The virtual network and virtual switch devices support link status updates to the network stack. By default, a virtual network device reports the status of its virtual link (its LDC to the virtual switch). This configuration is enabled by default and does not require you to perform additional configuration steps.
Sometimes detecting physical network link state changes might be necessary. For instance, if a physical device has been assigned to a virtual switch, even if the link from a virtual network device to its virtual switch device is up, the physical network link from the service domain to the external network might be down. In such a case, you might need to obtain and report the physical link status to the virtual network device and its stack.
You can use the linkprop=phys-state option to configure physical link state tracking for virtual network devices as well as for virtual switch devices. When this option is enabled, the virtual device (virtual network or virtual switch) reports its link state based on the physical link state while it is created as an interface in the domain. You can use standard Oracle Solaris network administration commands such as dladm and ifconfig to check the link status. In addition, the link status is also logged in the /var/adm/messages file.
For Oracle Solaris 10, see the dladm(1M) and ifconfig(1M) man pages. For Oracle Solaris 11, see the dladm(1M), ipadm(1M), and ipmpstat(1M) man pages.
This procedure shows how to enable physical link status updates for virtual network devices.
You can also enable physical link status updates for a virtual switch device by following similar steps and specifying the linkprop=phys-state option to the ldm add-vsw and ldm set-vsw commands.
For Oracle Solaris 11.3, see Chapter 1, About Using Rights to Control Users and Processes, in Securing Users and Processes in Oracle Solaris 11.3 .
You can enable physical link status updates for a virtual network device in the following ways:
Create a virtual network device by specifying linkprop=phys-state when running the ldm add-vnet command.
Specifying the linkprop=phys-state option configures the virtual network device to obtain physical link state updates and report them to the stack.
primary# ldm add-vnet linkprop=phys-state if-name vswitch-name domain-name
The following example enables physical link status updates for ldom1_vnet0 connected to primary-vsw0 on the logical domain ldom1:
primary# ldm add-vnet linkprop=phys-state ldom1_vnet0 primary-vsw0 ldom1
Modify an existing virtual network device by specifying linkprop=phys-state when running the ldm set-vnet command.
primary# ldm set-vnet linkprop=phys-state if-name domain-name
The following example enables physical link status updates for vnet0 on the logical domain ldom1:
primary# ldm set-vnet linkprop=phys-state ldom1_vnet0 ldom1
To disable physical link state updates, specify linkprop= by running the ldm set-vnet command.
The following example disables physical link status updates for ldom1_vnet0 on the logical domain ldom1:
primary# ldm set-vnet linkprop= ldom1_vnet0 ldom1
The following examples show how to configure link-based IPMP both with and without enabling physical link status updates:
The following example configures two virtual network devices on a domain. Each virtual network device is connected to a separate virtual switch device on the service domain to use link-based IPMP.
The following commands add the virtual network devices to the domain. Note that because linkprop=phys-state is not specified, only the link to the virtual switch is monitored for state changes.
primary# ldm add-vnet ldom1_vnet0 primary-vsw0 ldom1 primary# ldm add-vnet ldom1_vnet1 primary-vsw1 ldom1
The following commands configure the virtual network devices on the guest domain and assign them to an IPMP group. Note that test addresses are not configured on these virtual network devices because link-based failure detection is being used.
Oracle Solaris 10 OS: Use the ifconfig command.
# ifconfig vnet0 plumb # ifconfig vnet1 plumb # ifconfig vnet0 group ipmp0 # ifconfig vnet1 group ipmp0
The second and third commands configure the ipmp0 interface with the IP address, as appropriate.
Oracle Solaris 11 OS: Use the ipadm command.
Note that net0 and net1 are the Oracle Solaris 11 vanity names for vnet0 and vnet1, respectively.
# ipadm create-ip net0 # ipadm create-ip net1 # ipadm create-ipmp ipmp0 # ipadm add-ipmp -i net0 -i net1 ipmp0
The following example configures two virtual network devices on a domain. Each domain is connected to a separate virtual switch device on the service domain to use link-based IPMP. The virtual network devices are also configured to obtain physical link state updates.
primary# ldm add-vnet linkprop=phys-state ldom1_vnet0 primary-vsw0 ldom1 primary# ldm add-vnet linkprop=phys-state ldom1_vnet1 primary-vsw1 ldom1
The following commands create the virtual network devices and assign them to an IPMP group:
Oracle Solaris 10 OS: Use the ifconfig command.
# ifconfig vnet0 plumb # ifconfig vnet1 plumb # ifconfig vnet0 192.168.1.1/24 up # ifconfig vnet1 192.168.1.2/24 up # ifconfig vnet0 group ipmp0 # ifconfig vnet1 group ipmp0
Oracle Solaris 11 OS: Use the ipadm command.
Note that net0 and net1 are the vanity names for vnet0 and vnet1, respectively.
# ipadm create-ip net0 # ipadm create-ip net1 # ipadm create-ipmp ipmp0 # ipadm add-ipmp -i net0 -i net1 ipmp0 # ipadm create-addr -T static -a 192.168.1.1/24 ipmp0/v4addr1 # ipadm create-addr -T static -a 192.168.1.2/24 ipmp0/v4addr2