Technical data

IronWare Software Release 07.2.02j for Brocade FastIron switches
Release Notes v 1.0 Page 40 of 79
still be functional but without PoE circuitry. Should you encounter such an issue, please contact Brocade
Technical Support for servicing.
Upgrading the software
Use the procedures in this section to upgrade the software.
Important notes about upgrading or downgrading the software
Note the following when upgrading to software release 07.2.02j:
• If you are performing an upgrade on a device that has an XFP optic that is not working properly and
the device is running a software release prior to 07.2.02j, you must remove the XFP optic from the
port after the upgrade, then re-insert it into the port.
• To upgrade an FWS device running software version 04.3.00 to version 07.2.02j, you must first
upgrade to release 04.3.02 before upgrading to 07.2.02j. For instructions on how to upgrade to
release 04.3.02, see the 04.3.02 release notes.
• To upgrade FGS standalone devices from software release 04.3.02 to version 07.2.02j with the
intent of forming a stack, first upgrade the units individually (in standalone mode) without
connecting the stacking cables. After upgrading all of the FGS units, you can then connect the
stacking cables.
• If FGS-STK or FLS-STK devices are upgraded from software release 04.3.00 non-stacking mode to
release 07.2.02j stacking mode, these devices may lose some port-related functions. If you are
upgrading from a pre-stacking release to a stacking release, refer to “Converting from a pre-stacking
image to a stacking image” in the FastIron Configuration Guide.
Note the following when downgrading from software release 07.2.02j:
• FCX-F devices require software release 06.1.00 or later.
• If software-based licensing is in effect on the device and the software is downgraded to pre-release
07.1.00, software-based licensing will not be supported.
• If FCX units in an IronStack are downgraded from software release 07.2.02j to release 06.0.00, in
some instances, the units may not be able to form a stack. This will occur if there is a mismatch of
BGP capability within the stack (i.e., some units support it and others do not). If you encounter this
problem, contact Brocade Technical Support for assistance.
• For FCX units, the 10G module name differs in software release 07.2.02j compared to releases
07.0.01b and 07.0.01c. Therefore, if an FCX is downgraded from software release 07.2.02j to release
07.0.01b or 07.0.01c, the stacking port configuration will be lost and the unit will not be able to join
the stack.
• If FGS-STK or FLS-STK units in an IronStack are downgraded from software release 07.2.02j to release
04.3.00, these units may lose some port-related functions since 04.3.00 does not support stacking.
The same issue applies when FGS or FLS (standalone) devices that use stack-unit ID 2 or greater are
downgraded from release 07.2.02j to 04.3.00. This will occur because the default non-stacked port
numbering scheme in release 4.3.00 and earlier is 0/x/x, versus the new non-stacked port
numbering scheme in 7.0 which is 1/x/x. After downgrading from release 7.0.01b to 4.3.00 or