Cisco Packet Tracer 8.x tutorials

: Last Updated: 28 August 2023

What is Precision Time Protocol (PTP) ?

Precision Time Protocol (P2P) is a feature of Packet Tracer 8.2 available in IE2000 industrial switches.

This time synchronization protocol is defined in IEEE-1588 as Precision Clock Synchronization for Networked Measurements and Control Systems, and was developed to synchronize the clocks in networks devices that include distributed device clocks with various levels of precision and stability. Acurate time synchronization is vital for smart grid power automation applications such as virtual power generators and peak-hour billing, but also for network outage monitoring tools which require a high level of time accuracy and stability.

PTP configuration in Packet Tracer 8.2

Precision Time protocol can be simulated in Packet Tracer 8.2 using IE2000 switches. These switches features three PTP modes :

boundary
end-to-end transparent
forward.

Switch(config)#ptp mode ?
  boundary        Boundary Clock mode
  e2etransparent  End-to-End Transparent Clock mode
  forward         Forward packets without processing

1.Configure PTP using the following commands

Switch(config)#ptp mode boundary 
Switch(config)#interface fastEthernet 1/1
Switch(config-if)#ptp enable

2. Verify PTP global configuration using the show ptp clock command

 Switch#show ptp clock
 PTP CLOCK INFO
  PTP Device Type: Boundary clock
  PTP Device Profile: Default Profile
  Clock Identity: 0x00:50:0F:FF:FE:0A:9D:00
  Clock Domain: 0
  Number of PTP ports: 10
  Priority1: 128
  Priority2: 128
  Clock Quality:
        Class: 248
        Accuracy: Unknown
        Offset (log variance): N/A
  Offset From Master(ns): 0
  Mean Path Delay(ns): 0
  Steps Removed: 0
  Local clock time: 01:51:07 UTC mars 30 2011

3. Verify the fastethernet 1.1 configuration using the show ptp port IOS command to make sure PTP clock is forwarded on the network interface.

Switch#show ptp port 
 PTP PORT DATASET: FastEthernet1/1
  Port identity: clock identity: 0x00:50:0F:FF:FE:0A:9D:00
  Port identity: port number: 1
  PTP version: 2
  Port state: MASTER
  Delay request interval(log mean): 5
  Announce receipt time out: 3
  Announce interval(log mean): 1
  Sync interval(log mean): 0
  Delay Mechanism: End to End
  Peer delay request interval(log mean): 0
  Sync fault limit: 500000000

: Last Updated: 04 May 2023

Tutorial description

This tutorial is designed to help you to configure the voice over ip (voip) features available in Packet Tracer 8.1.1

It will show you the steps required to :

Configure Call Manager Express^TM on a 2811 router,
Use the various telephony devices
Setup dial peers
Connect Cisco^TM IP phones as well as analogue phone on the network.

Network diagram

VOIP tutorial network diagram

Note : Connect only IP Phone 1 at the beginning of the lab. IP Phone 2 must be disconnected.

Supported devices in Packet Tracer 8.1.1

Cisco Packet Tracer 8.1.1 supports three telephony devices :

Cisco 7960 IP Phone
Home VOIP device for analog phone connection to an IP network.
Cisco IP Communicator software on desktop or laptop PC

Cisco 7960 IP Phone

Cisco 7960 emulated IP phone in Packet Tracer - Front view

Introduction

Cisco Packet Tracer 8.2 is a powerful simulation software for CCNA and CCNP certification exam training. The video tutorials provided in this sections will help you to understand the basics of Packet Tracer 8.2 operations (tutorial 1) and how the simulation mode works to get a deep analysis of packet flow between network devices (tutorial 2).

Video tutorial 3 provides an advanced network configuration example using Packet Tracer 8.2 in a VOIP lab scenario.

Tutorial 1 - Basic network configuration

This first video demonstrates basic use of Packet Tracer 8.2. It will show you how to configure IP services on a Cisco ISR router and a workstation in the Cisco^TM Packet Tracer 8.2 network simulation software :

IP address configuration
Connection to a router using a crossover cable
Initial configuration of the router and the workstation

You can configure the workstation's global and interface settings on the Config tab.

The Desktop tab provides additional tools to configure workstation dial-up settings, IP settings, use a terminal window, open a host command line interface, open a web browser, configure Linksys^TM wireless settings, establish a VPN connection, generate network frames, and issue SNMP requests to network devices.

Tutorial 2 -Following packets

This second video tutorial shows how Packet Tracer can capture and display the content of packet as they go through the network (simulation mode). Features are similar to an advanced network tracking software and allows monitoring of frames as they go through and are processed by network devices. The network monitoring tools are available in Packet Tracer simulation mode.

Tutorial 3 - Configure Cisco Call Manager Express (CME)

This advanced Packet Tracer 8.2 video tutorial explains the different options available in Cisco Packet Tracer for Call Manager Express (CME) configuration on a Cisco 2811 ISR router.

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Packet Tracer 8.2 - Precision Time Protocol