Configuration Rules With Full Duplex - IBM 8271 Nways F12 User Manual

Configuration Rules
with Full Duplex
The key topology rules are:
Maximum UTP cable length is 100m (328ft) over category 5 cable.
A 412m (1352ft) fiber run is allowed for connecting
switch-to-switch, or endstation-to-switch, using half-duplex
100BASE-FX.
A total network span of 325m (1066ft) is allowed in single-repeater
topologies (one hub stack per wiring closet with a fiber run to the
collapsed backbone). For example, a 225m (738ft) fiber link from a
repeater to a router or switch, plus 100m (328ft) UTP run from a
repeater out to the endstations.
The Switch provides full duplex support for all its ports, including
Expansion Module ports. Full duplex allows packets to be transmitted
and received simultaneously and, in effect, doubles the potential
throughput of a link.
With full duplex, the Ethernet topology rules are the same, but the Fast
Ethernet rules are:
Maximum UTP cable length is 100m (328ft) over category 5 cable.
A 2km (6562ft) fiber run is allowed for connecting switch-to-switch,
or endstation-to-switch.

Configuration Rules with Full Duplex

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