HP Network Direr Software Products manual Discovery Section, Discovered, Following devices

144CHAPTER 4: DISCOVERING THE NETWORK

	Also, you should try to ensure that the IP addresses of the devices on your
	subnet are all within a small set of ranges, with few or no gaps between
	the devices on each range and then explicitly specify those ranges in the
	Network Discovery wizard. If 3Com Network Director has to ping lots of
	addresses that don’t exist, the discovery time can greatly increase as it is
	waiting for lots of timeouts.
	See “Using 3Com Network Director On A Multi-Site Network” on
	page 681 for more information on configuring the timeouts and retries
	appropriately within your network.
Discovery Report	The Discovery report contains a list of problems that were encountered
Errors and	during the discovery process. For the detecting devices part of discovery,
Warnings	these are grouped by subnet. For the topology part of the discovery
	process, the problems are grouped by multinet.
	Discovery Section
	The potential issues that may be detected and reported in the detecting
	devices phase of discovery are listed below, along with their potential
	causes:
	This subnet can contain more devices than 3Com Network Director
	currently allows during discovery, and will therefore not be
	discovered
	Subnets that can contain more than 65535 devices can take an extremely
	long time to discover. Therefore, 3Com Network Director ignores these
	subnets during all discovery operations. This message can only occur if
	you chose the second option on the first pane of the Network Discovery
	wizard, since this is where 3Com Network Director interrogates any
	routers it detects in order to determine the additional subnets to discover.
	If you still wish to discover this subnet then you should use the Specify
	Subnets option in the wizard and use restricted IP ranges.
	3Com Network Director failed to resolve the MAC addresses for
	the following devices
	3Com Network Director needs to determine the MAC addresses of
	devices for use in the topology process. For non-SNMP devices 3Com
	Network Director achieves this by reading the ARP cache of a router or, if
	the devices are on the local subnet, it reads the ARP cache of the PC
	running 3Com Network Director. This message may be logged if 3Com