data Input (SDI) and Network Data Input (NDI) when seen in a debug, as in the Verify section of Configuring STUN Virtual Multipoint.
There are no specific requirements for this document.
This document is not restricted to specific software and hardware versions.
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SDI represents a packet that is sourced by a local serial tunneling (STUN) encapsulated interface and is destined for either serial, direct, or TCP encapsulation.
NDI represents a packet that has come across the network via serial, direct, or TCP encapsulation, and is destined to a STUN encapsulated interface.