Cisco Catalyst 4500 Series Configuration Manual page 96

auto qos trust
Because police commands executed in policy map configuration mode do not allow the remarking of
qos-groups for traffic flows that exceed defined rate limits, AutoQos-4.0-Scavenger-Queue must be
configured to match either qos-group 7 or dscp af11. When the auto qos classify police command
executes, traffic flows that violate the defined rate limit are remarked to cs1 but retain their original
qos-group classification. This is because qos-groups cannot be remarked as an exceed action. However,
because AutoQos-4.0-Scavenger-Queue is defined before all other queues in the output policy map,
remarked packets will fall into it, despite retaining their original qos-group labels.
class AutoQos-4.0-Scavenger-Queue
class AutoQos-4.0-Priority-Queue
class AutoQos-4.0-Control-Mgmt-Queue
class AutoQos-4.0-Multimedia-Conf-Queue
class AutoQos-4.0-Multimedia-Stream-Queue
class AutoQos-4.0-Trans-Data-Queue
class AutoQos-4.0-Bulk-Data-Queue
class class-default
Interface Level Commands Generated
For Fa/Gig Ports:
Switch(config-if)# service-policy input AutoQos-4.0-Input-Policy
Examples The following example shows how to police traffic from an untrusted interface gigabitethernet1/1:
Switch(config)# interface gigabitethernet1/1
Switch(config-if)# auto qos trust
Switch(config-if)# do sh running interface interface-id
interface FastEthernet2/1
auto qos trust
service-policy input AutoQos-4.0-Input-Policy
service-policy output AutoQos-4.0-Output-Policy
end
Catalyst 4500 Series Switch Cisco IOS Command Reference—Release XE 3.9.xE and 15.2(5)Ex
2-58
match qos-group 16
class-map match-all AutoQos-4.0-Multimedia-Conf-Queue
match qos-group 34
class-map match-all AutoQos-4.0-Multimedia-Stream-Queue
match qos-group 26
class-map match-all AutoQos-4.0-Trans-Data-Queue
match qos-group 18
class-map match-all AutoQos-4.0-Bulk-Data-Queue
match qos-group 10
class-map match-any AutoQos-4.0-Scavenger-Queue
match qos-group 8
match dscp cs1
policy-map AutoQos-4.0-Output-Policy
bandwidth remaining percent 1
priority
police cir percent 30 bc 33 ms
conform-action transmit exceed-action drop
bandwidth remaining percent 10
bandwidth remaining percent 10
bandwidth remaining percent 10
bandwidth remaining percent 10
dbl
bandwidth remaining percent 4
dbl
bandwidth remaining percent 25
service-policy output AutoQos-4.0-Output-Policy
Chapter 2 Cisco IOS Commands for the Catalyst 4500 Series Switches
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