Reference Guide

5. Repeat Steps 1 to 4 to configure all remaining dot1p priorities in an ETS priority group.
FTOS Behavior: A priority group consists of 802.1p priority values that are grouped for similar bandwidth allocation and
scheduling, and that share latency and loss requirements. All 802.1p priorities mapped to the same queue must be in the
same priority group.
Configure all 802.1p priorities in priority groups associated with an ETS output policy (refer to Applying an ETS Output
Policy for a Priority Group to an Interface). You can assign each dot1p priority to only one priority group.
By default, all 802.1p priorities are grouped in priority group 0 and 100% of the port bandwidth is assigned to priority
group 0. The complete bandwidth is equally assigned to each priority class so that each class has 12 to 13%.
The maximum number of priority groups supported in ETS output policies on an interface is equal to the number of data
queues (4) on the port. The 802.1p priorities in a priority group can map to multiple queues.
If you configure more than one priority queue as strict priority or more than one priority group as strict priority, the
higher numbered priority queue is given preference when scheduling data traffic.
Applying an ETS Output Policy for a Priority Group to an Interface
To apply ETS on egress port traffic, you must associate a priority group with an ETS output policy which has scheduling
and bandwidth configuration in a DCB output policy, and then apply the output policy to an interface.
1. Create a DCB output policy to associate an ETS configuration with priority traffic.
CONFIGURATION mode
dcb-output policy-name
The maximum is 32 alphanumeric characters.
2. Enable the ETS configuration so that scheduling and bandwidth allocation configured in an ETS output policy or
received in a DCBx TLV from a peer can take effect on an interface.
DCB OUTPUT POLICY mode
ets mode on
The default: ETS mode is on.
3. Associate the 802.1p priority traffic in a priority group with the ETS configuration in a QoS output policy.
DCB OUTPUT POLICY mode
priority-group group-name qos-policy ets-policy-name
4. (Optional) Enter a text description of the output policy.
DCB OUTPUT POLICY mode
description text
The maximum is 32 characters.
5. Repeat Steps 1 to 4 to configure all remaining ETS priority groups with an ETS output policy.
6. Exit DCB Output Policy Configuration mode.
DCB OUTPUT POLICY
exit
7. Enter INTERFACE Configuration mode.
CONFIGURATION mode
interface type slot/port
8. Apply the output policy with the ETS configuration to an egress interface.
INTERFACE mode
dcb-policy output policy-name
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