Brocade Communications Systems Brocade 6510 Release Note page 27

v6.4.1_fcoe/v6.4.1_fcoe1/v7.0.0 or later, the following CEE map ―default‖ will be created
automatically:
cee-map default
priority-group-table 1 weight 40 pfc
priority-group-table 2 weight 60
priority-table 2 2 2 1 2 2 2 2
When upgrading from FOS v6.3.x or v6.4.x to FOS v6.4.1_fcoe/v6.4.1_fcoe1/v7.0.0 or later, the CEE
start up configuration dcf.conf file will be incompatible with the FCoE provisioning changes
implemented in v6.4.1_fcoe and later releases. Users can save the dcf.conf file as a backup and
apply it once the firmware upgrade is completed to get the DCX/DCX-4S to the same startup
configuration as in the older release.
It is recommended that Spanning Tree Protocol and its variants be disabled on CEE interfaces that are
connected to an FCoE device.
The Fabric Provided MAC Address (FPMA) and the Fibre Channel Identifier (FCID) assigned to a
VN_Port cannot be associated with any single front-end CEE port on which the FLOGI was received.
LLDP neighbor information may be released before the timer expires when DCBX is enabled on a CEE
interface. This occurs only when the CEE interface state changes from active to any other state.
When the DCBX is not enabled, the neighbor information is not released until the timer expires,
irrespective of the interface state.
The FCoE login group name should be unique in a fabric-wide FCoE login management configuration. If
there is a login group name conflict, the merge logic would rename the login group by including the
last three bytes of the switch WWN in the login group name. As long as the OUI of the switch WWNs
are identical this merge logic guarantees uniqueness in any modified login group name (switches with
the same OUI will have unique last 3 bytes in WWN). However, if the participating switches have
different OUIs but identical last three bytes in the switch WWNs, then the merge logic will fail to
guarantee uniqueness of login group names. This will result in one of the login groups being dropped
from the configuration. This means, no device can login to the login group that is dropped as a result
of this name conflict. Users must create a new login group with a non-conflicting name to allow device
logins.
Ethernet switch services must be explicitly enabled using the command ―fosconfig –enable ethsw"
before powering on an FCOE10-24 blade. Failure to do so will cause the blade to be faulted (fault 9).
Users can enable ethsw after upgrading firmware without FC traffic interruption.
The Brocade 8000 does not support non-disruptive hot code loads (HCL). Upgrading the Brocade
8000 to FOS v7.0.1 or downgrading from v7.0.1 is disruptive to the IO through the switch.
Upgrading firmware on a DCX or DCX-4S with one or more FCOE10-24 blades from FOS v6.4.1_fcoe1
to FOS v7.0 or later will be non-disruptive to FCoE traffic through FCOE10-24 blades and FC traffic.
Upgrading firmware on a DCX or DCX-4S with one or more FCOE10-24 blades from FOS v6.3.x, v6.4.x,
and v6.4.1_fcoe to FOS v7.0 or later will be disruptive to any traffic through the FCOE10-24 blades.
Connecting Brocade 8000 to an FCR-capable switch with fcrbcast config enabled will cause a storm of
broadcast traffic resulting in termination of iswitchd.
When rebooting a DCX or DCX-4S with an FCOE10-24 blade, Qlogic CNA and LSAN zoning, the switch
will become very unresponsive for a period of time. This is due to the CNA sending excessive MS
queries to the switch.
The Brocade 8000 and FCOE10-24 can handle 169 small FCoE frames in bursts. If you are using the
Brocade 8000 or FCOE10-24, and you delete a large number of v-ports with HCM, some of the v-ports
may not appear to be deleted. To correct this, disable and re-enable FCoE with the following CLI
commands:
Fabric OS v7.0.1 Release Notes v1.0 Page 27 of 67