Cisco Systems QC-29 manual Traffic Shaping Mechanism Regulates Traffic, QC-33

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Configuring Modular Quality of Service Congestion Management on Cisco IOS XR Software

Information About Configuring QoS Congestion Management on Cisco IOS XR Software

Traffic Shaping

Traffic shaping allows you to control the traffic flow exiting an interface to match its transmission to the speed of the remote target interface and ensure that the traffic conforms to policies contracted for it. Traffic adhering to a particular profile can be shaped to meet downstream requirements, thereby eliminating bottlenecks in topologies with data-rate mismatches.

To match the rate of transmission of data from the source to the target interface, you can limit the transfer of data to one of the following:

•A specific configured rate

•A derived rate based on the level of congestion

The rate of transfer depends on these three components that constitute the token bucket: burst size, mean rate, and time (measurement) interval. The mean rate is equal to the burst size divided by the interval.

When traffic shaping is enabled, the bit rate of the interface does not exceed the mean rate over any integral multiple of the interval. In other words, during every interval, a maximum of burst size can be sent. Within the interval, however, the bit rate may be faster than the mean rate at any given time.

When the exceed burst size (Be) equals 0, the interface sends no more than the burst size every interval, achieving an average rate no higher than the mean rate. However, when the Be size is greater than 0, the interface can send as many as the conform burst size (Bc) plus Be bits in a burst, if in a previous time period the maximum amount was not sent. Whenever less than the burst size is sent during an interval, the remaining number of bits, up to the Be size, can be used to send more than the burst size in a later interval.

Traffic Shaping Mechanism Regulates Traffic

When incoming packets arrive at an interface. The packets are classified using a classification technique, such as use of an access control list (ACL) or setting of the IP Precedence bits through the Modular QoS CLI (MQC). If the packet matches the specified classification, the traffic shaping mechanism continues. Otherwise, no further action is taken.

Cisco IOS XR Modular Quality of Service Configuration Guide

QC-33

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Contents QC-29 Contents QC-31 Congestion Management OverviewModified Deficit Round Robin QC-32 Low-Latency Queueing with Strict Priority QueueingQC-33 Traffic ShapingTraffic Shaping Mechanism Regulates Traffic QC-34 Traffic PolicingQC-35 Traffic Policing Mechanism Regulates TrafficHow a Traffic Policing Mechanism Regulates Traffic QC-36Traffic Shaping Versus Traffic Policing Configuring Guaranteed and Remaining BandwidthsTraffic Shaping Traffic Policing QC-37QC-38 Command or Action PurposeExample QC-39 QC-40 QC-41 QC-42 Configuring Traffic ShapingQC-43 PercentageQC-44 QC-45 Configuring Traffic PolicingQC-46 Set mpls experimental topmost-Sets the EXP valueQC-47 QC-48 RP/0/RP0/CPU0router# show policy-map interface bundle-poS QC-49Standards Related DocumentsMIBs RFCsQC-51 Technical AssistanceDescription Link QC-52

QC-29 specifications

Cisco Systems has long been recognized as a leading provider of networking solutions, and its QC-29 model is a testimony to this legacy. Designed to address the increasing demands for cloud integration, high bandwidth, and low-latency applications, the QC-29 is positioned as an ideal solution for both enterprise and service providers.

One of the standout features of the QC-29 is its robust architecture. Capable of handling extensive data processing, the model incorporates advanced computational power with a focus on efficiency. This architecture enables seamless support for various applications, making it suitable for data-intensive environments. The QC-29 supports multi-tenancy, allowing multiple users to operate independently on a single device, which is essential for modern data centers.

In terms of connectivity, the QC-29 is equipped with various high-speed interfaces. These include multiple 10/25/40/100 Gigabit Ethernet ports that facilitate rapid data transfer between systems, ensuring minimal latency. This connectivity not only enhances data throughput but also improves overall network reliability. The device supports both traditional and emerging protocols, ensuring versatility in deployment scenarios.

A significant technological advancement integrated within the QC-29 is its support for software-defined networking (SDN). This enables organizations to programmatically adjust their network configurations, leading to increased flexibility and optimized resource usage. Furthermore, the QC-29 is compatible with various cloud ecosystems, providing organizations with the ability to leverage cloud-based services efficiently.

Security is another critical characteristic of the QC-29. Cisco has embedded advanced security measures, including end-to-end encryption and network segmentation, ensuring protection against data breaches and cyber threats. As the landscape of cyber threats continues to evolve, these security features help organizations maintain compliance with stringent regulatory requirements.

Management and monitoring of the QC-29 are facilitated through Cisco's robust software tools. With an intuitive interface, IT teams can gain insights into network performance, identify potential issues, and make data-driven decisions quickly. Additionally, automation capabilities streamline operations, making it easier to manage complex networks.

Overall, the Cisco Systems QC-29 stands out due to its cutting-edge features, adaptability, and robust security, making it a valuable asset for organizations aiming to enhance their network infrastructure and meet the demands of the digital landscape.
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