Brocade Fabric OS v7.1.2a Release Notes v1.0

Overview
Fabric OS (FOS) v7.1.2a is a patch release based on FOS v7.1.2. All hardware platforms and features
supported in FOS v7.1.2 are also supported in FOS v7.1.2a.
This release also contains fixes for many defects
including those from the FOS v7.1.2 maintenance releases.
Warning – Applicable only if upgrading from FOS v7.1.0:
Before upgrading the firmware to FOS v7.1.2a from FOS v7.1.0, you must run the
supportSave
command to
save any existing error log information. Once the switch is upgraded to FOS v7.1.2a, any previously existing
error log entries on the switch will be permanently lost - only new error log entries created while running FOS
v7.1.2a will be retained.
Note:
This warning is not applicable if the current firmware version is not FOS v7.1.0. For example, if the
upgrade is being performed from FOS v7.1.1x, FOS v7.1.0a, FOS v7.1.0b, FOS v7.1.0c, FOS v7.0.x to FOS
v7.1.2a, the existing error log entries will be preserved even after upgrading to FOS v7.1.2a. Please refer to
“FOS Migration Considerations” section of this document for additional considerations.
Resolution of Important Defects
Defect 484414: Under rare conditions, Access Gateway(AG) entries stay in management server (MS) database
even after removing them from the fabric.
Defect 490564: User may experience failures on BES encryption switch in diagnostic tests such as POST
Turboramtest.
Defect 492854: Following a planned device outage, many ports are displayed as “FC Disabled (Port
Throttled)”. Ports do not come online for a long time.
Defect 492704: "CRC error with good EOF" errors detected and may cause credit loss.
Defect 486638: The following issue is observed often and leads to disruptive FICON operations: "KSWD-1002
termination of process ficud".
Defect 495636: Switch panic during CP blade replacement.
New Features & Support
In addition to fixes for defects, there is new support in FOS v7.1.2 including:
• Support disabling the Decision Feedback Equalization (DFE) mode on selected ports for 8Gb FC ports
on Gen5 platforms.
o Supported through the new CLI command portCfgNonDfe only.
o Disabling DFE mode is only required to support attachment of select LTO tape devices to
Brocade Gen 5 platforms when the tape devices do not comply with FC standards for fill word
behavior and the fill word behavior cannot be changed on the tape device.
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