packet switching
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They are mostly made up of ASCII strings THey may include information about CDP interfaces and neighbor entries
CDP is a Cisco proprietary protocol; it only works between Cisco devices. If CDP is enabled on a Cisco network device, it will regularly send frames with information about itself out its interfaces.CDP is a Cisco proprietary protocol; it only works between Cisco devices. If CDP is enabled on a Cisco network device, it will regularly send frames with information about itself out its interfaces.CDP is a Cisco proprietary protocol; it only works between Cisco devices. If CDP is enabled on a Cisco network device, it will regularly send frames with information about itself out its interfaces.CDP is a Cisco proprietary protocol; it only works between Cisco devices. If CDP is enabled on a Cisco network device, it will regularly send frames with information about itself out its interfaces.
• tests Layer 2 connectivity • enabled by default on each interface • provides information on directly connected devices that have CDP enabled
CDP
IP, AppleTalk, IPX
Device identifiers, A port identifier and Platform information.
CDP v1 includes information for:Device-ID (Hostname of the device or hardware serial number in ASCII)Address (The Layer 3 address of the interface that has sent the update)Port-ID (The port on which the CDP update has been sent)Capabilities (Describes the functional capabilities of the device)Version (A character string containing the software version [same as in show version])Platform (Hardware platform)CDPv2 offers further information options. Also note that when a device runs CDPv1 it will drop v2 frames.For more information see provided links.
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#
Show CDP Interface
Radiator Springs was based on a CDP (census-designated place) in Arizona known as Peach Springs. This CDP is located on the Hualapai Reservation. More information: http://en.wikipedia.org/wiki/Peach_Springs,_Arizona
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.