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311523-C Rev 00
1
Introduction
These release notes contain important information about software version V4.0.0
for the BayStack
*
450 Switch that may not be included in the related user guide
Using the BayStack 450 10/100/1000 Series Switch
(Part number
309978-D Rev 00). The information in these release notes supersedes the
applicable information in the user guide.
These release notes contain the following sections:
• “Upgrading the BayStack 450 Firmware” (page 1)
• “The Upgrade Process” (page 2)
• “Creating a Mixed Stack” (page 4)
• “Accessing the Software Images” (page 5)
• “Upgrade Restrictions” (page 5)
• “Nortel Networks Online Documentation” (page 6)
• “New Features” (page 7)
•“Bug Fixes” (page7)
• “Known Restrictions” (page 8)
• “Known Problems” (page 13)
• “Connecting to Accelar Gigabit Ports” (page 14)
• “1000BASE-LX Connectors” (page 15)
• “Network Management” (page 16)
Upgrading the BayStack 450 Firmware
The BayStack 450 firmware provides a code load facility that allows you to
upgrade the software image over any switch port, including any MDA ports.
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 all units
with BayStack 450 software version
V1.1.0 (or later)
before
installing the BayStack 400-ST1 Cascade Modules.
To access the software images, see “Accessing the Software Images” on page 5.