Specifications

SPECTRUM Software Release Notes Page 58

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 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.

Corrected AutoDiscovery Anomalies in

SPECTRUM 6.0.2

1 When AutoDiscovery is run on a network containing two SmartSwitch

routers connected with only a WAN link, the discovery does not create

the WAN_Link between the routers and could appear as LANs.