Administrator Guide

To create a QoS output policy that allocates dierent amounts of bandwidth to the dierent trac types/ dot1p priorities assigned
to a queue and apply the output policy to the interface, follow these steps.
1. Create a QoS output policy.
CONFIGURATION mode
qos-policy-output output-policy-name
The maximum 32 alphanumeric characters.
2. Congure the percentage of bandwidth to allocate to the dot1p priority/queue trac in the associated L2 class map.
QoS OUTPUT POLICY mode
bandwidth-percentage percentage
The default is none.
3. Repeat Step 2 to congure bandwidth percentages for other priority queues on the port.
QoS OUTPUT POLICY mode
bandwidth-percentage percentage
4. Create a priority group for strict-priority scheduling.
QoS OUTPUT POLICY mode
scheduler strict
5. Exit QoS Output Policy Conguration mode.
QoS OUTPUT POLICY mode
exit
6. Enter INTERFACE Conguration mode.
CONFIGURATION mode
interface type slot/port
7. Apply the QoS output policy with the bandwidth percentage for specied priority queues to an egress interface.
INTERFACE mode
service-policy output output-policy-name
Congure a DCBx Operation
DCB devices use data center bridging exchange protocol (DCBx) to exchange conguration information with directly connected
peers using the link layer discovery protocol (LLDP) protocol.
DCBx can detect the misconguration of a peer DCB device, and optionally, congure peer DCB devices with DCB feature settings
to ensure consistent operation in a data center network.
DCBx is a prerequisite for using DCB features, such as priority-based ow control (PFC) and enhanced trac selection (ETS), to
exchange link-level congurations in a converged Ethernet environment. DCBx is also deployed in topologies that support lossless
operation for FCoE or iSCSI trac. In these scenarios, all network devices are DCBx-enabled (DCBx is enabled end-to-end). For
more information about how these features are implemented and used, refer to:
• Conguring Priority-Based Flow Control
• Congure Enhanced Transmission Selection
• Conguring FIP Snooping
DCBx supports the following versions: CIN, CEE, and IEEE2.5.
Prerequisite: For DCBx, enable LLDP on all DCB devices.
FC Flex IO Modules
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