Nortel business policy switch 2000, User Manual

Page: 36 / 412

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Using the Business Policy Switch 2000 Version 2.0
Upgrading software in a Pure BPS 2000 stack
To download, or upgrade, software in a Pure BPS 2000 stack:
1
Download the operational software, or agent, image.
2 Download the diagnostics image.
However, if you are currently using software version 1.0, 1.0.1, or 1.1, you must
upgrade to software version 1.1.1 before upgrading to version 2.0.
Upgrading software in a Hybrid stack
The physical order of the units and the unit numbering in the Hybrid stack does
not affect the upgrading process at all. In addition, the cabling order regarding
upstream/downstream neighbors does not affect the process.
Before you attempt to download new software (or upgrade software) to a Hybrid
(mixed) stack, you
must ensure that the Interoperability Software Version
Numbers (ISVN) are identical. That is, the ISVN number for the BayStack 450
switch and BayStack 410 switch must have the same ISVN as the BPS 2000. If the
ISVNs are not the same, the stack does not operate. The ISVNs and the
accompanying software release are:
• ISVN 1
— BayStack 410 or Bay Stack 450—version 3.1
— BPS 2000—versions 1.0 and 1.0.1
• ISVN 2
— BayStack 410 or BayStack 450—versions 4.0 and 4.1
Note: Once you begin the upgrading process, do not interrupt the
process at all. Interrupting the downloading (or upgrading) process may
cause loss of connectivity.