Creating A Qos Ets Output Policy - Dell Force10 S4810P Configuration Manual

• When allocating bandwidth or configuring a queue scheduler for dot1p priorities in a priority group on
a DCBx CIN interface, take into account the CIN bandwidth allocation
Allocation for DCBx
• Although an ETS output policy does not support WRED, ECN, rate shaping, and rate limiting because
these parameters are not negotiated by DCBx with peer devices, you can apply a QoS output policy
with WRED and/or rate shaping on a DCBx CIN-enabled interface (refer to
Shaping on page 763
configuration in the QoS output policy should take into account the bandwidth allocation or queue
scheduler configured in the ETS output policy.
• You can only use a QoS ETS output policy in association with a priority group in a DCB output policy
and cannot be applied to an interface as a normal QoS output policy (refer to
Policy for a Priority Group to an Interface
Service
Note: The IEEE 802.1Qaz, CEE, and CIN versions of ETS are supported.

Creating a QoS ETS Output Policy

A QoS output policy that you create to optimize bandwidth on an output interface for specified priority
traffic consists of the ETS settings used in DCBx negotiations with peer devices:
• Bandwidth percentage
• Queue scheduling
To create a QoS output policy with ETS settings, follow these steps:
Step Task
1 Create a QoS output policy to configure the ETS
bandwidth allocation and scheduling for priority
traffic.
Maximum: 32 characters.
2 (Optional) Configure the method used to
schedule priority traffic in port queues.
•
strict
any other queued traffic (refer to
Strict-priority Queueing
Quality of Service
Note: If you configure a scheduling method, you
cannot configure bandwidth allocation in Step 3.
314
| Data Center Bridging (DCB)
CIN) and dot1p-queue mapping
and Weighted Random Early
(QoS)).
- Strict priority traffic is serviced before
in Chapter 38,
(QoS)).
(Table 13-1).
Detection). In this case, the WRED or rate shaping
and Create an output QoS policy
Command
qos-policy-output
policy-name ets
scheduler value
(Configuring Bandwidth
Configure Port-based Rate
Applying an ETS Output
in Chapter 38, Quality of
Command Mode
CONFIGURATION
POLICY-MAP-OUT-ETS