User`s guide

8-2
Fast Ethernet Network Interface Cards
Single Hub or Switch on an Ethernet Segment
This configuration uses two NICs connected to a hub or switch on
an Ethernet segment. With this configuration, Duralink Failover
provides failover capability if one of the NICs fail.
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,
then the secondary NIC becomes active and all network traffic is
immediately directed through it.
Primary
Secondary
Server
Ethernet Switch or
Ethernet Hub
Clients
Primary
Secondary
Ethernet Hub
Clients
Clients
Ethernet Hub
Server