Chapter 42 Configuring PFC QoS

Configuring PFC QoS

This example shows how to verify the configuration:

Router# show policy-mapmax-pol-ipp5Policy Map max-pol-ipp5

class ipp5

class ipp5

police flow 10000000 10000 conform-action set-prec-transmit 6 exceed-action policed-dscp-transmit

trust precedence

police 2000000000 2000000 2000000 conform-action set-prec-transmit 6 exceed-action policed-dscp-transmit

Router#

Attaching a Policy Map to an Interface

To attach a policy map to an interface, perform this task:

 

Command

Purpose

Step 1

 

 

Router(config)# interface {{vlan vlan_ID}

Selects the interface to configure.

 

{type1 slot/port[.subinterface]} {port-channel

 

 

number[.subinterface]}}

 

Step 2

 

 

Router(config-if)# service-policy[input

Attaches a policy map to the interface.

 

output] policy_map_name

 

 

Router(config-if)#no service-policy [input

Removes the policy map from the interface.

 

output] policy_map_name

 

Step 3

 

 

Router(config-if)# end

Exits configuration mode.

Step 4

 

 

Router# show policy-map interface {{vlan vlan_ID}

Verifies the configuration.

 

{type1 slot/port} {port-channelnumber}}

 

 

 

 

1.type = ethernet, fastethernet, gigabitethernet, or tengigabitethernet

When attaching a policy map to an interface, note the following information:

•Do not attach a service policy to a port that is a member of an EtherChannel.

•With DFCs installed, PFC2 does not support VLAN-based QoS: you cannot enter the mls qos vlan-basedcommand or attach service policies to VLAN interfaces.

•PFC QoS supports the output keyword only with a PFC3 and only on Layer 3 interfaces (either LAN ports configured as Layer 3 interfaces or VLAN interfaces). With a PFC3, you can attach both an input and an output policy map to a Layer 3 interface.

•VLAN-based or port-based PFC QoS on Layer 2 ports is not relevant to policies attached to Layer 3 interfaces with the output keyword.

•Policies attached with the output keyword do not support microflow policing.

•You cannot attach a policy map that configures a trust state with the service-policy output command.

•Filtering based on IP precedence or DSCP in policies attached with the output keyword uses the received IP precedence or DSCP values. Filtering based on IP precedence or DSCP in policies attached with the output keyword is not based on any IP precedence or DSCP changes made by ingress QoS.

 

Cisco 7600 Series Router Cisco IOS Software Configuration Guide, Release 12.2SX

42-80

OL-4266-08

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Cisco Systems OL-4266-08 Attaching a Policy Map to an Interface, To attach a policy map to an interface, perform this task
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OL-4266-08 specifications

Cisco Systems OL-4266-08 is a robust and versatile certification that focuses on the essentials of implementing and troubleshooting Cisco collaborations solutions. As enterprises increasingly rely on unified communications, having professionals who are knowledgeable in the latest Cisco technologies becomes a necessity. This certification is part of the Cisco Certified Network Associate (CCNA) program, which serves as a foundational stepping stone for individuals aspiring to build a career in networking and collaboration technologies.

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In conclusion, Cisco Systems OL-4266-08 equips networking professionals with the necessary skills to implement and support Cisco collaboration solutions. The focus on hands-on experience, along with in-depth coverage of technology and security protocols, makes it a valuable certification in the fast-paced world of network communications. With the rise of remote work and digital collaboration, this certification is pivotal for anyone looking to enhance their career in networking and technology.
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