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Cisco Compatible Micro Router Series

Compatible Systems Tech Notes: Debugging a Compatible Systems Router Log

Document ID: 17635



Contents

Introduction
Prerequisites
      Requirements
      Components Used
      Conventions
Contents - Debugging a Compatible Systems Router Log
      PPP Protocol Values
      PPP Negotiation Packets
      Option Abbreviations
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Introduction

This document contains information on debugging a compatible systems router log.

Prerequisites

Requirements

There are no specific requirements for this document.

Components Used

This document is not restricted to specific software and hardware versions.

The information in this document was created from the devices in a specific lab environment. All of the devices used in this document started with a cleared (default) configuration. If your network is live, make sure that you understand the potential impact of any command.

Conventions

Refer to Cisco Technical Tips Conventions for more information on document conventions.

Contents - Debugging a Compatible Systems Router Log

PPP Protocol Values

PPP Protocol Name

Value

CP Data

Internet Protocol

IPCP

8021

0021

DECnet Phase IV

DNCP

8027

0027

Appletalk

ATCP

8029

0029

Novell IPX

IPXCP

802B

002B

VJ Compressed TCP/IP

   

002D

VJ Uncompressed TCP/IP

   

002F

Bridging PDU

BCP

8031

0031

NetBIOS Frame Protocol

NBFCP

803F

003F

Compression

CCP

80FD

00FD

Link Control Protocol

LCP

C021

 

Password Authentication Protocol

PAP

C023

 

Link Quality Protocol

LQM

C025

 

Call-Back ControlProtocol

CBCP

C029

 

Challenge-Handshake Authentication Protocol

CHAP

C223

 

PPP Negotiation Packets

Logs

Name

Description

src()

Send-Configure-Request

Send our list of desired options.

sca()

Send-Configure-Ack

We accept the options in his conf-req.

scn()

Send-Configure-Nak

We did not like some of his objects and suggest alternatives.

scj()

Send-Configure-Reject

We do not want to negotiate the listed options.

str()

Send-Terminate-Request

We want to terminate the connection of this protocol.

sta()

Send-Terminate-Ack

We agree to terminate the connection of this protocol.

sdj()

Send-Code-Reject

We do not understand this code, do not send it anymore.

spj()

Send-Protocol-Reject

We do not understand this protocol, do not send it anymore.

ser()

Send-Echo-Request

Send a diagnostic packet.

sey()

Send-Echo-Reply

We reply to a diagnostic packet.

sdr()

Send-Discard-Request

Send a one way diagnostic packet.

sid()

Send-Identification

Information about our implementation—not implemented.

stm()

Send-Time-Remaining

Time remaining in this sessions—not implemented.

srr()

Send-Reset-Request

Used to tell the other side that there is a decompression failure. They reset their compressor. Valid with CCP only.

sra()

Send-Reset-Ack

Used to tell the other side that we reset our compressor and that compression can start again. Valid with CCP only.

rcr()

Receive-Config-Request

His list of desired options.

rca()

Receive-Configure-Ack

He accepts our list of options.

rcn()

Receive-Configure-Nak

He does not like some of our options and suggests alternatives.

rcj()

Receive-Config-Reject

He does not want to negotiate the listed options.

rtr()

Receive-Terminate-Req

He wants to terminate this protocol's connection.

rta()

Receive-Terminate-Ack

He agrees to terminate this protocol's connection.

rdj()

Receive-Code-Reject

He does not understand this protocol, we no longer send it.

rpj()

Receive-Protocol-Reject

He does not understand this protocol, we no longer send it.

rer()

Receive-Echo-Request

He sends a diagnostic packet.

rey()

Receive-Echo-Reply

He replies to a diagnostic packet.

rdr()

Receive-Discard-Request

Got a one-way diagnostic packet.

rid()

Receive-Identification

Information about his implementation—not implemented.

rtm()

Receive-Time-Remaining

Information about time remaining in this session—not implemented.

rrr()

Receive-Reset-Request

The other side tells us there is a decompression failure. We reset our compressor. Valid with CCP only.

rra()

Receive-Reset-Ack

The other side has reset its compressor and compression can start again. Valid with CCP only.

open()

administrative open

Allow this protocol to be negotiated.

close()

administrative close

Do not allow this protocol to be negotiated.

up()

 

This protocol is available for use and option negotiation can begin.

down()

 

This protocol is not available for use.

timeout()

 

A response to a PPP request is not received within 4 seconds. Retry up to 10 times, then fail.

tlu()

This-Layer-Up

The PPP negotiation for this protocol is successful. Traffic can now be carried.

tld()

This-Layer-Down

This protocol is unavailable and can no longer carry traffic.

tls()

This-Layer-Starting

PPP is ready to negotiate when the link comes up.

tlf()

This-Layer-Finished

PPP is done with this protocol.

irc()

init restart counter

Initialize the PPP retry counter to 10.

zrc()

zero restart counter

Force the PPP retry counter to zero.

Option Abbreviations

  • accm—Async Character Control Map

  • pfc—Protocol Field Compression

  • acfc—Address & Control Field Compression

  • mru—Maximum Receive Unit

  • vj—Van Jacobson TCP Header Compression

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Updated: May 03, 2004Document ID: 17635