Example 2: Backup Link Using Alternative
Medium
In this topology, the primary link consists of a twisted-pair cable
between twisted-pair ports on two HP AdvanceStack hubs; the backup
link is from AUI port to AUI port on the two hubs. Depending on the
type of transceivers used, the backup link could use thin coax,
fiber-optic cable, or even twisted-pair cable. Note that any of the
network ports on these hubs can function as a backup to any other port.
Wiring Closet 1
Wiring Closet 2
Backup Link
(twisted-pair, thin coax,
or fiber-optic)
Primary Link
(twisted-pair cable
To another network
Backup Links
Backup Links
D-9
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