Manuals / Cisco Systems / Computer Equipment / Network Router

Cisco Systems OL-4266-08 manual Configuring the Transmit-Queue Size Ratio, 42-111

Models: OL-4266-08

1 124
Download 124 pages 34.88 Kb
Page 111
Image 111

Chapter 42 Configuring PFC QoS

Configuring PFC QoS

Configuring the Transmit-Queue Size Ratio

To configure the transmit-queue size ratio, perform this task:

 

Command

Purpose

Step 1

 

 

Router(config)# interface type1 slot/port

Selects the interface to configure.

Step 2

 

 

Router(config-if)#wrr-queue queue-limit

Configures the queue size ratio between transmit queues.

 

low_priority_queue_weight

 

 

 

[intermediate_priority_queue_weights]

 

 

 

high_priority_queue_weight

 

 

Step 3

 

 

Router(config-if)#priority-queue queue-limit

Configures the strict priority queue size.

 

strict_priority_queue_weight

Note

Not supported on all switching modules.

 

 

Step 4

 

 

Router(config-if)# end

Exits configuration mode.

Step 5

 

 

Router# show queueing interface type1 slot/port

Verifies the configuration.

 

 

 

 

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

When configuring the transmit-queue size ratio between transmit queues, note the following information:

•The wrr-queuequeue-limitcommand is not supported on 2q2t and 1p3q1t ports.

•For ports that have an egress strict priority queue:

–With Release 12.2(18)SXF2 and later releases, you can enter the priority-queuequeue-limitinterface command to set the size of the egress strict priority queue on these switching modules:

—WS-X6502-10GE (1p2q1t) —WS-X6148A-GE-TX (1p3q8t) —WS-X6148-RJ-45 (1p3q8t) —WS-X6148-FE-SFP (1p3q8t) —WS-X6748-SFP (1p3q8t) —WS-X6724-SFP (1p3q8t) —WS-X6748-GE-TX (1p3q8t) —WS-X6704-10GE (1p7q4t) —WS-SUP32-10GE-3B (1p3q8t) —WS-SUP32-GE-3B (1p3q8t) —WS-X6708-10GE (1p7q4t)

–With releases earlier than Release 12.2(18)SXF2 and for other modules, PFC QoS sets the egress strict-priority queue size equal to the high-priority queue size.

•Estimate the mix of low priority-to-high priority traffic on your network (for example, 80 percent low-priority traffic and 20 percent high-priority traffic).

•Use the estimated percentages as queue weights.

•You must enter weights for all the standard transmit queues on the interface (2, 3, or 7 weights).

•Valid values are from 1 to 100 percent, except on 1p2q1t egress LAN ports, where valid values for the high priority queue are from 5 to 100 percent.

 

 

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

 

 

 

 

 

 

OL-4266-08

 

 

42-111

 

 

 

 

 

Page 110 Page 112
Page 111
Image 111
Cisco Systems OL-4266-08 Configuring the Transmit-Queue Size Ratio, Configures the strict priority queue size, 42-111
Page 110 Page 112

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.

Technologically, OL-4266-08 covers a wide array of essential concepts, including IP telephony, voicemail, and collaborative tools. Candidates learn about the architecture of unified collaboration systems, involving integration with routing and switching networks. Additionally, it delves into security protocols to ensure secure transmissions of voice and video data, thereby protecting sensitive corporate communication.

In terms of characteristics, OL-4266-08 is designed to be both comprehensive and practical. The certification emphasizes hands-on experience, which is essential for understanding real-world applications of Cisco technologies. The coursework provides extensive exposure to simulations and labs that mimic actual network environments. This hands-on approach enables candidates to troubleshoot issues effectively using Cisco's troubleshooting tools and methodologies.

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.