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EtherHub 1500 System User’s Guide
5-4 Applications
Each Hub is Isolated
In this example, each hub in the stack is an independent
segment (isolated). Hubs 2 to 10 are not connected to any of
the 3 segments embedded in the FlexBus 1500 cabling; while
the EtherHub-16mi
+
(EtherHub 1500 Agent), though attached
to Segment 1, is functionally isolated.
EtherHub1500
AGENT
EtherHub1500 HUB
MANAGEMENT
CHANNEL
SEG. LINK 1
SEG. LINK 2
SEG. LINK 3
EtherHub1500 HUB
EtherHub1500 HUB
EtherHub1500 HUB
EtherHub1500 HUB
EtherHub1500 HUB
EtherHub1500 HUB
EtherHub1500 HUB
EtherHub1500 HUB
ID 1
ID 2
ID 3
ID 4
ID 5
ID 6
ID 7
ID 8
ID 9
ID 10
Se
g
ment 1
FlexBus 1500
Figure 5.4 Stacked Hubs Not Linked to a Segment
F
The EtherHub-16mi
+
is designed to be attached to one of the 3
segments. In this example, the EtherHub-16mi
+
is functionally
isolated though attached to a segment. Traffic in each segment is
restricted to that segment and cannot pass to another segment
without a device such as Accton’s Secure Backbone Hub (EtherHub-
SBH) or Smart Ethernet Switching Hub (SwitcHub-8s) to link them.