C
HAPTER
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| Network Planning
Application Examples
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REMOTE CONNECTIONS WITH FIBER CABLE
Fiber optic technology allows for longer cabling than any other media type. A
1000BASE-SX (MMF) link can connect to a site up to 550 meters away, a
1000BASE-LX (SMF) link up to 10 km, a 1000BASE-LH link up to 80 km, and a
100BASE-FX (SMF) link up to 20 km. This allows the switch to serve as a
collapsed backbone, providing direct connectivity for a widespread LAN.
The figure below illustrates the switch connecting multiple segments with fiber
cable.
Figure 10: Remote Connections with Fiber Cable
MAKING VLAN CONNECTIONS
This switch supports VLANs which can be used to organize any group of network
nodes into separate broadcast domains. VLANs confine broadcast traffic to the
originating group, and can eliminate broadcast storms in large networks. This
provides a more secure and cleaner network environment.
VLANs can be based on untagged port groups, or traffic can be explicitly tagged
to identify the VLAN group to which it belongs. Untagged VLANs can be used for
small networks attached to a single switch. However, tagged VLANs should be
used for larger networks, and all the VLANs assigned to the inter-switch links.
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