C H A P T E R 3 Cable the module
8Plug the SC connectors on the fiber optic cables into the RX and TX sockets, and connect the other end of the cables to a device or group of switches with redundancy.
9Use Intel Device View to ensure that the mode settings for the two 1000SX Advanced Modules are the same.
10Check the LEDs on the 1000SX Advanced Modules to verify the links. For more information on LEDs, see Chapter 2.
Combine bandwidth on two modules
Introduction
Two modules installed on the same side of separate switches in a stack (for example, both modules in Slot A) can have their bandwidth com- bined (known as link aggregrated) to increase the bandwidth between this stack and another device or stack.
Note The two modules must have the same mode settings for link aggregation to work properly. Mode settings can be checked and changed using Intel Device View, see Chapter 4.
Prevent network loops
Link aggregation must be configured in Intel Device View to prevent a loop (see Chapter 4). When two modules are installed in a stack and connected to another single device or stack (without redundancy or link aggregation), then a loop may be created. Note that even with spanning tree enabled, a delay of 10 to 15 seconds may occur before the loop is discovered.
Note The 1000SX Advanced Module connected to port 3 on the Matrix Module must be configured as the anchor port.
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