CCNA 2 v3.1 Module 4 Learning About Other Devices

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CCNA 2 v3.1 Module 4 Learning About Other Devices


Cisco Discovery Protocol (CDP)

CDP is media and protocol independent, and runs on all Cisco equipment over the Subnetwork Access Protocol (SNAP).


Showing CDP Neighbor Entries


Implementation, Monitoring, and Maintenance of CDP


The show cdp interface Command


The show cdp neighbors Command


Creating a Network Map

• The show cdp neighbors [type number] [detail] command can be used to obtain the following:

Device ID — Address

Port ID — Capabilities

Version — Platform

IP network prefix

VTP management domain name (CDPv2 only)

Native VLAN (CDPv2 only)

Full/Half duplex (CDPv2)


Disabling CDP


Troubleshooting CDP


The show cdp traffic Command


Telnet


Telnet Operations


Establishing Telnet Connections

• To initiate a Telnet session any of the following alternatives can be used:

Denver>connect parisDenver>paris Denver>131.108.100.152Denver>telnet paris

• A hostname table or access to DNS for Telnet must be present for a name to work. Otherwise, the IP address of the remote router must be entered.

• Telnet can be used to determine if a remote router can be accessed.


Telnet Operations


Advanced Telnet Operation

Multiple Telnet sessions can be used and suspended with the Ctrl+Shift+6 then x sequence.


Testing with the ping Command


Testing with the traceroute Command


Troubleshooting IP Addressing Issues


Summary

CCNA 2 v3.1 Module 4 Learning About Other Devices

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