Specifications

SPECTRUM Software Release Notes Page 56
AutoDiscovery
AutoDiscovery is SPECTRUM’s automatic topology mapping facility.
AutoDiscovery offers three Discovery Methods:
•IPListmaps a discovered device's IP address to a physical (MAC) address.When
this method is used, AutoDiscovery will attempt to contact and identify only those
devices at the IP addresses you specify when you create the configuration.
• Range uses ICMP echo requests (pings) to test each of the IP addresses within the
range or ranges you specify in the IP Address Ranges panel. When this method is
used, AutoDiscovery will attempt to contact and identify devices at each IP address
within the range(s) bounded by the pair(s) of low and high addresses you specify.
• Router examines the route tables in your network’s routers to establish the high-level
topology of your network, creating subnets and LANs. Router discovery configurations
require both a range of IP addresses (to establish the boundaries of the discovery) and
one or more IP addresses for routers that AutoDiscovery will use as “seed” routers.
The route information table and/or the routing neighbor tables of each seed router will
then be queried to determine the addresses of neighboring routers. If these addresses
are within the specified range, they too are queried, and the process is repeated until
all known neighbors within the range(s) have been queried.
Known AutoDiscovery Anomalies in
SPECTRUM 6.0.3
Problem 1: AutoDiscovery may fail to discover a Token Ring the first time
AutoDiscovery is run. It may find one ring while failing to find another ring.
Solution: Run Ring Discovery, and the missing ring will be found.
Problem 2: On Windows NT, if you run AutoDiscovery and then search for
IP an ATT1000 model, it is found as a pingable. If you destroy the device
and model it by IP, it is discovered as an ATT_SmartHub.