
C H A P T E R 3 Configure the module and connect the cables
Introduction
Prevent network loops
7Repeat steps 2 through 6 for the second 1000Base Module, ensuring that the cabling from this 1000Base Module goes to the other Matrix Module.
Primary | Secondary | 
Intel Express  | Intel Express  | 
550T Routing  | 550T Routing  | 
Switch  | Switch  | 
Intel Express  | 3  | 
550T Routing  | |
Switch  | |
  | 
Intel Express  | 4  | 
550T Routing  | |
Switch  | |
  | 
  | Intel Express  | 5  | 
  | 
  | 550T Routing  | 
  | |
Connects to  | Switch  | Connects to  | |
  | |||
Matrix Module in  | 
  | 
  | Matrix Module in  | 
primary switch  | Intel Express  | 6  | secondary switch  | 
  | 
  | ||
  | 550T Routing  | 
  | |
  | Switch  | 
  | 
  | 
  | 
  | 
  | 1740  | 
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.
9Check the LEDs on the 1000Base Modules to verify the links. For more information on LEDs, see Chapter 2
Link Aggregation with Two Modules
Two modules installed in a stack can be link aggregrated to increase bandwidth between this stack and another device or stack.
Link aggregation must be configured in Intel Device View to prevent a loop. When two modules are installed in a stack and connected to another single device or stack (without redundancy or link aggrega- tion), 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 dis- covered.
15