Enabling Per-Port Per-Vlan Qos - Cisco Catalyst 4500 series Administration Manual

Configuring QoS on a Standalone Supervisor Engine 6-E/6L-E or Supervisor Engine 7-E/7L-E/8-E

Enabling Per-Port Per-VLAN QoS

The per-port per-VLAN QoS feature enables you to specify different QoS configurations on different
VLANs on a given interface. Typically, you use this feature on trunk or voice VLANs (Cisco IP Phone)
ports, as they belong to multiple VLANs.
To configure per-port per-VLAN QoS, perform this task:
Command
Step 1
Switch(config)# interface {fastethernet | gigabitethernet |
tengigabitethernet} slot/interface
Step 2
Switch(config-if)# vlan-range vlan_range
Step 3
Switch(config-if-vlan-range)# service-policy
{input | output} policy-map
Step 4
Switch(config-if-vlan-range)# exit
Step 5
Switch(config-if)# end
Step 6
Switch# show policy-map interface interface_name
Example 1
Figure 42-6
multiple VLANs (101 and 102). Within a port, you can create your own service policy per VLAN. This
policy, performed in hardware, might consist of ingress and egress Policing or giving precedence to
voice packet over data.
Figure 42-6 Per-Port Per-VLAN Topology
Port gi3/1
Port gi3/2
Service Policy/VLAN
Within a port
The following configuration file shows how to perform ingress and egress policing per VLAN using the
policy-map P31_QOS applied to port Gigabit Ethernet 3/1:
ip access-list 101 permit ip host 1.2.2.2 any
Software Configuration Guide—Release IOS XE 3.6.0E and IOS 15.2(2)E
42-70
|
Port-channel number
displays a sample topology for configuring PVQoS. The trunk port gi3/1 is comprised of
L2 trunk L2 trunk
VLAN VLAN Police1
Police1
101
Dscp
Dscp
101
DSCP
VLAN DSCP
VLAN
102
DSCP
DSCP
102
CoS
VLAN
103 CoS
DSCP
VLAN
DSCP
104
Chapter 42 Configuring Quality of Service
Purpose
Selects the interface to configure.
Specifies the VLANs involved.
Specifies the policy-map and direction.
Exits class-map configuration mode.
Exits configuration interface mode.
Verifies the configuration.
OL_28731-01