HPE7-A08 · Question #200
A customer has set global qos trust dscp on an HPE Aruba Networking CX 6300 VSF configuration, which replaced the existing HPE Aruba Networking 5406R VSF. After the change, a video streaming service…
The correct answer is C. int 1/1/20, 2/1/20. Global qos trust dscp makes all interfaces trust DSCP by default, but CoS-based applications -- such as certain video streaming systems -- require the LAG member interfaces to explicitly trust CoS to preserve the correct queue mapping. Applying qos trust cos on the physical…
Question
A customer has set global qos trust dscp on an HPE Aruba Networking CX 6300 VSF configuration, which replaced the existing HPE Aruba Networking 5406R VSF. After the change, a video streaming service connected to ports 1/1/20 and 2/1/20, bound to LAG 20, no longer maps to the CoS priority queue mappings used in the old configuration. What configuration change would enable priority trust on DSCP by default and on traffic that requires CoS?
Options
- Aint 1/1/20, 2/1/20
- Bqos trust dscp, cos
- Cint 1/1/20, 2/1/20
- Dint lag 20
How the community answered
(26 responses)- A19% (5)
- B12% (3)
- C62% (16)
- D8% (2)
Explanation
Global qos trust dscp makes all interfaces trust DSCP by default, but CoS-based applications -- such as certain video streaming systems -- require the LAG member interfaces to explicitly trust CoS to preserve the correct queue mapping. Applying qos trust cos on the physical uplink ports 1/1/20 and 2/1/20 ensures CoS markings are honored on those ports while DSCP trust remains in effect globally for all other traffic.
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