Brocade Fabric OS v6.4.3f Release Notes v1.0

Fabric OS v6.4.3f Release Notes v1.0 Page 33 of 149
 The portCfgFillWord command, applicable to 8G-capable ports, has been enhanced with FOS
v6.3.1 and v6.4 to provide two new configuration options (Modes 2 and 3). The available
settings include:
Mode Link Init/Fill Word
Mode 0 – IDLE/IDLE
Mode 1 – ARBF/ARBF
Mode 2 – IDLE/ARBF
Mode 3 – If ARBF/ARBF fails use IDLE/ARBF
Although this setting only affects devices logged in at 8G, changing the mode is disruptive
regardless of the speed the port is operating at. The setting is retained and applied any
time an 8G device logs in. Upgrades to FOS v6.3.1 or v6.4 from prior releases supporting
only modes 0 and 1 will not change the existing setting, but switches or ports reset to
factory defaults with FOS v6.3.1 or v6.4 will be configured to Mode 0 by default. The
default setting on new units may vary by vendor. Please use portcfgshow CLI to view the
current portcfgfillword status for that port.
Modes 2 and 3 are compliant with FC-FS-3 specifications (standards specify the
IDLE/ARBF behavior of Mode 2 which is used by Mode 3 if ARBF/ARBF fails after 3
attempts). For most environments, Brocade recommends using Mode 3, as it provides
more flexibility and compatibility with a wide range of devices. In the event that the
default setting or Mode 3 does not work with a particular device, contact your switch
vendor for further assistance.
 For the configure command, in FOS v6.4, the default value that displays for Maximum Logins per
switch is different than the value that displays in FOS v6.3.x. The default value has not changed; it
was displayed incorrectly in FOS v6.3.x, and is now corrected.
 The serdestuneMode command Changes or displays serdestunemode.
o SYNOPSIS
serdestunemode –set
serdestunemode –reset
serdestunemode –show
serdestunemode --help
o DESCRIPTION
Use this command to display or change the serdes tuning mode for FC8-16 blades on a
switch. When serdes tuning mode is enabled, new serdes values are allocated on certain
ports in FC8-16 blades in slot 2 and 7 and its peer ports, provided the core blade is CR4S-8.
Use this feature, if you notice CRC errors increasing on FC8-16 ports 0, 1, 4, 5 in slot 2 and
port 1 in slot 7. Serdes tuning mode set/reset can be changed on the fly. Enabling serdes
tuning mode will change the serdes values on certain ports in FC8-16 in slot 2 and 7 along
with its peer ports, provided the peer is CR4S-8. You will be prompted if FC8-16 blade is not
present in slot 2 or 7. Also you will be prompted if the core blade is not CR4S-8.
o NOTES
The execution of this command is subject to Virtual Fabric or Admin Domain restrictions that
may be in place. For details on command availability, refer to the Fabric OS Command
Reference, Appendix A. This command is only supported on the Brocade FC8-16 blades in a
DCX-4S chassis. Also these FC8-16 is expected to be present only in slot 2 or 7 or both along
with its peer blade CR4S-8.
o OPERANDS
This command has the following operands:
-set