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14 Version 1.3.0
6.6 Virtual Address attributes
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Virtual address attributes include the following attributes:
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 VirtMacAddr
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 VirtIscsiMacAddr
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 VirtFIPMacAddr
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 VirtWWN
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 VirtWWPN
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 VirtualizationMode
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The default values of these virtual attributes is equal to the permanent addresses programmed onto the
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controller. For example, the VirtMacAddr default value is MacAddr on that port or partition.
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To set these attributes, see Section 8.1 and 8.2 for more details. Virtual address attributes behave
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differently from the other attributes in the following way:
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6.6.1 Read Write behavior
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The virtual address attributes listed above behave as Read-Only attributes if accessed via the System
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Settings (F2 during POST)  Device Settings menu. However, they behave as Read-Write attributes
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through the Lifecycle Controller Remote Services interface used by WSMAN clients. This allows a remote
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application to change the virtual identities of NIC/CNA controllers, similar to the FlexAddress feature that
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allows a chassis management controller (CMC) to distribute a predefined list of identities across all blade
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NIC/CNA controllers on a chassis.
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6.6.2 Reset behavior
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Setting a particular Input/Ouput (IO) attribute to zeros causes that particular address to be erased and
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reset to the default permanent address. The attributes can be set to default permanent values: as
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equivalent to resetting to factory default and removing a virtual address attribute from a system.
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When there is AC Power loss to the system, all the virtual address attributes are erased and reset to
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default addresses when AC Power is restored to the system. AC Power loss includes power loss to both
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MAIN and AUX power bus.
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NOTE: This behavior may not be available on the Broadcom CNA.
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6.7 Behavior Differences between Broadcom and QLogic CNAs
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There are few key differences between CNA manufacturers: Broadcom and QLogic. The supported CNAs
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for Broadcom and QLogic include:
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Broadcom:
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M710HD Dual Port 10Gig 57712 NDC,
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QLogic:
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Qlogic QMD8252-K Dual Port 10GbE NDC
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Qlogic QME8242 10GbE Embedded Mezz Card
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Table 6 – Behavior Differences between Broadcom and QLogic CNAs lists the behaviorial differences.
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Table 6 – Behavior Differences between Broadcom and QLogic CNAs
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Difference
Broadcom
QLogic
Offload
personalities
Only two Offload personalities (FCoEOffloadMode and
iScsiOffloadMode) are allowed per port.
Partition 3 allows iScsiOffloadMode
personality and Partition 4 allows
FCoEOffloadMode personality.