HP ProCurve Switch 6120G/XG Management Manual page 193

Quality of Service (QoS): Managing Bandwidth More Effectively
Using QoS Classifiers to Configure Quality of Service for Outbound Traffic
5-22
Disables all ToS classifier operation. Current ToS DSCP
policies and priorities remain in the configuration and will
become available if you re-enable ToS diff-services.
Syntax: no qos type-of-service [diff-services < codepoint >]
Deletes the DSCP policy assigned to the
< codepoint > and returns the < codepoint > to the 802.1p
priority setting it had before the DSCP policy was assigned.
(This will be either a value from 0 - 7 or
Syntax: show qos type-of-service
Displays a listing of codepoints, with any corresponding
DSCP policy re-assignments for outbound packets. Also lists
the (802.1p) priority for each codepoint that does not have a
DSCP policy assigned to it.
For example, suppose you want to configure the following two DSCP policies
for packets received with the indicated DSCPs.
Received Policy
DSCP DSCP
001100 000010
001101 000101
1. Determine whether the DSCPs already have priority assignments, which
could indicate use by existing applications. This is not a problem as long
as the configured priorities are acceptable for all applications using the
same DSCP. (Refer to the "Notes on Changing a Priority Setting" on page
5-36. Also, a DSCP must have a priority configured before you can assign
any QoS classifiers to use it.)
802.1p Policy Name
Priority (Optional)
6 Level 6
4 Level 4
.)
No-override