"LLDP is nice for seeing Juniper devices"... LLDP is an open standard. It is great for seeing IP Phone configuration parameters also, such as Avaya for example. CDP on the otherhands, like FDP on Foundry/Brocade is aproprietary protocol with lesser capabilities than LLDP/LLDP-MED. One obscure feature I do like in CDP though is ODR (On Demand Routing) which is kind of a light weight routing protocol for hub and spoke networks that only requires CDP. Not sure many people know of that feature. Might be quite interesting to see Juniper enable something similar using LLDP perhaps.