Nortel Power Branch Package 10 Release Notes page 21

Network Management
Note: Optivity NMS 9.0 provides partial support only for these switch
versions. For a list of Optivity modules or components that support the
BayStack product, see Release Notes for Optivity Network Management
System 9.0 for Solaris and Windows NT (Part number 205970-A). You can
obtain a copy of the Optivity 9.0 release notes at:
support.baynetworks.com/library/tpubs/nav/netman/nms.htm#OPTN90.
OIT Support for Multiple Software Versions
The Optivity Integration Toolkit (OIT) files are designed to support specific
versions of the BayStack 450 switch software. If your networking environment
requires you to support multiple BayStack software versions (for example,
BayStack software version V2.0 on some devices and BayStack software version
V4.0.0 on other devices), you must have both versions of the supporting OIT files
loaded onto your Network Management Station (NMS).
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