Cisco UCS 5100 Setup page 4

allows a two−level Deficit Weighted Round Robin (DWRR) with strict priority support. This allows
control not only of bandwidth, but also of latency.
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Data Center Bridge eXchange (DCBX) is a discovery and capability exchange protocol to verify that
both ends are configured properly to support the DCE traffic. It can provide basic configuration if one
of the two sides is not configured properly.
The fabric interconnect operates in N−Port Virtualization (NPV) mode and not as a FC switch in the fabric.
This means that it does not require a FC domain ID to keep the number of domain IDs in the SAN fabric the
same. The fabric interconnect joins the fabric through a normal FLOGI. The FLOGIs that comes from the
server blade adapters is translated by the NPV process into FDISC into the fabric.
Main Task
Task
Before you begin, make sure that your upstream MDS switches are NPIV enabled, and assign the selected
interface to the Cisco UCS with the appropriate VSAN number.
The Cisco UCS must be up and operational by now and have basic connectivity established.
1. Verify that Cisco UCS Fabric Interconnect Supports FCoE Feature
The Fabric Interconnect must be set in order to operate in FCoE mode. Connect to the Fabric Interconnect and
connect to nxos mode in order to verify this:
! Log into UCS Manager CLI mode
! Connect to "nxos" mode
cali−spring−A# connect nxos
Cisco UCS 6100 Series Fabric Interconnect
TAC support: http://www.cisco.com/tac
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! Make sure FCoE is supported on the switch,
by issuing "show fcoe"
cali−spring−A# show fcoe
FCoE/FC feature is desired.