Cisco discovery Protocol (CDP)

CDP

Router#show cdp

Global CDP information:

Sending CDP packets every 60 seconds

Sending a holdtime value of 180 seconds

Sending CDPv2 advertisements is enabled

Router#show cdp ?

entry                Information for specific neighbor entry

interface         CDP interface status and configuration

neighbors        CDP neighbor entries

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Router#show cdp neighbors

Capability Codes: R - Router, T - Trans Bridge, B - Source Route Bridge

S - Switch, H - Host, I - IGMP, r - Repeater, P - Phone

Device ID         Local Intrfce                Holdtme          Capability        Platform          Port ID

Switch Fas 0/0                        138                    S                     2960               Fas 0/1