Cisco Systems 3560 - page 793

34-53
Catalyst 3560 Switch Software Configuration Guide
OL-8553-06
Chapter 34 Configuring QoS
Configuring Standard QoS
• The hierarchical policy map is attached to the SVI and affects all traffic belonging to the VLAN.
The actions specified in the VLAN-level policy map affect the traffic belonging to the SVI. The
police action on the port-level policy map affects the ingress traffic on the affected physical
interfaces.
• When configuring a hierarchical policy map on trunk ports, the VLAN ranges must not overlap. If
the ranges overlap, the actions specified in the policy map affect the incoming and outgoing traffic
on the overlapped VLANs.
• Aggregate policers are not supported in hierarchical policy maps.
• When VLAN-based QoS is enabled, the switch supports VLAN-based features, such as the VLAN
map.
• You can configure a hierarchical policy map only on the primary VLAN of a private VLAN.
Beginning in privileged EXEC mode, follow these steps to create a hierarchical policy map:
Command Purpose
Step 1 configure terminal Enter global configuration mode.
Step 2 class-map [match-all | match-any]
class-map-name
Create a VLAN-level class map, and enter class-map configuration
mode. For information about creating a class map, see the “Classifying
Traffic by Using Class Maps” section on page 34-46.
By default, no class maps are defined.
• (Optional) Use the match-all keyword to perform a logical-AND
of all matching statements under this class map. All match criteria
in the class map must be matched.
• (Optional) Use the match-any keyword to perform a logical-OR of
all matching statements under this class map. One or more match
criteria must be matched.
• For class-map-name, specify the name of the class map.
If neither the match-all or match-any keyword is specified, the default
is match-all.
Note Because only one match command per class map is supported,
the match-all and match-any keywords function the same.
Step 3 match {access-group acl-index-or-name |
ip dscp dscp-list | ip precedence
ip-precedence-list}
Define the match criterion to classify traffic.
By default, no match criterion is defined.
Only one match criterion per class map is supported, and only one ACL
per class map is supported.
• For access-group acl-index-or-name, specify the number or name
of the ACL.
• For ip dscp dscp-list, enter a list of up to eight IP DSCP values to
match against incoming packets. Separate each value with a space.
The range is 0 to 63.
• For ip precedence ip-precedence-list, enter a list of up to eight
IP-precedence values to match against incoming packets. Separate
each value with a space. The range is 0 to 7.
Step 4 exit Return to class-map configuration mode.