Service Manual

If an error occurs when a port receives a peer’s ETS configuration, the port’s configuration is reset to the
previously configured ETS output policy. If no ETS output policy was previously applied, the port is reset to the
default ETS parameters.
Related Commands
• scheduler — schedules the priority traffic in port queues.
• bandwidth-percentage — bandwidth percentage allocated to the priority traffic in port queues.
scheduler
Configure the method used to schedule priority traffic in port queues.
Syntax
scheduler value
To remove the configured priority schedule, use the no scheduler command.
Parameters
value Enter schedule priority value. The valid values are:
• strict: strict-priority traffic is serviced before any other queued traffic.
• werr: weighted elastic round robin (werr) provides low-latency scheduling for priority
traffic on port queues.
Defaults Weighted elastic round robin (WERR) scheduling is used to queue priority traffic.
Command Modes POLICY-MAP-OUT-ETS
Command History
Version 9.2(0.0) Introduced on the M I/O Aggregator.
Version 8.3.16.1 Introduced on the MXL 10/40GbE Switch IO Module.
Usage Information
dot1p priority traffic on the switch is scheduled to the current queue mapping. dot1p priorities within the same
queue must have the same traffic properties and scheduling method.
ETS-assigned scheduling applies only to data queues, not to control queues.
The configuration of bandwidth allocation and strict-queue scheduling is not supported at the same time for a
priority group. If you configure both, the configured bandwidth allocation is ignored for priority-group traffic when
you apply the output policy on an interface.
Related Commands
• qos-policy-output ets — configures the ETS bandwidth allocation.
• bandwidth-percentage — bandwidth percentage allocated to priority traffic in port queues.
show dcb
Displays the data center bridging status, the number of PFC-enabled ports, and the number of PFC-enabled queues.
Syntax
show dcb [stack-unit unit-number]
Data Center Bridging (DCB) 377