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What is QOS trust mode and how to configure it in Mobility access switch?
What is QOS trust mode and how to configure it in Mobility access switch?
What is QOS trust mode and how to configure it in Mobility access switch?
A:
Previously on ArubaOS 7.0, only one mode of QoS trust (L2 + L3 trust) was supported Starting ArubaOS 7.1, more granular QoS trust modes are supported:
- Auto - L2 + L3 trust
- Dot1p - Trust only 802.1p bits
- Dscp - Trust only DSCP bits of the IP header
- None - Do not trust any incoming 802.1p/DSCP. Will be queued to Queue 0
QoS Trust Mode - Configuration
Interface can be configured to trust mode by following CLI
(ArubaS3500) (config) #interface gigabitethernet 0/0/21
(ArubaS3500) (gigabitethernet "0/0/21") #qos trust <auto | dot1p | dscp | none>
QoS Trust configuration can be verified using following CLI command:
(ArubaS3500) #show interface-config gigabitethernet 0/0/21
gigabitethernet "0/0/21"
------------------------
Parameter Value
--------- -----
...
Interface QoS Profile N/A
...
Interface QoS Trust Mode DSCP
...
note: If qos trust mode is auto, and incoming packet is marked with both 802.1p and DSCP bits, the packet will be classified based on DSCP
