Sun's Internet Protical Multi Pathing (IPMP)[edit]
Here is a example of how to set up two nic's in a IPMP failover pair with a floating address. This group 'vlan23' will use probe based failure detection.
First we set up the hosts table '/etc/hosts' here we define the hostnames and ip addresses of the servers network interfaces (bge0 and hme0)
# # Internet host table # ::1 localhost 127.0.0.1 localhost 10.23.23.5 host23-pirmary 10.23.23.17 host23-standby 10.23.23.23 host23 loghost
We also want the define the default netmask for the ip addresses used.
host23:~# cat /etc/netmasks # # network-number netmask 10.23.23.0 255.255.225.0
Now we configure the network interfaces:
The first one bge0 '/etc/hostname.bge0 ' will be the default interface for the floating ip
host23-pirmary group VLAN23 deprecated -failover up \ addif host23 failover up \
The second one hme0 '/etc/hostname.hme0' is the standby interface for the floating ip.
host23-standby group VLAN23 deprecated -failover standby up
After setting this up restart the server (or more likely just networking) and you will end up with your interfaces look like this.
'ifconfig -a'
lo0: ...
bge0: flags=9040843<UP,BROADCAST,RUNNING,MULTICAST,DEPRECATED,IPv4,NOFAILOVER> mtu 1500 index 2
inet 10.23.23.5 netmask ffffff00 broadcast 10.23.23.255
groupname VLAN23
ether 0:14:2:3:2:3a
bge0:1: flags=1000843<UP,BROADCAST,RUNNING,MULTICAST,IPv4> mtu 1500 index 2
inet 10.23.23.23 netmask ffffff00 broadcast 10.23.23.255
hme0: flags=69040843<UP,BROADCAST,RUNNING,MULTICAST,DEPRECATED,IPv4,NOFAILOVER,STANDBY,INACTIVE> mtu 1500 index 3
inet 10.23.23.17 netmask ffffff00 broadcast 10.23.23.255
groupname VLAN23
ether 0:14:2:3:2:3b