Viewing resource usage for QoS policies

When configuring global QoS classifiers using TCP/UDP and a Layer 4 Application port number or port range, the switch automatically assigns two QoS resources for each policy—one for traffic to the TCP/UDP destination port and one for traffic to the TCP/UDP source port.

The show qos resources command displays the number of hardware resources currently in use by QoS policies and other software features.

Viewing the hardware resources used by currently configured QoS policies

switch(config)# show qos resources

 Resource usage in Policy Enforcement Engine

        |    Rules    |  Rules Used
  Slots |  Available  | ACL | QoS | IDM |  VT | Mirror | PBR | Other |
  ------+-------------+-----+-----+-----+-----+--------+-----+-------|
    A   |        3014 |  15 |  11 |   0 |   1 |      0 |   0 |    3  |

        |    Meters   |  Meters Used
  Slots |  Available  | ACL | QoS | IDM |  VT | Mirror | PBR | Other |
  ------+-------------+-----+-----+-----+-----+--------+-----+-------|
    A   |         250 |     |   5 |   0 |     |        |     |     0 |

        | Application |
        | Port Ranges |  Application Port Ranges Used
  Slots |  Available  | ACL | QoS | IDM |  VT | Mirror | PBR | Other |
  ------+-------------+-----+-----+-----+-----+--------+-----+-------|
    A   |          14 |   2 |   0 |   0 |     |      0 |   0 |     0 |

 0 of 8 Policy Engine management resources used.

 Key:
 ACL = Access Control Lists
 QoS = Device & Application Port Priority, QoS Policies, ICMP rate limits
 IDM = Identity Driven Management
 VT  = Virus Throttling blocks
 Mirror = Mirror Policies, Remote Intelligent Mirror endpoints
 PBR = Policy Based Routing Policies
 Other = Management VLAN, DHCP Snooping, ARP Protection, Jumbo IP-MTU,
         Transparent Mode.

 Resource usage includes resources actually in use, or reserved for future
 use by the listed feature.  Internal dedicated-purpose resources, such as
 port bandwidth limits or VLAN QoS priority, are not included.
NOTE:

ACLs and QoS policies share the same application port ranges. If a new QoS policy specifies a port range that is already configured for one or more ACLs, the QoS column increases by 1, but the Application Port Ranges Available column remains unchanged. Likewise, if an ACL is configured for a port range on which a QoS policy is already applied, the ACL column increases by 1, while the Available column remains unchanged.

Similarly, when you remove a port range, the Application Port Ranges Available column increases only if the port range is not configured for an existing ACL or QoS policy on the switch.