Chapter 42 Configuring PFC QoS

Configuring PFC QoS

With a PFC3 and Release 12.2(18)SXD and later releases, you can configure named ACLs that filter ARP traffic (EtherType 0x0806) for QoS.

To configure an ARP ACL for QoS filtering, perform this task:

 

Command

Purpose

Step 1

 

 

Router(config)# arp access-listlist_name

Configures an ARP ACL for QoS filtering.

 

Router(config)# no arp access-list list_name

Deletes an ARP ACL.

Step 2

 

 

Router(config-arp-nacl)# {permit deny} {ip {any

Configures an access control entry (ACE) in an ARP ACL

 

host sender_ip sender_ip

for QoS filtering.

 

sender_ip_wildcardmask} mac any

 

 

Router(config-arp-nacl)# no {permit deny} {ip

Deletes an ACE from an ARP ACL.

 

{any host sender_ip sender_ip

 

 

sender_ip_wildcardmask} mac any

 

 

 

 

When configuring an entry in an ARP ACL for QoS filtering, note the following information:

•This publication describes the ARP ACL syntax that is supported in hardware by the PFC3. Any other ARP ACL syntax displayed by the CLI help when you enter a question mark (“?”) is not supported and cannot be used to filter ARP traffic for QoS.

•ACLs entries are scanned in the order you enter them. The first matching entry is used. To improve performance, place the most commonly used entries near the beginning of the ACL.

•An implicit deny ip any mac any entry exists at the end of an ACL unless you include an explicit permit ip any mac any entry at the end of the list.

•All new entries to an existing list are placed at the end of the list. You cannot add entries to the middle of a list.

This example shows how to create an ARP ACL named arp_filtering that only permits ARP traffic from IP address 1.1.1.1:

Router(config)# arp access-list arp_filtering

Router(config-arp-nacl)#permit ip host 1.1.1.1 mac any

Configuring a Class Map

These sections describe class map configuration:

•Creating a Class Map, page 42-70

•Class Map Filtering Guidelines and Restrictions, page 42-71

•Configuring Filtering in a Class Map, page 42-71

Creating a Class Map

To create a class map, perform this task:

Command

Purpose

 

 

Router(config)# class-mapclass_name

Creates a class map.

Router(config)# no class-mapclass_name

Deletes a class map.

 

 

 

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

42-70

OL-4266-08

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Cisco Systems OL-4266-08 manual Configuring a Class Map, Creating a Class Map, 42-70
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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.

One of the main features of OL-4266-08 is its emphasis on collaboration foundations, which includes an understanding of voice, video, messaging, and conferencing technologies. Professionals who obtain this certification demonstrate proficiency in deploying, configuring, and troubleshooting Cisco collaboration solutions like Cisco Unified Communications Manager and Cisco Webex. This knowledge is critical as businesses seek to enhance communication and productivity through integrated systems.

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Moreover, the certification aligns with industry standards, ensuring that individuals gain relevant and in-demand skills. Given the evolving landscape of network technologies, OL-4266-08 prepares individuals for future growth and specialization in various areas, including cloud collaboration and Internet of Things (IoT) communications.

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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