cisco server load balancing

First, the main technology of load balancing 1, Cisco Ethernet Channel (Network balance) 2, WINDOWSNLB Technology 3, Linuxlvs Technology 4, F5 and other load balancer (service balance) Second, redundancy technology 1, CSICOHSRP Hot backup route 2. Windows cluster Technology 3. Linuxha Cluster Technology 4. Ibm

I. NLB test environmentSet up an NLB experiment environment as shown in 1. The computer Server is a domain controller and DNS Server, the client and client2 are member servers, and the domain name is ittongluren.com. The IP address of all computer gateways is 192.168.0.1, and the preferred IP address of the DNS server is 192.168.0.2. 2nd NICs are installed on the

For bonding network load balancing, we often use it on the file server. For example, we use three NICs as one to solve the problem of an IP address, heavy traffic, and heavy network pressure on the server. For file servers, such as NFS or Samba file servers, no administrator can solve the network

server states can be logged in only one int. If the number of servers is greater than 32, you need to request memory in the memory pool to store. Use of this bitmap array can refer to the following code: Finally, the actual policy code, logic is very simple, code implementation is only 30 lines, directly on the code. 2.2. IP Hash IP Hash is another nginx built-in load-

greatly affected. Because the picture is on the physical hard disk, access to the picture requires frequent I/O operations, so when the number of concurrent users is more and more, I/O operations will become the overall system performance bottlenecks. This time we will consider the image information distributed storage. Here is an idea for a medium sized business web site for a distributed dynamic storage of picture data and a load-

This blog reposted from: http://blog.csdn.net/u014649204/article/details/25115039 The design of the balancing algorithm directly determines the performance of the cluster in load balancing. Poor design of the algorithm will lead to load imbalance in the cluster. The main task of the general

the policy, add the Snat policy, the source interface is the intranet port, the service pool references the service pool created in the previous step, the rest defaults, and the policy is started after completion.Port mappings:1, create service pool, type Select server, fill in the server IP, port to be mapped2, add the policy, the type is Dnat policy, the source address is 0 destination address for the ex

First, HAProxyHardware-based load balancing devices: F5,BIG-IP, etc.Software-based load balancing products: Haproxy,lvs,nginx, etc.In the software load balancing product, it is divided into system-based soft

strategy from the point of view of source, take the actual industrial production as a case, compare each load balance strategy, provide reference for Nginx users. In this section, we'll talk about the problems encountered after using Nginx load Balancing: Session problem file upload download Typically, server

Nginx/lvs/haproxy is currently the most widely used three load balancing software, I have been implemented in a number of projects, reference to some information, combined with some of their own experience, summed up.The general use of load balancing is to use different technologies depending on the stage of the site's

1. Cluster 1.1 definition:is a set of independent computer systems that form a loosely coupled multiprocessor system that communicates between processes over a network. Applications can deliver messages over network shared memory for distributed computers.is a group of connected computers, from the outside it is a system, each node can be a different operating system or computer composed of different hardware. A cluster that provides Web services is a large Web

XX Telecom used a single load balancing, 2 VPDN routers to do load balancing, its topology is as follows: Load balancing equipment divided into 2 network segments, deployed in a serial connection, the top 2 7610 routers, the ne

From: http://hi.baidu.com/_kouu/item/479891211a84e3c9a5275ad9 In an SMP (symmetric multi-processor) Environment, each CPU corresponds to a run_queue (executable Queue ). If a process is in the task_running state (executable State), it will be added to one of the run_queue (and will only be added to one run_queue at the same time ), so that the scheduler can schedule it to run on the CPU corresponding to run_queue.A cpu corresponds to a run_queue design, which has the following advantages:1. A pr

Linux Kernel soft RPS implements load balancing and distribution for network reception soft interruptions, linuxrpsRoutine Linux Soft Interrupt distribution mechanism and problematic Linux interrupt are divided into the upper and lower half. Generally (this is true), the interrupted CPU executes the interrupt processing function, the Soft Interrupt (lower half) is triggered on the current CPU. After the har

The advantages of Nginx:Good performance, can load more than 10,000 of the concurrency.Many functions, in addition to load balancing, can be used as a Web server, but also through the GEO module to achieve traffic distribution.Community active, third-party patches and modules manySupport for Gzip ProxyDisadvantages:Ses

Understanding of Nginx Load BalancingNginx is a lightweight, high-performance webserver, he can mainly do the following two things:As an HTTP server (as with Apache)Load balancing as a reverse proxy serverNow Nginx everywhere can be seen, often see the page after the outage will show Nginx words, which also shows that

servers is less than 32, all server states can be logged in only one int. If the number of servers is greater than 32, you need to request memory in the memory pool to store. Use of this bitmap array can refer to the following code: Finally, the actual policy code, logic is very simple, code implementation is only 30 lines, directly on the code. 2.2. IP Hash IP Hash is another nginx built-in load-