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LAN Connections
CDP AND TELNET
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Cisco Discovery Protocol
CDP is a proprietary utility that gives you a suhmmary
of directly connected switches, routers, and other
Cisco devices.
CDP discovers neighboring devices regardless of
which protocol suite they are running.
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Discovering Neighbors with CDP
- CDP runs on routers with Cisco IOS software
Release 10.3 or later and on Cisco switches and
hubs.
- Summary informationincludes:
Device identifiers
Address list
Port identifierCapabilities list
Platform
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Using CDP
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Using the show cdp
neighbors Command
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Using the show cdp entry Command
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Additional CDP Commands
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Creating a Network Map
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Using Telnet to Connect to Remote Devices
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Viewing Telnet Connections
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Suspending and Resuming
a Telnet Session
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Closing a Telnet Session
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Using the ping and trace Commands
Router###ping 10.1.1.10
Type escape sequence to abort.
Sending 5, 100-byte ICMP Echos to 10.1.1.10, timeout is 2 seconds:
!!!!!
Success rate is 100 percent (5/5), round-trip min/avg/max = 4/4/4 ms
Router#trace 192.168.101.101
Type escape sequence to abort.
Tracing the route to 192.168.101.101
1 p1r1 (192.168.1.49) 20 msec 16 msec 16 msec
2 p1r2 (192.168.1.18) 48 msec * 44 msec
Router#
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