cisco load balancing router

Build Practice lvs+keepalived Load BalancingKeepalived Overview1.keepalived is a powerful auxiliary tool specifically designed for LVS, mainly used to provide failover and health check function-to determine the LVS load Scheduler, node server availability, timely isolation and replacement of the new server, when the failed host to rejoin the cluster after recovery.Overview of the 2.keepalived hot-standby pr

ASA/PIX: Load balancing between two ISP-options VERSION 7 Is it possible to load balance between two ISP links? Does the ASA support PBR (Policy Based Routing )? Does the ASA support secondary IP address on interfaces? What other options do we have? SLA RouteTracking PBR on the router outside the firewall Allowing outb

1. Introduction to Keepalived Keepalived is an important underlying tool that provides HA. Its initial role was to provide HA functions for ipvs and a service software that can provide vrrp health-check functions, it can be used only to provide a floating vip (vrrp virtual routing function), which can easily implement a Hot Standby High Availability function. At the same time, we can also use the LVS + Keepalived architecture based on the complete open source software to provide you with a

4. Fault Tolerance and load balancing for Dubbo2.5.3 clusters and fault tolerance for dubbo Clusters Reprint please from the source: http://www.cnblogs.com/hd3013779515/ 1. Cluster fault tolerance and Load Balancing principles Node relationship: Invoker is an abstraction of the callable Service of Provider. Invoker

variance value must be greater than 2809856. Therefore, set this parameter to 2. Enter the OSPF process R3 (config-router) of R3 # variance 2 and check the route table of R3. 650) this. width = 650; "src =" http://www.bkjia.com/uploads/allimg/131227/021P04327-5.jpg "border =" 0 "alt =" "/> Go2.2.2.0The specified CIDR block already exists.2Route entry InPingPass2.2.2.2After the address, View2.2.2.0 255.255.255.0Detailed information about this route 6

the valid address list will soon be insufficient. In this case, you can use the upper-layer protocol id, for example, you can use the port number field of the transport layer TCP/UDP to create a NAT translation table.Ii. Server Load balancer DNS's Server Load balancer technology mainly uses the round robin algorithm. However, the DNS load technology is hard to s

Chapter 2 Classification of route selection protocols RIP V2 features Basic configuration of RIP v2 RIP v2 implements VLSM Division (Variable Length subnet mask) Summary of CIDR routes implemented by RIP v2 RIP 2 implements load balancing with equal hop paths RIP2 authentication Configuration RIP2 configuration passive interface to suppress route update ~~~~~~~~~~~~~~~~~~~~~~~~~~~ RIP 2 implements

/arp_ignoreecho "2" >/proc/sys/net/ipv4/conf/all/arp_announceRun the above script separately after the browser testAfter refreshFour keepalived +lvs Before we tried the load balancing of the LVS NAT and Dr Two models, keepalived could not only be highly available based on the VRRP (Virtual Router redundancy Protocol) protocol, but he was inherently integrated wit

, you only need to add: Iptables-I RH-Firewall-1-INPUT-d 224.0.0.18-j ACCEPT 2. If you use a script to configure a firewall, add the following rules: Iptables-a output-o eth0-d 224.0.0.18-j ACCEPT iptables-a output-o eth0-s ACCEPT-j ACCEPT iptables-a input-I eth0-d 224.0.0.18-j ACCEPT iptables -a input-I eth0-s 224.0.0.18-j ACCEPT 5. Summary Keepalived implements dual-machine Hot Standby through virtual routing, which is superior to other solutions. Because it is a fixed master-slave Hot

Ieee802.1s is used to resolve excessive spanning tree problems. There are two meanings of configuring pvst+: 1. Using pvst+ to achieve Network Load Balancing 2. Configure the speed port "Enable speed port will save 30S of forwarding time delay"1. Let's do an experiment to verify. First of all, we still build the topology diagram in the virtual machine GNS3, and mark all the parameters that are needed. Such

1. when multiple paths exist at the destination, and the metric values of multiple paths are the same, the equivalent load balancing can be performed, 650) this. width = 650; "src = ".. /attachment/201210/171627301 .jpg" border = "0" alt = "" data-pinit = "registered"/> after completing the configuration, view the neighbor table, topology table, and route table a on R1. neighbors table 650) this. width = 65

Keepalived + HAProxy implements the configuration of MySQL high-availability load balancing, keepalivedhaproxy Keepalived Because mysqlcluster is used in the production environment, high-availability load balancing is required. keepalived + haproxy is provided here. Keepalived is mainly used to implement fault isolatio

follows: [Root @ jw-masterdb network-scripts] # vim ifcfg-eth0. DEVICE = eth0BOOTPROTO = noneONBOOT = yesUSERCTL = noSLAVE = yesMASTER = bond0 Modify ifcfg-eth1 as follows: [Root @ jw-masterdb network-scripts] # vim ifcfg-eth1. DEVICE = eth1BOOTPROTO = noneONBOOT = yesUSERCTL = noMASTER = bond0SLAVE = yes 3. Load the module so that the system supports bonding By default, the kernel supports bonding. You o

follows: DEVICE = eth0BOOTPROTO = noneONBOOT = yesMASTER = bond0 # If no write is performed, step 4 is required.SLAVE = yes # if not written, step 4 is required.USERCTL = yesSimilar repair ifcfg-eth1 is as follows: DEVICE = eth1BOOTPROTO = noneONBOOT = yesMASTER = bond0 # If no write is performed, step 4 is required.SLAVE = yes # if not written, step 4 is required.USERCTL = yes3. Load the module so that the system supports bonding By default, the ker

-slave mode is used for data synchronization. Sqlrelay solves connection pool problems and implements Load Balancing for read/write splitting. Sqlrelay is configured with three instances A/B/C. A is responsible for reading data from Master and slave, B is responsible for writing data, and only writes data to Master. C is the router and is responsible for applicat

load, 1 for multi-network card master standbyThe Miimon is used for link monitoring. For example: miimon=100, then the system every 100MS monitoring link connection status, if one line is not connected to another line; Mode value indicates the mode of operation, he has 0,1,2,3 four modes, commonly used for 0, 12 kinds.The mode=0 indicates that load balancing (ro

LVS Cluster has DR, TUN, Nat three configuration mode, can be the WWW service, FTP services, mail services, such as load balancing, the following through the establishment of the WWW service load Balancing example, the DR mode based on the LVS cluster configuration. I. Configuration of the Director server There are t