Cisco Cisco IOS Software Release 12.0(17)S
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Cisco IOS Release 12.0(17)S
Frame Relay Extended Addressing
This document describes Extended Addressing for Frame Relay and includes the following sections:
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Feature Overview
Frame Relay Extended Addressing implements a 23-bit Data Link Connection Identifier (DLCI) on
Network-to-Network Interfaces (NNIs). This 23-bit DLCI supports values between 16 and 8388607.
Network-to-Network Interfaces (NNIs). This 23-bit DLCI supports values between 16 and 8388607.
Benefits
The standard 10-bit DLCI field only permits DLCI values between 16 and 1007. This is adequate for
User-to-Network Interfaces (UNIs), but does not meet some network’s NNI interface requirements.
User-to-Network Interfaces (UNIs), but does not meet some network’s NNI interface requirements.
The 23-bit DLCIs in Frame Relay Extended Addressing resolves this problem by supporting DLCI
values between 16 and 8388607.
values between 16 and 8388607.