Allied Telesis X610-24SPS/X User Manual

Page of 128
Chapter 1: Overview
54
VCStack Stacking Module
A Virtual Chassis Stack (VCStack) is two or more separate Allied Telesis 
switches that are configured to operate as a single logical switch. The 
component switches are connected via VCStack stacking modules 
installed in each switch. 
Two VCStack stacking modules are available:
The AT-StackXG has two full-duplex, 12 Gbps stacking ports, shown in 
Figure 30. 
The AT-x6EM/XS2 has two 10 Gbps SFP+ stacking slots, shown in 
Figure 31. Note that the port speed of the AT-x6EM/XS2 is fixed at 
 
10 Gbps.
AT-StackXG
STACK PORT 1
STACK PORT 2
AT-x6EM/XS2
1
2
L/A
L/A
POWER
SFP+
SFP+
CLASS 1
LASER PRODUCT
10G LINK
ACT
1000 LINK
ACT
L/A
Figure 30. AT-StackXG Stacking Module
Figure 31. AT-x6EM/XS2 Stacking Module
Refer to “VCStack Stacking Module Installation” on page 88 for the 
AT-StackXG and AT-x6EM/XS2 stacking module installation instructions. 
For more information on stacking see Chapter 2, “Virtual Chassis 
Stacking” on page 59
 and refer to the Allied Telesis Inc. website 
(www.alliedtelesis.com) for the Overview of Virtual Chassis Stacking 
(VCS) 
and the Virtual Chassis Stacking section of the AlliedWare Plus
 
Operating System Software Reference Guide.