Instruction manual

2
As shown in Figure 1 on page 1, in a mixed stack
configuration, the BayStack 450 and 410-24T switches
must use compatible but device-specific software versions
to operate with the Business Policy Switch.
Yo u must ensure that the Interoperability Software Version
Numbers (ISVN) are identical. That is, the ISVN for the
BayStack 450 and 410-24T must be the same as the ISVN
for the Business Policy Switch. If the numbers are
different, only the units that have the same ISVN as the
base unit will form a stack. You can verify your switch
software version and ISVN in the sysDescr field of the
System Characteristics screen (see your switch’s User
Guide for more information).
Also, for correct operation in a mixed stack configuration,
the Business Policy Switch must be configured as the base
unit. If you do not designate the Business Policy Switch as
the base unit, the mixed stack will not operate.
If you need to upgrade your switches, refer to “Upgrading
the Switch Firmware” on page 39 of this guide.
Note:
The
BayStack 400-ST1 Cascade Module
will not operate with BayStack 450 switches that
are configured with BayStack 450 software
versions earlier than version V1.1.0. You must
upgrade the switches to BayStack 450 software
version V1.1.0 (or later) before you install the
BayStack 400-ST1 Cascade Modules.