Document ID: 12303
Updated: Sep 09, 2005
Contents
Introduction
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.
Prerequisites
Requirements
There are no specific requirements for this document.
Components Used
This document is not restricted to specific software and hardware versions.
Conventions
For more information on document conventions, see the Cisco Technical Tips Conventions.
SDI
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
NDI represents a packet that has come across the network via serial, direct, or TCP encapsulation, and is destined to a STUN encapsulated interface.
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Refer to Cisco Technical Tips Conventions for information on conventions used in this document.