lg tc

, b)); } return 0;} voidBuildintXintLintR) {L (x)= L,r (x) =R; if(L = =R) {sum (x)=A[l]; return ; } intMID = L + R >>1; Build (x1, L,mid); Build (x1|1, Mid +1, R); SUM (x)= SUM (x 1) + SUM (x 1|1);}voidSpreadintx) { if(Lazy (x)) {sum (x1) + = lazy (x) * (R (x 1)-L (x 1) +1); SUM (x1|1) + = lazy (x) * (R (x 1|1)-L (x 1|1) +1); Lazy (x1) +=lazy (x); Lazy (x1|1) +=lazy (x); Lazy (x)=0; }}voidChangeintXintLintRintDelta) { if(L r (x)) {sum (x)+ = Delta * (r (x)-L (x) +1); Lazy (x)+=Del

package) brush opportunity to continue.Restart your phoneAfter the completion of the brush machine may need to manually restart the phone, in FastBoot mode with the volume key to select.Because the original system image is being brushed in, the boot setting will boot to Google services. So unplug the SIM card first and skip the boot setup.OtherIf the brush fails, under normal circumstances if you can enter the FastBoot mode, brush into the recovery.img and then re-brush the machine;The easiest

　　Phenomenon Android phones can't send and receive MMS 　　Solve 1. Mobile phone support MMS function, but need network operator support can be used (mobile cards need to open MMS business). 2. If it has been opened, it is recommended to check whether the mobile phone can access the Internet, the proposed menu "settings" Wireless and network mobile network has enabled the data checked to open the Internet function attempt. 3. If the Internet is normal, may accept MMS file too large, it is rec

service (ToS.RedRed is short for Random Early Detection (Random Early Detection. If this qdisc is used, when the bandwidth usage is close to the specified bandwidth, the system will randomly discard some data packets. It is ideal for high-bandwidth applications.SFQSFQ is short for Stochastic fairness queueing. It sorts the traffic by session (Session-corresponding to each TCP connection or UDP stream) and sends packets for each session cyclically.TBFTBF is short for token bucket filter and is s

Original from: http://blog.chinaunix.net/u/9284/showart.php?id=220696 use TC for flow control (Qos) (2006-12-13) Kang Daoyu Objective: I see the network on the Linux system flow control article a lot of not practical, even if the reference can not quickly write traffic control rules, and there are many errors. I have also written an article, is a lot of web sites cited, thanks to my support, I put an example to write out for everyone to reference

As we all know, at the beginning of the birth of the Internet are all universities and research institutions communicate with each other, and there is no Linux traffic control considerations and design, the principle of IP protocol is as good as possible for all data flow services, different data flow is equal. However, years of practice have shown that this principle is not ideal, and some data streams should be given special care, for example, the interactive data stream of Telnet should have

According to many documents of TC, I have also compiled a configuration record. In actual use, the effect is good. I would like to share it with you for your reference.Environment: the local area network is not large enough to support more than 40 machines. Nat Internet sharing (Intranet: eth0 Internet: eth2)CBQ uses the idle time of hardware to calculate the queue. The hardware is different and the effect is different. It is better to use htb for a l

　　[It168]As we all know, at the beginning of the Internet, colleges and research institutions communicate with each other, and there is no consideration or design for network traffic control. The principle of IP protocol is to serve all data streams as well as possible, different data streams are equal. However, many years of practice show that this principle is not the most ideal, and some data streams should be taken special care of. For example, interactive data streams with remote logon shou

TC for flow control, and give several representative examples. I. Related Concepts Packet packets from the input network card (portal) received, through the routing of the lookup, to determine whether it is sent to the machine, or need to forward. If it is sent to the local, directly forward to the upper level of the protocol, such as TCP, if it is forwarded, will be issued from the Output network card (export). The control of network traffic usually

TC is the abbreviation of Linux traffic control, the principle is that when the protocol stack out of the packet, through the Qdisc (Queue discipline) and filter mechanism to the different rules of the definition of the exile to the different class Qdisc (for classful Qdisc is so, for classless Qdisc only one root qdisc). There are a lot of data on TC on the Internet, this article does not discuss the use o

A: Overview:The flow controller (TC) in a Linux system is mainly to establish a queue at the output port for flow control.TC is a tool that can classify a packet according to its characteristics, and can provide different bandwidths for various types of data, thus controlling their transmission speed. TC is part of the IPROUTE2, integrated in the 2.2 and above versions of the kernel, and can also work with

You need to control the traffic of the gateway, control the IP address and network segment, and use iptables to implement the traffic. You may also have the server for the Intranet and Internet, and the rules are easy to understand. The following is a shell script, not in iptables mode: #! /Bin/bash # Set the following values to somewhat less than your actual download # And uplink speed. In kilobits. Also set the device that is to be shaped. # INGOING traffic (gateway) IN = eth0 # What ip do you

Tc introduction under linux-Linux Enterprise Application-Linux server application information. The following is a detailed description. Linux supports QOS from kernel 2.1.105. However, you need to recompile the kernel. When running 'make config', set EXPERIMENTAL _ OPTIONS to 'y' and set Class Based Queueing (CBQ), Token Bucket Flow, and Traffic Shapers to 'y ', run 'make dep; make clean; make bzilo' to generate a new kernel. In Linux, the traffic con

network to normal.) The PC is connected to a vswitch and connects multiple servers, including the Video Server 1.1.1.60 that provides external services, the Nat server 1.1.1.56, the company's email server 1.1.1.57, and the testing and monitoring server 1.1.1.58 provide Internet services for employees. About Tc (Traffic Control ): TC has been added to the kernel since the Linux kernel and becomes a service

I. INTRODUCTION of TC PrincipleThe Traffic controller TC (traffic control) in the Linux operating system is used for the traffic control of the Linux kernel, mainly by establishing a queue at the output port for traffic control.The fundamentals of Linux traffic control are as shown.When the receiving packet comes in from the input interface (inputs Interface), the traffic limit (ingress policing) discards t

I. INTRODUCTION of TC PrincipleThe Traffic controller TC (traffic control) in the Linux operating system is used for the traffic control of the Linux kernel, mainly by establishing a queue at the output port for traffic control.The fundamentals of Linux traffic control are as shown.When the receiving packet comes in from the input interface (inputs Interface), the traffic limit (ingress policing) discards t

Recently have a colleague with BT and electric donkey crazy download, we hit CS on the internet has been greatly affected, so the NAT Internet to do a flow control, will be a bit of experience to introduce to netizens, I hope to help the CS fans. Our Internet environment is as follows: eth0 External Network Ip:a.b.c.d Eth1 intranet IP1:192.168.0.0/24 to Boss and BT Eth2 intranet ip2:192.168.1.0/24 to me and Csfans Use Linux to do the NAT command as follows: Echo 1 >; /proc/sys/net/ipv4/ip_forwar

Many small and medium-sized enterprises server access bandwidth is often only 10Mbps usually servers also run other services, such as the DNS service, when the site is large and many people download at the same time, the bandwidth is easily exhausted, resulting in server delay increase or drop packets. How do I limit the speed of 80 ports and ensure that other services work?You can use the TC command to adjust restrictions on the ports and servers spe

Data Packet Classification and scheduling-another explanation of Linux TC-linuxtcIf you understand the Linux TC framework from the perspective of layered recursion, it is easy to classify queues into class queues and class-free queues. In this perspective, the status of a queue is equal to that of a queue. But in fact, there is a hierarchical relationship between them. The reason for dividing it into a clas

Use linux as the nat service, and use tc to limit traffic-Linux Enterprise Application-Linux server application information. For details, refer to the following section. Recently, some colleagues used bt and e for crazy download. We were greatly affected when playing cs on the Internet, so we made traffic control on nat and introduced some experience to netizens, hope to help cs fans. The Internet environment is as follows: Eth0 Internet ip Address: a