Nortel 450-24t 用户指南

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页码 400
Using the BayStack 450 10/100/1000 Series Switch
1-40
309978-D Rev 01
You must ensure that the Interoperability Software Version Numbers (ISVNs) 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 2000.
You can verify your switch software version and ISVN in the sysDescr field of the 
System Characteristics screen (see “System Characteristics” on page 3-16).
Also, for correct operation in a mixed stack configuration, the Business Policy 
Switch 2000 must be configured as the base unit.
You can connect up to eight switches to provide uninterrupted connectivity for up 
to 224 ports (see “Fail-Safe Stack Application” on page 1-38). The entire stack is 
manageable as a single unit. Installation instructions are provided with the 
BayStack 400-ST1 Cascade Module (see your Nortel Networks sales 
representative for ordering information).
If you need to upgrade your BayStack 450 switches, refer to the upgrade 
instructions provided in the Installing the BayStack 400-ST1 Cascade Module 
guide.
Note: 
If the ISVNs are different, only the units that have the same ISVN as the 
base unit will form a stack.
Note: 
If you do not designate the Business Policy Switch 2000 as the base 
unit, the mixed stack will not operate.
Note: 
BayStack 450 Switches that are configured with (optional)
 
BayStack 450-2M3/2S3 MDAs will not operate in a mixed stack configuration 
that includes one or more Business Policy Switch 2000es.
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.