Before You Configure Cisco HDLC
Before you configure a Cisco HDLC interface, you need to configure the physical line interface over which Cisco HDLC traffic flows, described in the following chapters:
- ERX Physical Layer Configuration Guide, Chapter 1, Configuring Channelized T3 Interfaces
- ERX Physical Layer Configuration Guide, Chapter 2, Configuring T3 and E3 Interfaces
- ERX Physical Layer Configuration Guide, Chapter 3, Configuring CT1 and CE1 Interfaces
The procedures described in this chapter assume that a physical line interface has been configured.