ForFIP capable,converged network adapters, such as the Cisco UCS CNA M72KR-Q and the Cisco UCS
CNAM72KR-E, the named VSAN must be configured with a named VLAN that is not the native VLAN for
theFCoE VLAN ID. Thisconfiguration ensures that FCoE traffic can pass through these adapters.
Inthe following sample configuration, a service profile with a vNIC and vHBA mapped to fabric A is associated
witha server that has FIP capable, converged network adapters:
• The vNIC is configured to use VLAN 10.
• VLAN 10 is also designated as the native VLAN for the vNIC.
• The vHBA is configured to use VSAN 2.
• Therefore, VSAN 2 cannot be configured with VLAN 10 as the FCoEVLAN ID. VSAN 2 can be
mappedto any otherVLAN configured on fabricA.
Fibre Channel Uplink Trunking for Named VSANs
Youcan configure Fibre Channel uplink trunking for the named VSANs on each fabric interconnect. If you
enabletrunking on a fabricinterconnect, all named VSANs in a Cisco UCS domain are allowedon all Fibre
Channeluplink ports onthat fabric interconnect.
Guidelines and Recommendations for VSANs
Thefollowing guidelinesand recommendations apply toall namedVSANs, including storageVSANs.
VSAN 4079 is a Reserved VSAN ID
Donot configure a VSAN as 4079. This VSAN is reserved and cannot be used in either FC switch mode or
FCend-host mode.
Ifyou createa named VSAN with ID 4079, Cisco UCS Manager marks that VSAN with an error and raises
afault.
Reserved VSAN Range for Named VSANs in FC Switch Mode
Ifyou plan to use FC switch mode in a Cisco UCS domain, do not configure VSANs with an ID in the range
from3040 to 4078.
VSANsin that range are not operational if the fabric interconnects are configured to operate in FC switch
mode.Cisco UCS Manager marks that VSAN with an error and raises a fault.
Reserved VSAN Range for Named VSANs in FC End-Host Mode
Ifyou plan to use FC end-host mode in a Cisco UCS domain, do not configure VSANs with an ID in the range
from3840 to 4079.
VSANsin that range are not operational if the following conditions exist in a Cisco UCS domain:
• The fabric interconnects are configured to operate in FC end-host mode.
• The Cisco UCS domain is configured with Fibre Channel trunking or SAN port channels.
Ifthese configurationsexist, Cisco UCS Manager doesthe following:
Cisco UCS Manager GUI Configuration Guide, Release 2.0
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Fibre Channel Uplink Trunking for Named VSANs