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Solution 4:
Bridging and LAN Segmentation
Requirements
Subdivide a large Ethernet
network to cope with high traf-
fic levels that are adversely
affecting performance. Provide
safeguards against unautho-
rized network access.
Relocate a computer-aided
design (CAD) department
requiring two separate network
segments to the same floor as a
department running NetWare.
LAN traffic on all three net-
works must remain separate,
while still allowing for inter-
connections between the depart-
ments and the fiber backbone.
Provide a cost-effective LAN
extension with full segmenta-
tion capabilities. Connect a
small segment of users to the
existing network.
10
LinkBuilder Hub Configuration Guide
Large Ethernet Network
Highlights
3Com's chassis-based LinkBuilder
MSH solution provides the high
degree of segmentation required by
this organization. The LinkBuilder
MSH 4-Port Ethernet Bridge Module
bridges the LAN segments across the
hub's three backplanes, effectively
tripling the total network bandwidth
from 10 Mbps to 30 Mbps. The
bridge module supports Spanning
Tree Algorithm (STA), adding to
the resiliency of the hub.
The LinkBuilder MSH bridge
module has extensive filtering capa-
bilities, which help control network
traffic by isolating protocols and
ensuring that network segments are
only accessible by selected users.
3Com's patented LAN Security
4-Port Bridge
Module
Architecture (LSA) provides
advanced security features like Need
to Know, which ensures that only
authorized users receive sensitive
data, and Disconnect Unauthorized
Device, which can automatically
deny access to network intruders.
Traffic among users within the
same segment is filtered by the
bridge module, keeping unnecessary
traffic off the rest of the network.
With Transcend network management
software, you can configure the entire
network from a single hub view, even
moving modules from one segment to
another via software.
The ST Fiber Optic Transceiver
Interface module plugs into the bridge
module to provide connection with
the fiber optic building backbone.
The LinkBuilder MSH also provides
the same level of segmentation in a
coax, fiber, RJ-45, or mixed media
environment.
Fiber backbone
®
UTP Modules
Management
Module
3 Ethernet
backplanes
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