Adaptec ANA-62000 - Manual (Page 48)

4-4
DuraLAN Fast Ethernet NICs User’s Guide
Dual Hubs
In this example, each NIC is connected to a separate hub to provide
redundancy. If the hub port being used by the primary NIC fails, the
backup NIC becomes active and all network traffic is immediately
directed through it.
Figure 4-3. Two NICs connected to separate hubs
Primary
Backup
Ethernet Hub
Clients
Clients
Ethernet Hub
Server