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BalanceNG V3: IPv6 SLB (Server Load-Balancing) in DSR Mode with agent feedback
This example is a variation of Example 11, the configuration differences are shown in bold below.
The BalanceNG agent "bngagent" needs to be started on both target servers before as follows:
The IPv6 configuration and loopback alias is setup in /etc/network/interfaces on the
Debian based target servers as follows:
IPv6 configuration in /etc/network/interfaces on Target 1
iface eth0 inet6 static
address 2001:DB8::1:1
netmask 32
iface lo inet6 static
address 2001:db8::2:4
netmask 128
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IPv6 configuration in /etc/network/interfaces on Target 2
iface eth0 inet6 static
address 2001:DB8::1:2
netmask 32
iface lo inet6 static
address 2001:db8::2:4
netmask 128
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The VRRP Master Configuration File
// configuration taken Mon Aug 16 16:34:46 2010
// BalanceNG 3.320 (created 2010/08/16)
license TESTA 39ed5ff716d8a118a7c61f777cbb0446
modules vrrp,arp,ping,hc,master,slb
interface 1 {
name eth0
}
register interface 1
enable interface 1
vrrp {
vrid 40
priority 200
network 1
}
network 1 {
addr 10.1.0.0
mask 255.255.0.0
real 10.1.0.1
mask6 32
real6 2001:db8::2:1
virt6 2001:db8::2:3
interface 1
}
register network 1
enable network 1
server 1 {
ipaddr6 2001:db8::2:4
sessionid src+port
port 80
protocol tcp
method rndagent
targets 1,2
}
register server 1
enable server 1
target 1 {
ipaddr6 2001:db8::1:1
port 80
protocol tcp
ping6 3,10
agent6 10000,3,10
dsr enable
}
target 2 {
ipaddr6 2001:db8::1:2
port 80
protocol tcp
ping6 3,10
agent6 10000,3,10
dsr enable
}
register targets 1,2
enable targets 1,2
// end of configuration
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The VRRP Backup Configuration File
// configuration taken Mon Aug 16 16:34:46 2010
// BalanceNG 3.320 (created 2010/08/16)
license TESTB d5b787e61745533a8c5858a3a5f2e855
modules vrrp,arp,ping,hc,master,slb
interface 1 {
name eth0
}
register interface 1
enable interface 1
vrrp {
vrid 40
priority 200
network 1
}
network 1 {
addr 10.1.0.0
mask 255.255.0.0
real 10.1.0.2
mask6 32
real6 2001:db8::2:2
virt6 2001:db8::2:3
interface 1
}
register network 1
enable network 1
server 1 {
ipaddr6 2001:db8::2:4
sessionid src+port
port 80
protocol tcp
method rndagent
targets 1,2
}
register server 1
enable server 1
target 1 {
ipaddr6 2001:db8::1:1
port 80
protocol tcp
ping6 3,10
agent6 10000,3,10
dsr enable
}
target 2 {
ipaddr6 2001:db8::1:2
port 80
protocol tcp
ping6 3,10
agent6 10000,3,10
dsr enable
}
register targets 1,2
enable targets 1,2
// end of configuration
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Testing Dialog in "bng control" Mode
bng# sh vrrp
state MASTER
vrid 40
priority 200
ipaddr0 2001:db8::2:3
ipaddr1 2001:db8::2:4
bng# sh sessions
7 sessions
srv tgt age timeout session-id
--- --- ---- ------- ------------------
1 1 7 600 2001:db8::1:6.46354
1 2 8 600 2001:db8::1:6.46353
1 1 9 600 2001:db8::1:6.46352
1 2 11 600 2001:db8::1:6.46351
1 1 12 600 2001:db8::1:6.46350
1 2 26 600 2001:db8::1:6.46349
1 1 57 600 2001:db8::1:6.46341
bng# show targets
# ipaddr ipaddr6 port prt net net6 srv sessions status info
--- ------ ----------------- --- --- ---- --- -------- ----------- ------------------------
1 n.a. 2001:db8::1:1 80 tcp 0 1 1 0 operational nd6:up,ping6:up,agent6:1
2 n.a. 2001:db8::1:2 80 tcp 0 1 1 0 operational nd6:up,ping6:up,agent6:1
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Please contact us in case of any questions, errors or suggestions
at info@inlab.de.
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