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Chapter 1: Overview
15/S1 and 16/S2 Default Trunk Ports
22
The 15/S1 and 16/S2 ports can be used as regular networking ports or as
trunk ports for a stack of two switches, with the VCStack feature. The
switches of a VCStack function as a single virtual unit. They synchronize
their actions so that switching operations, like spanning tree protocols,
virtual LANs, and static port trunks, span across all the units and ports.
Two advantages of stacks are:
You can manage multiple units simultaneously, which can simplify
network management.
You have more flexibility with some of the features. For instance, a
static port trunk on a stand-alone switch has to consist of ports
from the same switch. In contrast, a static trunk on a stack can
consist of ports from different switches in the same stack.
In order to use ports 15/S1 and 16/S2 or any of the SFP/SFP+ slots for a
stack trunk, you have to use the following approved transceivers:
AT-StackXS/1.0 (1 meter) stacking transceiver and cable
AT-SP10TW1 (1 meter) Direct Attach Cable
AT-SP10TW3 (3 meter) Direct Attach Cable
Note
The XS916MX Switches do not support the AT-SP10TW7 Direct
Attach Cable as a stacking cable for the VCStack feature.
Note
Stacking cables are purchased separately.
A stacking transceiver has two SFP transceiver-style connectors and one
or three meters of cable. An example is shown in Figure 4.
Note
This guide explains how to install the devices as stand-alone units.
For instructions on how to install the switches in a stack with Virtual
Chassis Stacking (VCStack), refer to the XS900MX Series
Installation Guide for VCStack.
Figure 4. Stacking Transceiver
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