LG-Ericsson iPECS ES-4526G, Installation Manual

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C
HAPTER
2
| Network Planning
Application Examples
– 40 –
ES-4550G / ES-4526G
Figure 12: Remote Connections with Fiber Cable
M
AKING
VLAN C
ONNECTIONS
These switches support 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.
These switches also support multiple spanning trees which allow VLAN groups to
maintain a more stable path between all VLAN members. This can reduce the
overall amount of protocol traffic crossing the network, and provide a shorter
reconfiguration time if any link in the spanning tree fails.
At Layer 3, VLANs are used to create an IP interface, where one or more ports
are assigned to the same IP segment. Traffic is automatically routed between
different IP segments on the same switch, without any need to configure routing
protocols.
... ...
Headquarters
1000BASE-LX SMF
(5 kilometers)
Remote Switch
1000BASE-SX MMF
(500 meters)
Remote Switch
Server Farm
...
...
Warehouse
Research & Development
1000BASE-LX SMF
(5 kilometers)
10/100/1000 Mbps Segments