Quality of Service Support
The VXLAN-controlled tenant traffic has to compete with the tunneled data traffic. To ensure priority forwarding of VXLAN-controlled tenant traffic, Quality of Service (QoS) marking and remarking is supported. The Layer 2 User Priority and Layer 3 DSCP are copied from inner to outer headers during encapsulation, so that the transport Layer 2 and Layer 3 headers reflect the passenger Layer 2 and Layer 3 priority. For more information on DSCP remarking, refer to the RUCKUS FastIron QoS and Traffic Management Configuration Guide.
Note: Copying the Layer 2 User Priority from the encapsulating Layer 2 header into the outgoing
Layer 2 header (after decapsulation) is not supported. Likewise, copying the Layer
3 DSCP from the encapsulating Layer 3 header into the outgoing Layer 3 header (after
de-capsulation) is not supported. However, the DSCP carried in the passenger Layer
3 header is maintained across the VXLAN tunnel.