f5 firewall load balancing

the background. Then, based on the destination IP address as hash keys (hash key) hash calculation to obtain the same value of the request, are sent to the backend server.11, Source IP and destination IP address hash algorithmWhen NetScaler uses the source IP and destination IP address hash (hash) Load balancing algorithm, NetScaler computes the source IP address and destination IP address information for

For a large web site, load Balancing is an eternal topic. With the rapid development of hardware technology, more and more load balancing hardware devices emerge, such as F5 big-IP, Citrix NetScaler, Radware and so on, although can solve the problem, but its high price is of

Common open source software for load balancing: Nginx, LVS, keepalived Commercial hardware load devices: F5, Netscale 1. LB, LVs introduction lb cluster is a shorthand for load balance clusters, translated into Chinese is load bal

types: ro Roundrobin , which represents a simple pollingSTATIC-RR , which is based on the weightLeastconn , indicating that the minimum number of connections is processed firstSource , which represents the source of the request based IPRI that represents the request based on the URIRl_param that represents the URl parameter according to the requestHDR (name) , which indicates that each HTTP request is locked according to the HTTP request HeaderRdp-cookie (name) , which indicates that each TCP

alternative to preventing any balancers from being associated. b) The GRPC server cluster that is directed to the client by the load balancer informs the load balancer of the load. c) The Load Balancer returns a list of servers to the GRPC client's GRPCLB policy. The GRPCLB policy then creates a sub-channel to the ser

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 load pro

. The hardware and software packaged as an enterprise application solution to sell to customers. The deployment of such applications is simple and the hierarchy is relatively shallow. To ensure reliability, deploy one Weblogic Server on each of the two sets of small machines, using a hardware load balancer like F5 in front of the app service, as shown in.Because the minicomputer and the front

, the user's local computer caches the resolved domain name-to-IP-address mappings. When multiple user computers cache the mapping of a domain name to an IP address, and those users continue to access the Web page under that domain name, this can also result in uneven load distribution for different Web server parts.The possible consequences of a load imbalance are the low

/weight of each back end, and select the backend with the lowest value. If there are multiple back-end conns/weight values with the same minimum, then the weighted polling algorithm is used for them.What is load balancingWe know that the performance of a single server is capped, when the traffic is very large, you need to use multiple servers to provide services together, this is called the cluster.A load b

Load balancing is an eternal topic for a large web site. With the rapid development of hardware technology, more and more load balancing hardware devices emerge, such as F5 Big-ip, Citrix netscaler, Radware, etc., although it can solve the problem, but its high price is ofte

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