Allied Telesis AT-IX5-28GPX manual Planning a Stack

x510 Series Installation Guide for Virtual Chassis Stacking

Planning a Stack

Here are the guidelines to planning a stack:

ˆA stack can have up to four AT-IX5-28GPX switches.

ˆAny of the switches in the stack can be the master switch.

ˆSwitches connected with AT-StackXS/1.0 stacking cables should be installed in a standard 19-inch equipment rack and not more than one meter apart, the length of the stacking cable. The end switches cannot be more than one meter apart if you want to create the ring topology, shown in Figure 13 on page 46 and Figure 14 on page 47.

ˆYou may use the AT-StackOP/0.3 and AT-StackOP/9.0 transceivers to build stacks of switches that are up to 300 meters and 9 kilometers apart, respectively.

ˆThe wiring topology of the stack may be either linear or ring. Both topologies offer the same in terms of speed, but the ring topology adds wiring redundancy.

ˆYou can use combinations of AT-StackXS/1.0, AT-StackOP/0.3, and AT-StackOP/9.0 cables when the individual switches of the stack are at various distances from each other.

ˆThe switches do not need any additional software for stacking. However, they do need stacking transceivers.

ˆYou may not install a networking device, such as a media converter or Ethernet switch, between two fiber optic stacking transceivers.

ˆAll switches must have the same licenses of optional features. If you install an optional feature on one switch, you must install it on all switches before assembling the stack.

ˆThe AT-StackOP/9.0 transceiver has a maximum operating distance of 9 kilometers and requires 9/125 µm single-mode fiber optic cable. The operating specifications of the transceiver are listed in Table 17 on page 129.

ˆTable 8 on page 58 lists the maximum distances of the AT- StackOP/0.3 transceiver. The operating specifications of the transceiver are listed in Table 16 on page 128.

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