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
246
Data Center Bridging (DCB)
Komentáře k této Příručce