Specifications

SPECTRUM Software Release Notice Page 38
AutoDiscovery
AutoDiscovery is SPECTRUM’s automatic topology mapping facility.
AutoDiscovery offers three Discovery Methods:
• IP List maps 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 the Internet Control Message Protocol (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 Local Area Networks (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.
Corrected AutoDiscovery Anomalies in
SPECTRUM 6.5
1 You no longer receive an error message when you model a router with
large route tables which is not responding to SNMP.