Release Notes
Fabric OS v7.2.0a Release Notes v1.0 Page 29 of 93
If FOS v7.2 or later is factory installed (or net installed), Adaptive Networking features are always
available. This matches the behavior of the Brocade 6520 and all products shipping with prior
versions of FOS and with the Adaptive Networking license factory installed.
Ports will come up in AE mode by default
If the remote port supports QOS and is not explicitly disabled, the link will come up in QOS
mode. Otherwise, the link will come up in normal mode.
Access Gateway
Users who want to utilize Access Gateway’s Device-based mapping feature in the ESX environments
are encouraged to refer to the SAN TechNote GA-TN-276-00 for best implementation practices.
Please follow these instructions to access this technote:
Log in to http://my.brocade.com
Go to Documentation > Tech Notes.
Look for the Tech Note on Access Gateway Device-Based Mapping in VMware ESX Server.
Brocade HBA/Adapter Compatibility
Brocade HBA/Adapter should be using driver version 2.3.0.2 or later when attached to 16G ports on
Brocade switches.
D_Port
FOS v7.0.0a and later support the execution of D_Port tests concurrently on up to eight ports on the
switch.
Support of D_Port is extended to R_RDY flow control mode. The R_RDY mode is useful for active
DWDM links that do not work in VC_RDY or EXT_VC_RDY flow control modes.
A new sub-option “-dwdm” is added to “portcfgdport --enable” CLI to configure D_Port over active
DWDM links. The “-dwdm” option will not execute the optical loopback test while performing D_Port
tests as the active DWDM links do not provide necessary support to run optical loopback tests.
Edge Hold Time
Edge Hold Time (EHT) default settings for FOS v7.x have changed from those in some FOS v6.4.x
releases. The following table shows the Default EHT value based on different FOS release levels
originally installed at the factory:
Factory Installed Version of FOS
Default EHT Value
FOS v7.X
220 ms
FOS v6.4.3x
500 ms
FOS v6.4.2x
500 ms
FOS v6.4.1x
220 ms
FOS v6.4.0x
500 ms
Any version prior to FOS v6.4.0
500 ms