thanks for relay!
if i only use ha+lvs configuration of keepalived.the load balance not work.
then,i install ipvsadm and setup lvs with tun by ipvsadm ,it's work.

command line below:
ipvsadm -A -t 172.16.39.100:80 -s rr
ipvsadm -a -t 172.16.39.100:80 -r 172.16.39.30:80 -i
ipvsadm -a -t 172.16.39.100:80 -r 172.16.39.40:80 -i

-------------------------------------------------------------lb server (master) keepalived.conf--------------------------------------------
global_defs {
    router_id LVS_DEVEL_M
}

vrrp_instance websev {
    state MASTER
    interface eth0
    virtual_router_id 51
    priority 100
    advert_int 1

    authentication {
        auth_type PASS
        auth_pass 1111
    }

    virtual_ipaddress {
        172.16.39.100
    }
}

virtual_server 172.16.39.100 80 {
    delay_loop 6
    lb_algo rr
    lb_kind TUN
    persistence_timeout 10
    protocol TCP

    real_server 172.16.39.30 80 {
        weight 1
        TCP_CHECK {
            connect_timeout 3
            nb_get_retry 3
            delay_before_retry 3
        }
    }
    real_server 172.16.39.40 80 {
        weight 1
        TCP_CHECK {
            connect_timeout 3
            nb_get_retry 3
            delay_before_retry 3
        }
    }
}
---------------------------------------------------------------real server 1 command ------------------------------------------------------------------
   ifconfig tunl0 172.16.39.100 netmask 255.255.255.0 up
   route add -host 172.16.39.100 dev tunl0
   echo "1" >/proc/sys/net/ipv4/conf/tunl0/arp_ignore
   echo "2" >/proc/sys/net/ipv4/conf/tunl0/arp_announce
   echo "1" >/proc/sys/net/ipv4/conf/all/arp_ignore
   echo "2" >/proc/sys/net/ipv4/conf/all/arp_announce
   sysctl -p
--------------------------------------------------------------------------------------------------------------------------------------------------

2011/3/8 Steve Barnes <steve@echo.id.au>

> all!
> if i want to use lvs function of keepalived , i must install ipvsadm ?
> tks!

> _______________________________________________
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>

[steve@mail ~]$ yum provides '*/ipvsadm'
Loaded plugins: fastestmirror
addons | 951 B
00:00
base | 2.1 kB
00:00
extras | 2.1 kB
00:00
updates | 1.9 kB
00:00
ipvsadm-1.24-10.x86_64 : Utility to administer the Linux Virtual Server
Repo : base
Matched from:
Filename : /etc/rc.d/init.d/ipvsadm
Filename : /sbin/ipvsadm

I use keepalived/lvs. Yes, you need to install it. Otherwise, there's no way for you to manage the lvs function?

At least, that's what I've been led to believe...

Cheers

Steve

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