Cisco 4500M Software Manual page 387

Chapter 29 Configuring QoS
Figure 29-4 Policing and Marking Flowchart
OL-6696-01
Start
Is there
Yes
a QoS Policy
port QoS VLAN-
attached to the
based?
port?
No
Yes
Is there a QoS Is there a QoS
Policy attached to the Policy attached to the
VLAN to which the VLAN to which the
packet belongs packet belongs
Yes Yes
Use QoS Use QoS
policy on policy on
the VLAN the port
Are there
No
any more QoS
ACLs in the
policy?
Yes
Does the
packet match a No
"permit" ACB in
the ACL?
Yes
Are there
No
any more QoS
ACLs in the
policy?
Yes
Is the packet
No
in-profile for
the policer?
Yes
Transmit
Done
Is the
No
No
Out of Profile
Action?
Mark-down
Drop
Mark-down Drop
Software Configuration Guide—Release 12.2(25)EW
Overview of QoS
29-11