In the last post we have seen how to configure link based IPMP in solaris 11. Let us see how we can configure a probe-based IPMP in solaris 11.
Solaris 11 uses 2 methods for probe-based failure detection
1. Using test addreses (default method)
2. Transitive Probing – No test addresses are used
To enable transitive probing :
# svccfg -s svc:/network/ipmp setprop config/transitive-probing=true # svcadm refresh svc:/network/ipmp:default
To disable transitive probing :
# svccfg -s svc:/network/ipmp setprop config/transitive-probing=false # svcadm refresh svc:/network/ipmp:default
To check the Probing method :
# ipmpstat -p
Active/Active Configuration Example (using test addresses)
The configuration details for the active/active IPMP configuration is as below :
IPMP group name : ipmp0
Active interface : e1000g1 (net1)
e1000g2 (net2)
Data IP address : 192.168.1.10
Test IP address : 192.168.1.11 and 192.168.1.12
Firstly create the IPMP group ipmp0 :
# ipadm create-ipmp ipmp0
Create the 2 interfaces to be added to the IPMP group :
# ipadm create-ip net1 # ipadm create-ip net2
Add the 2 interfaces we just created to the IPMP group.
# ipadm add-ipmp -i net1 -i net2 ipmp0
Assign the test and data addresses to the respective interfaces :
# ipadm create-addr -T static -a 192.168.1.10 ipmp0/data1 # ipadm create-addr -T static -a 192.168.1.11 net1/test1 # ipadm create-addr -T static -a 192.168.1.12 net2/test2
To check the status of the IPMP group :
# ipmpstat -g GROUP GROUPNAME STATE FDT INTERFACES ipmp0 ipmp0 ok 10.00s net2 net1
To check the Data address and interfaces in the IPMP group :
# ipmpstat -an ADDRESS STATE GROUP INBOUND OUTBOUND 192.168.1.10 up ipmp0 net1 net2 net1
To check the individual interfaces status in the
# ipmpstat -i INTERFACE ACTIVE GROUP FLAGS LINK PROBE STATE net2 yes ipmp0 ------- up ok ok net1 yes ipmp0 --mb--- up ok ok
Here m -> the interface is used to send and receive multicast traffic in the IPMP group b -> the interface is used to send and receive broadcast traffic in the IPMP group
# ipmpstat -tn INTERFACE MODE TESTADDR TARGETS net2 multicast 192.168.1.12 192.168.1.101 net1 multicast 192.168.1.11 192.168.1.101
If you observe the 2nd column above, it shows the mode to identify the probe targets in case of a probe based IPMP configuration. Different modes of failure detection are :
routes – system routing table is used to find probe targets.
multicast – multicast ICMP probes are used to find targets.
disabled – probe based failure detection has been disabled.
transitive – transitive probing is used to for failure detection.
And finally verify the configuration in the ifconfig command output.
# ifconfig -a
lo0: flags=2001000849[UP,LOOPBACK,RUNNING,MULTICAST,IPv4,VIRTUAL] mtu 8232 index 1
inet 127.0.0.1 netmask ff000000
net1: flags=9040843[UP,BROADCAST,RUNNING,MULTICAST,DEPRECATED,IPv4,NOFAILOVER] mtu 1500 index 7
inet 192.168.1.11 netmask ffffff00 broadcast 192.168.1.255
groupname ipmp0
ether 0:c:29:12:40:79
net2: flags=9040843[UP,BROADCAST,RUNNING,MULTICAST,DEPRECATED,IPv4,NOFAILOVER] mtu 1500 index 8
inet 192.168.1.12 netmask ffffff00 broadcast 192.168.1.255
groupname ipmp0
ether 0:c:29:12:40:83
ipmp0: flags=8001000843[UP,BROADCAST,RUNNING,MULTICAST,IPv4,IPMP] mtu 1500 index 6
inet 192.168.1.10 netmask ffffff00 broadcast 192.168.1.255
groupname ipmp0
Active/Standby Configuration Example (using test addresses)
In the active/standby probe-based IPMP configuration, we will set net2 as the standby interface. The configuration details for the active/standby IPMP configuration is as below :
IPMP group name : ipmp0 Active interface : e1000g1 (net1) Standby interface : e1000g2 (net2) Data IP address : 192.168.1.10 Test IP address : 192.168.1.11 and 192.168.1.12
Create the 2 interfaces to be added to the IPMP group :
# ipadm create-ipmp ipmp0
Add the 2 interfaces we just created to the IPMP group.
# ipadm create-ip net1 # ipadm create-ip net2
# ipadm add-ipmp -i net1 -i net2 ipmp0
# ipadm create-addr -T static -a 192.168.1.10 ipmp0/data1 # ipadm create-addr -T static -a 192.168.1.11 net1/test1 # ipadm create-addr -T static -a 192.168.1.12 net2/test2
Assign the test and data addresses to the respective interfaces :
# ipadm set-ifprop -p standby=on -m ip net2
To check the status of the IPMP group (observe the net2 interface in ()) :
# ipmpstat -g GROUP GROUPNAME STATE FDT INTERFACES ipmp0 ipmp0 ok 10.00s net1 (net2)
To check the IP address of the IPMP interface (observer that we have only net1 as the outbound interface, contrast to the active/active configuration):
# ipmpstat -an ADDRESS STATE GROUP INBOUND OUTBOUND 192.168.1.10 up ipmp0 net1 net1
To check the status of the individual interfaces :
# ipmpstat -i INTERFACE ACTIVE GROUP FLAGS LINK PROBE STATE net2 no ipmp0 is----- up ok ok net1 yes ipmp0 --mb--- up ok ok
To check the final configuration :
# ifconfig -a
lo0: flags=2001000849[UP,LOOPBACK,RUNNING,MULTICAST,IPv4,VIRTUAL] mtu 8232 index 1
inet 127.0.0.1 netmask ff000000
net1: flags=9040843[UP,BROADCAST,RUNNING,MULTICAST,DEPRECATED,IPv4,NOFAILOVER] mtu 1500 index 10
inet 192.168.1.11 netmask ffffff00 broadcast 192.168.1.255
groupname ipmp0
ether 0:c:29:12:40:79
net2: flags=69040843[UP,BROADCAST,RUNNING,MULTICAST,DEPRECATED,IPv4,NOFAILOVER,STANDBY,INACTIVE] mtu 1500 index 11
inet 192.168.1.12 netmask ffffff00 broadcast 192.168.1.255
groupname ipmp0
ether 0:c:29:12:40:83
ipmp0: flags=8001000843[UP,BROADCAST,RUNNING,MULTICAST,IPv4,IPMP] mtu 1500 index 9
inet 192.168.1.10 netmask ffffff00 broadcast 192.168.1.255
groupname ipmp0
Solaris 11 – Link Based IPMP configuration
Solaris 10 – Probe based IPMP
Solaris 10 – Link Based IPMP