А что теперь и HP ProСurve Switch'и умеют cisco discovery protocol поддерживать?
Cisco#sh cdp ne
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
HP ProCurve Switch 2848(000e7f-008980)
                 Fas 0              119          S        HP 2848   45

Cisco#sh cdp ne d
-------------------------
Device ID: HP ProCurve Switch 2848(000e7f-008980)
Entry address(es):
  IP address: 127.0.0.1
Platform: HP 2848,  Capabilities: Switch
Interface: FastEthernet0,  Port ID (outgoing port): 45
Holdtime : 174 sec

Version :
Revision I.07.31 /sw/code/build/mako(m03)

advertisement version: 1

• CDP, sh_, 13:01 , 29-Апр-05, (1)