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BX900 S2
Upgrade and Maintenance Manual
137
Connection blades
8.4.2
Connection blade stacking
Up to 8 Connection Blades GbE Switch/IBP 36/8+2 (SB11) can be operated
together to form a so-called stack. One of the connection blades takes on the
role of the master. This connection blade is used to administer all modules of
the stack. All modules of a stack act as one connection blade. In this way,
connection blade stacking offers a large number of ports with minimum
administrative effort.
The connections within a stack are established through the stacking ports of the
connection blades. The internal stacking ports to the midplane of the BX900 S2
system unit are each used to connect two connection blades that are installed
in the same fabric, i.e. in two adjacent slots. Connection blades in different
fabrics are connected through the external ports using CX4 cables.
Figure 39: CX4 cable
The stacking connections within a stack must form a circuit. Connection blade
stacks can be formed within a BX900 S2 system unit, across several system
units of a rack or across several system units in different racks.
The possible cabling scenarios are shown in the following diagrams, with the
connections identified as follows:
Internal connection within a fabric via the midplane
CX4 cable, 0.5 m
CX4 cable, 3 m