How to use a cisco router command view and router connection?

R1# show cdp neighbors Capability Codes: R - Router, T - Trans Bridge, B - Source Route Bridge S - Switch, H - Host, I - IGMP, r - Repeater Device ID Local Intrfce Holdtme Capability Platform Port ID R2 Eth 0/1 176 R S I 3640 Eth 0/2 R3 Fas 1/0 142 R S I 3560 Fas 0/0

see Cisco router on http://www.networksellers.com/