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Network Planning
Remote Connections with Fiber Cable
Fiber optic technology allows for longer cabling than any other media type. A
100 Mbps multimode fiber (MMF) link can run up to 2 km, and a 100 Mbps
single-mode fiber (SMF) link can run as far as 20 km. A 1000BASE-LX SMF Gigabit
link can also connect to a site up to 5 km away. This allows the CheetahSwitch to
serve as a collapsed backbone, providing direct connectivity for a widespread LAN.
The 100BASE-FX SMF module can be used to interconnect remote Fast Ethernet
segments. While a Gigabit module can be used for a high-speed connection
between floors in the same building, or to connect to other buildings in a campus
setting. The figure below illustrates this switch connecting multiple segments with
fiber cable.
Server Farm
Remote Switch
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Figure 2-3. Collapsed Backbone Using Fiber Cable
2-4
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100BASE-FX SMF
(20 km)
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M1
CheetahSwitch Workgroup-3627
Link
COL
Power
Status
ACT
RPU
Link
FDX
SNMP
Status
Status
100M
Console
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M2
ES3627
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10/100 Mbps Segments
...
Headquarters
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Remote Switch
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Link
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CheetahSwitch Workgroup-3627
Link
COL
Power
Status
ACT
RPU
FDX
SNMP
Link
100M
Status
Status
Console
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M2
1000BASE-LX SMF
(5 kilometers)
o o
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M1
CheetahSwitch Workgroup-3627
COL
Power
ACT
RPU
FDX
SNMP
Status
100M
Console
M2
ES3627
o o
ES3627
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