Linux之LVS集群DR模型实验

LVS-DR模型实现http负载均衡集群，VIP与DIP/RIP不在同一网络。

不废话原理，网上一堆一堆的。直接上拓扑和配置脚本。

网络拓扑如下：

1.DR配置脚本：

 1 #!/bin/bash
 2 #
 3 # DR配置脚本
 4 
 5 vip='10.0.0.200'
 6 iface='eth1:0'
 7 mask='255.255.255.255'
 8 port='80'
 9 rs1='172.16.0.101'
10 rs2='172.16.0.102'
11 scheduler='wrr'
12 type='-g'
13 
14 case $1 in
15 start)
16     ifconfig $iface $vip netmask $mask 
17     iptables -F
18  
19     ipvsadm -A -t ${vip}:${port} -s $scheduler
20     ipvsadm -a -t ${vip}:${port} -r ${rs1} $type -w 1
21     ipvsadm -a -t ${vip}:${port} -r ${rs2} $type -w 1
22     echo "The VS Server is Ready!"
23     ;;
24 stop)
25     ipvsadm -C
26     ifconfig $iface down
27     echo "The VS Server is Canceled!"
28     ;;
29 *)
30     echo "Usage: $(basename $0) start|stop"
31     exit 1
32     ;;
33 esac

2.RS配置脚本：

 1 #!/bin/bash
 2 #
 3 #RS配置脚本
 4 
 5 vip=10.0.0.200
 6 mask='255.255.255.255'
 7 dev=lo:1
 8 case $1 in
 9 start)
10     echo 1 > /proc/sys/net/ipv4/conf/all/arp_ignore
11     echo 1 > /proc/sys/net/ipv4/conf/lo/arp_ignore
12     echo 2 > /proc/sys/net/ipv4/conf/all/arp_announce
13     echo 2 > /proc/sys/net/ipv4/conf/lo/arp_announce
14     ifconfig $dev $vip netmask $mask 
15     echo "The RS Server is Ready!"
16     ;;
17 stop)
18     ifconfig $dev down
19     echo 0 > /proc/sys/net/ipv4/conf/all/arp_ignore
20     echo 0 > /proc/sys/net/ipv4/conf/lo/arp_ignore
21     echo 0 > /proc/sys/net/ipv4/conf/all/arp_announce
22     echo 0 > /proc/sys/net/ipv4/conf/lo/arp_announce
23     echo "The RS Server is Canceled!"
24     ;;
25 *) 
26     echo "Usage: $(basename $0) start|stop"
27     exit 1
28     ;;
29 esac

 3.实验结果

1 [root@client ~]#curl 10.0.0.200
2 RS_1
3 [root@client ~]#curl 10.0.0.200
4 RS_2
5 [root@client ~]#curl 10.0.0.200
6 RS_1
7 [root@client ~]#curl 10.0.0.200
8 RS_2
9 [root@client ~]#