Transcript CCNA 2 Module 4 Learning about Other Devices

CCNA 2 v3.1 Module 4
Learning About Other Devices
© 2004, Cisco Systems, Inc. All rights reserved.
1
Cisco Discovery Protocol (CDP)
CDP is media and protocol independent, and runs
on all Cisco equipment over the Subnetwork
Access Protocol (SNAP).
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2
Showing CDP Neighbor Entries
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3
Implementation, Monitoring, and
Maintenance of CDP
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4
The show cdp interface Command
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5
The show cdp neighbors Command
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6
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)
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7
Disabling CDP
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8
Troubleshooting CDP
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9
The show cdp traffic Command
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10
Telnet
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11
Telnet Operations
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12
Establishing Telnet Connections
• To initiate a Telnet session any of the following
alternatives can be used:
Denver>connect paris
Denver>paris
Denver>131.108.100.152
Denver>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.
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13
Telnet Operations
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14
Advanced Telnet Operation
Multiple Telnet sessions can be used and
suspended with the Ctrl+Shift+6 then x
sequence.
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15
Testing with the ping Command
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16
Testing with the traceroute
Command
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17
Troubleshooting IP Addressing Issues
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18
Summary
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