This is a command line use in Cisco devices to show neighbors which is using Cisco Discovery Protocol (CDP).
CDP
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Show CDP Interface
SonicWALL CDP is a data backup and disaster recovery solution created by the company Dell. CDP stands for Continuous Data Protection. There is a model for businesses of all sizes.
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You don't want to allow adjacent devices to gain information about this router for security reasons.SolutionYou can disable CDP on a single interface by using the command no cdp enable interface configuration command: Router1#configure terminal Enter configuration commands, one per line. End with CNTL/Z. Router1(config)#cdp runRouter1(config)#interface FastEthernet0/0 Router1(config-if)#no cdp enableRouter1(config-if)#end Router1#And you can disable all CDP on the router with the global configuration command, no cdp run: Router1#configure terminal Enter configuration commands, one per line. End with CNTL/Z. Router1(config)#no cdp runRouter1(config)#end Router1#
They are mostly made up of ASCII strings THey may include information about CDP interfaces and neighbor entries
show cdp neighbors
packet switching
CDP
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