How does the switch manage ingress queueing when I configure - trust dscp - on a port of a linecard that supports only cos-based queueing e.g. the WS-X6848-GE-TX on Catalyst 6500?
1) Does the switch ingress queueing according to the incoming CoS value in the packet (given that the packet has a 802.1q tag)
2) Does the switch ingress queueing according to the "internal" CoS value it gets from the DSCP-to-CoS map
According to the Catalyst 6500 Configuration Guide - Figure 43-3 - the switch does the queueing based on the incoming CoS value of the packet.
Can anybody confirm this?