Ufp Limitations - Lenovo CN4093 Application Manual

UFP Limitations

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CN4093 Application Guide for N/OS 8.3
The following limitations apply when configuring UFP:
 FCoE must be configured only on vPort 2 of the physical NIC for Emulex CNA
and on vPort 1 of the physical NIC for Qlogic CNA. For Emulex NIC CN4052,
FCoE can be configured on vPort 2 or vPort 3.
 UFP port in FCoE mode cannot operate with FIP auto-VLAN feature.
 VLANs that have member vPorts configured in trunk, access or auto modes
cannot have member vPorts configured in tunnel mode or FCoE.
 vPorts on a physical port must be members of separate VLANs.
 VLANs 4002-4009 are reserved for outer tagging.
 A UFP-enabled port with no vPorts configured cannot belong to the same
VLAN as a UFP-enabled port that has vPorts configured in trunk, access or auto
modes.
 UFP bandwidth is guaranteed lossless only for unicast traffic.
 VMready is supported only on a vPort which is configure in auto-VLAN mode.
When a vPort is in auto-VLAN mode, it can support up to 32 VMGroups.
 EVB is supported only on a vPort which is configured in auto-VLAN mode.
 VMready and EVB cannot be configured on the same physical port.
 UFP vPorts support up to 1024 VLANs in trunk and auto mode on the switch in
standalone mode. Stacking switches have a limitation of 256 VLANs in both
auto and trunk mode.
 When CEE is turned on, FCoE vPort must be used for lossless priority traffic. For
loss-tolerant priority traffic, a non-FCoE UFP vPort must be used. The lossless
property of FCoE vPort is not guaranteed, if lossless and loss-tolerant traffic are
combined.
When the vPort is enabled and the channel link state is up, the system does not

support changing vPort VLAN type from private/non-private to
non-private/private.
 A maximum of eight vPorts can be configured for each physical switch port.
QoS Enhanced Transmission Selection (ETS) mode must be enabled when
configuring more than four vPorts of a physical switch port. For more details
about ETS mode, check
 UFP and vNIC cannot be configured enabled at the same time on a switch.
 VMReady Local Group configuration is not supported by UFP.
 If QoS ETS mode is used, a FCoE vPort must be configured with priority 3.
 UFP vPorts cannot be aggregated to form a LAG/vLAG client.
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