Attaching A Policy Map To An Interface - Cisco Catalyst 4500 Series Configuration Manual

Configuring QoS

Attaching a Policy Map to an Interface

To create a policy map, enter this command:
Command
Switch(config)# interface {vlan vlan_ID |
{fastethernet | gigabitethernet}
slot/interface | Port-channel number}
Switch(config-if)# [no] service-policy
input policy_map_name
Switch(config-if)# end
Switch# show policy-map interface {vlan
vlan_ID | {fastethernet | gigabitethernet}
slot/interface}
Policing
The supervisor engine supports policers in the following operation modes:
•
•
•
•
These numbers represent individual policer entries in the hardware that support a single rate and burst
parameter. Based on this, a switch supports the following number of policers:
Software Configuration Guide—Release IOS XE 3.3.0SG and IOS 15.1(1)SG
40-16
Single Rate Policer Two Color Marker
This kind of policer is configured with just the committed rate (CIR) and normal burst and it has
only conform and exceed actions.
This is the only form supported in the Supervisor Engine II-Plus to V-10GE based systems.
Single Rate Three Color Marker (srTCM) (RFC 2697)
Two Rate Three Color Marker (trTCM) (RFC 2698)
Color Blind Mode
Policing accuracy of 0.75% of configured policer rate.
The engine supports 16384 (16 x 1024, 16K) single rate, single burst policers. 16K policers are
organized as 8 banks of 2K policers. The policer banks are dynamically assigned (input or output
policer bank) by the software depending on the QoS configuration. So, the 16K policers are
dynamically partitioned by software as follows:
– 0 Input Policers and 16K Output Policers
– 2K Input Policers and 14K Output Policers
– 4K Input Policers and 12K Output Policers
– 6K Input Policers and 10K Output Policers
– 8K Input Policers and 8K Output Policers
– 10K Input Policers and 6K Output Policers
– 12K Input Policers and 4K Output Policers
14K Input Policers and 2K Output Policers
–
16K Input Policers and 0 Output Policers
–
Chapter 40 Configuring Quality of Service
Purpose
Selects the interface to configure.
Attaches a policy map to the input direction of the
interface. Use the no keyword to detach a policy
map from an interface.
Exits configuration mode.
Verifies the configuration.
OL-25340-01