qos ppt

release the Qdisc root lock, invokes Dev_hard_start_xmit to send SKB by driver, and then judges the return value, and if it is NETDEV_TX_OK, returns QDISC_ Qlen qdisc Queue Length; if it is netdev_tx_locked, there is a lock exception, which is not discussed here; if Netdev_tx_busy is returned, invoke DEV_REQUEUE_SKB to re-enter the queue Traffic control also supports controlling the package, which invokes NETIF_RECEIVE_SKB for the package, which invokes handle_ing. Handle_ing first to determin

QOS configuration of the S9300 port of the Huawei S9300 switch the queue scheduling mechanism. Each physical port has eight sending queues. The queue 7 has the highest priority, and the queue 0 has the lowest priority. The sending port supports PQ, WRR, and DRR scheduling methods, and hybrid scheduling of PQ + WRR and PQ + DRR. When www.2cto.com is used for hybrid scheduling, packets in the PQ queue are first scheduled. The highest priority queue is f

From: http://yfydz.cublog.cn 0. Summary QoS is currently a hot topic in network technology. This article will discuss some underlying technologies for QoS implementation. 1. Overview QoS (Quality of Service) is used to describe the service quality and data priority of the network. In the early days of Internet connection All types of data are equal, and network

Vswitch QoS application configuration: control your speed and bandwidth, master the following knowledge about vswitch QoS application configuration, you can easily select your preferred vswitch QoS application configuration method to back up the Cisco router. Many methods will make you suddenly enlightened. For network users, network communication speed and netwo

This article describes the design and implementation of QoS support in Linux 2.4.x kernel, and detailed analysis of the default packet scheduling mechanism pfifo. In traditional TCP/IP routers, all IP data packets are transmitted using a FIFO (first-in-first-out) mechanism. In the early days when the network data volume and key business data volume were not large, the router simply discards the data to deal with congestion. However, with the developm

(I searched for a circle and did not find the Chinese Gargoyle Router and Its QoS Operation Experience, tutorials or other materials. So I went to the Gargoyle Wiki and took some notes, some of the following content is my understanding of the Gargoyle Royle QoS, and some limitations may only be reflected in the Gargoyle Router .) QoS is short for Quality of Servi

In traditional IP networks, each forwarding node treats all packets equally, and uses the first-in-first-out policy to send the packets to the destination, it cannot guarantee the reliability, transmission latency, and other performance of message transmission. In the broadband network environment supported by multiple businesses, different types of businesses have different network performance requirements. customer-centric, meeting the service quality at different levels is a major feature o

Video applications are highly time-sensitive and require high real-time performance and service quality management (QoS). However, many applications on the Internet are mostly "best effort data ". The most effort data is characterized by a burstable nature, which seriously affects applications with extremely high time sensitivity. This increases the latency of these applications and causes jitter at the same time, resulting in serious consequences. IP

QoS Assurance Measures for VoIP services are currently the topic most discussed in the industry. IETFInternet Engineering Task Force) several technical solutions to support QoS are recommended, mainly including: Integrated Service Int-serv) /Resource Reservation Protocol (RSVP), Differentiated Services (DiffServ), Multi-Protocol Label Switching (MPLS), and business Traffic Engineering (Traffic Engineering.

"Editor's words" kubernetes as the current mainstream container cluster management platform, the need for overall co-ordination of platform resource use, fair and reasonable allocation of resources to the relevant pod containers to use, and to ensure that the container life cycle has sufficient resources to ensure its operation. At the same time, due to the exclusive nature of resources, that is, resources have been allocated to a container, the same resources are not allocated to other containe

ISP QoS Lab650) this.width=650; "title=" image "style=" border-top:0px;border-right:0px;background-image:none;border-bottom:0 px;padding-top:0px;padding-left:0px;margin:0px;border-left:0px;padding-right:0px; "border=" 0 "alt=" image "src=" Http://s3.51cto.com/wyfs02/M02/75/04/wKiom1YwhyXhwcNrAACJDrPvjuI369.jpg "height=" 235 "/>1-pqThe priority queue (Pq,priority queue) has a high, medium, normal, low priority four queues. Data packageAccording to the

There is a new project "QoS policy" in the construction---storage workspace. 650) this.width=650; "title=" image "style=" border-top:0px; border-right:0px; border-bottom:0px; border-left:0px; Display:inline "border=" 0 "alt=" image "src=" http://s3.51cto.com/wyfs02/M01/79/09/ Wkiol1afsqcbfhdvaaearry03a4602.png "" 644 "height=" 355 "/> The TechNet article says: "End-to-end storage quality of Service (QoS): W

In enterprise-level routing settings, we often encounter the IP QoS function configuration, so in order to let everyone better understand the configuration process, the following is an example of TL-R480T. After the R480T software is upgraded, the following content is added ": The QoS Set interface is described as follows: QoS Set has two parameters: "upstream ba

When setting up a router, most will use the security mechanism of the router, also often said the QoS function, the QoS function can protect the entire network security, this article takes you to understand its concrete principle and the work way. One, the QoS is used to solve the bandwidth to solve the problem of network latency and congestion, such as a techno

Recently in the QoS, see an article, good. =========================================== A detailed analysis of flow classification for IP QoS[Url]www.net130.com[/url] Date: 2007-11-18 views: 3337Source: Blog.sina.com.cn/stimwoo Last and colleagues discussed the priority of QoS traffic and protocol traffic. Later found this article. Special forwarding.In RFC 791,

Note: Each interface supports only one policy, and one policy can be used for multiple interfaces. Therefore, the download rate limit for the network segment under the port should be defined in the same policy 1. Start QoS on the switch Switch (config) #mls QoS//Start QoS on the switch 2. Define Access Control List Switch (config) #access-list permit 59.215.4

Quality of Service (QoS)1: on the Internet or other networks, Quality of Service (QoS) indicates that the transmission rate, error rate, and other characteristics of the network can be measured and improved, and to some extent, advance assurance. QoS of the networks that transmit video and multimedia information is particularly concerned.With the Internet Resourc

An important task for Internet cafe network administrators is to ensure that the Network of each computer is normal, which requires the network administrators to master how to set qos for Internet cafe routers. In order to let everyone better understand the configuration process, the following small series will explain some key content analysis on the qos setting interface of the Internet cafe router. The

Application VoIP service quality (QoS) has four key steps: Application VoIP service quality (QoS) has four key steps. If you do not follow these four steps, your VoIP implementation will not realize its full potential. In addition to enabling the vro function, QoS has many things to do. Therefore, it takes some time for you to plan and design the correct

QoS is called "Quality of Service" in English, and its Chinese name is "service quality ". QoS is a qualitative Convention on Information Transmission and sharing between users on the network and between users on the network. For example, the transmission delay allowed time, minimum transmission image distortion, and audio-video synchronization, it is a technology used to solve network latency and congestio