Cisco Systems C819HG4GVK9 Specifying a Synchronous Serial Interface, ISRs, Configuration Examples

Models: C819GUK9

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Legacy Protocol Transport

Contents

C H A P T E R

7

Environmental and Power Management

7-1

 

 

 

 

Cisco EnergyWise Support

7-2

 

 

 

 

 

 

 

Configuring the Serial Interface

 

 

 

 

 

C H A P T E R

8

8-1

 

 

 

 

 

 

Legacy Protocol Transport

8-2

 

 

 

 

 

 

 

Configuring Serial Interfaces

8-2

 

 

 

 

 

 

Information About Configuring Serial Interfaces

8-3

 

 

Cisco HDLC Encapsulation

8-3

 

 

 

 

 

 

PPP Encapsulation

8-3

 

 

 

 

 

 

 

 

Multilink PPP

8-4

 

 

 

 

 

 

 

 

Keepalive Timer

8-4

 

 

 

 

 

 

 

 

Frame Relay Encapsulation

8-5

 

 

 

 

 

 

LMI on Frame Relay Interfaces

8-6

 

 

 

 

How to Configure Serial Interfaces

8-6

 

 

 

 

 

Configuring a Synchronous Serial Interface

8-6

 

 

Specifying a Synchronous Serial Interface 8-7

 

 

Specifying Synchronous Serial Encapsulation 8-7

 

 

Configuring PPP 8-8

 

 

 

 

 

 

 

Configuring Half-Duplex and Bisync for Synchronous Serial Port Adapters on Cisco 819

 

 

ISRs 8-8

 

 

 

 

 

 

 

 

 

Configuring Compression of HDLC Data

8-9

 

 

Using the NRZI Line-Coding Format

8-9

 

 

Enabling the Internal Clock

8-10

 

 

 

 

Inverting the Transmit Clock Signal

8-10

 

 

Setting Transmit Delay

8-11

 

 

 

 

 

Configuring DTR Signal Pulsing

8-11

 

 

 

 

Ignoring DCD and Monitoring DSR as Line Up/Down Indicator 8-11

 

 

Specifying the Serial Network Interface Module Timing 8-12

 

 

Configuring Low-Speed Serial Interfaces

8-14

 

 

 

 

 

 

Understanding Half-Duplex DTE and DCE State Machines

8-14

 

 

 

 

 

Changing Between Synchronous and Asynchronous Modes

8-18

 

 

 

 

 

Configuration Examples 8-19

 

 

 

 

 

 

 

Interface Enablement Configuration: Examples 8-19

 

 

 

 

 

 

Low-Speed Serial Interface: Examples 8-20

 

 

 

 

 

 

Synchronous or Asynchronous Mode: Examples 8-20

 

 

 

 

 

 

Half-Duplex Timers: Example 8-20

 

 

 

 

 

 

Configuring Security Features 9-1

 

 

 

 

 

C H A P T E R 9

 

 

 

 

 

 

 

Authentication, Authorization, and Accounting

9-1

 

 

 

 

 

 

Cisco 819 Series Integrated Services Routers Software Configuration Guide

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

OL-23590-02

 

 

 

 

3

 

 

 

 

 

 

 

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Cisco Systems C819HG4GVK9 Specifying a Synchronous Serial Interface, Specifying Synchronous Serial Encapsulation, ISRs