Cisco Cisco IOS XE 3.5E Guide De Dépannage
[unconditional set]
Marking
[conditional
marking]
marking]
DSCP mutation
Class−default table−map
Policing
1r2c
1r2c and 2r3c
Policing markdown
Policing exceeds mark−down
[Only supports DSCP]
Policing exceeds and violates
mark−down
mark−down
[Supports CoS, DSCP, Prec ]
Aggregate Policing Supports
Agg−policing [one type of
HQoS]
HQoS]
Ingress Queuing
Supports only on 3750 but does not support on 3750x
Does not support
Hierarchical QoS
(HQoS)
(HQoS)
VLAN based HQoS only
Port−based Agg−policing and
Per−VLAN (PV)
Per−VLAN (PV)
Egress
Feature
3750
3850
Classification support for
none queuing action
none queuing action
Does not support
CoS, Prec, DSCP, QoS−group, ACL
and VLAN
Classification support for
queuing action
queuing action
CoS and DSCP
CoS, Prec, DSCP and QoS−group
Marking
Does not support
Set CoS, Prec, and DSCP
Policing
Does not support
1r2c , 2r3c with exceed/violate mark down
through table−map
through table−map
Max number of queues
and queue types
and queue types
1P3Q3T [ 4 queues]
Expedite queue−> Priority queue
2P6Q3T [ up to 8 queues ]
Egress Queuing
Share mode, shape mode,
queue−limit, priority and
queue−buffer
queue−limit, priority and
queue−buffer
Bandwidth, bandwidth remaining, shaping,
queue−limit, priority and queue−buffer
queue−limit, priority and queue−buffer
HQoS
Does not support
HQoS: Agg−policing, PV, Port−shaper and
Parent user shaper with child non−queuing
action
Parent user shaper with child non−queuing
action
Common QoS Show Commands
3750
Input show commands:
show run class−map [name_of_class−map]
show run policy−map [name of policy−map]
show policy−map int [interface_name]
General show commands:
show mls qos maps
show mls qos maps <options>