Nortel 5000 Series Release Notes page 19

The following table describes possible image locations:
Table 3
Possible scenarios
Image
Local Agent Image
Local Diagnostic Image
Pre-5.0 Diagnostic Image
5.0 Diagnostic Image
6.0 Diagnostic Image
You can upgrade the Agent Image in your switches from an earlier release
image. The following table provides the Agent Image downgrade or upgrade
chart:
Table 4
Agent Image downgrade or upgrade chart
Local Agent Download Agent Image version
Image version
4.x
5.0 Yes
5.1 Yes
6.0
Yes
4.x Yes
Copyright © 2008., Nortel Networks
.
Note: If you have version 5.x software on your Ethernet Routing Switch
5000 Series switches with an Advanced License file installed, use the
following steps to upgrade your software.
Identify the corresponding Ethernet Routing Switch 5000 Series switch
Advanced License deposit in the License Bank and click Details.
Locate the License file name in the transaction and click Download to
download the Advanced License file and reinstall it on Ethernet Routing
Switch 5000 Series switch or switch stack to enable configuration of the
release 6.0 feature, PIM-SM (which has been added to the Advanced
License).
Location
Agent image in the flash memory of the unit.
Diagnostic image in the flash memory of the unit
Diagnostic image released before 5.0.
Diagnostic image released in 5.0
Diagnostic image released in 6.0
5.0
Yes
Yes
Yes
Yes
Nortel Ethernet Routing Switch 5000 Series
Release Notes — Release 6.0
NN47200-400 04.01 Standard
6.0 12 December 2008
Upgrading software 19
5.1 6.0
Yes—if Local Yes—if Local
Diagnostic Image Diagnostic Image
is 5.0 Diag Image. is 5.0 Diag version
or 6.0 Diag
version.
Yes Yes
Yes Yes
No No