Link aggregation only works on full-duplex, point-to-point links that operate at identical speeds. Make sure that the interfaces in your aggregation conform to this requirement.
If you are using a switch in your aggregation topology, make sure that you have done the following on the switch:
Configured the ports to be used as an aggregation
If the switch supports LACP, configured LACP in either active mode or passive mode
Assume the Primary Administrator role, or become superuser.
The Primary Administrator role includes the Primary Administrator profile. To create the role and assign the role to a user, see Chapter 2, Working With the Solaris Management Console (Tasks), in System Administration Guide: Basic Administration.
Determine which interfaces are currently installed on your system.
# dladm show-link |
Determine which interfaces have been plumbed.
# ifconfig -a |
# dladm create-aggr -d interface -d interface [...]key |
Represents the device name of the interface to become part of the aggregation.
Is the number that identifies the aggregation. The lowest key number is 1. Zeroes are not allowed as keys.
For example:
# dladm create-aggr -d bge0 -d bge1 1 |
Configure and plumb the newly created aggregation.
# ifconfig aggrkey plumb IP-address up |
For example:
# ifconfig aggr1 plumb 192.168.84.14 up |
Check the status of the aggregation you just created.
# dladm show-aggr |
You receive the following output:
key: 1 (0x0001) policy: L4 address: 0:3:ba:7:84:5e (auto) device address speed duplex link state bge0 0:3:ba:7:b5:a7 1000 Mbps full up attached bge1 0:3:ba:8:22:3b 0 Mbps unknown down standby |
The output shows that an aggregation with the key of 1 and a policy of L4 was created.
(Optional) Make the IP configuration of the link aggregation persist across reboots.
For link aggregations with IPv4 addresses, create an /etc/hostname.aggrkey file. For IPv6–based link aggregations, create an /etc/hostname6.aggrkey file.
Enter the IPv4 or IPv6 address of the link aggregation into the file.
For example, you would create the following file for the aggregation that is created in this procedure:
# vi /etc/hostname.aggr1 192.168.84.14 |
Perform a reconfiguration boot.
# reboot -- -r |
Verify that the link aggregation configuration you entered in the /etc/hostname.aggrkey file has been configured.
# ifconfig -a . . aggr1: flags=1000843 <UP,BROADCAST,RUNNING,MULTICAST,IPv4> mtu 1500 index 3 inet 192.168.84.14 netmask ff000000 broadcast 192.255.255. |
This example shows the commands that are used to create a link aggregation with two devices, bge0 and bge1, and the resulting output.
# dladm show-link ce0 type: legacy mtu: 1500 device: ce0 ce1 type: legacy mtu: 1500 device: ce1 bge0 type: non-vlan mtu: 1500 device: bge0 bge1 type: non-vlan mtu: 1500 device: bge1 bge2 type: non-vlan mtu: 1500 device: bge2 # ifconfig -a lo0: flags=2001000849 <UP,LOOPBACK,RUNNING,MULTICAST,IPv4,VIRTUAL> mtu 8232 index 1 inet 127.0.0.1 netmask ff000000 ce0: flags=1000843 <UP,BROADCAST,RUNNING,MULTICAST,IPv4> mtu 1500 index 2 inet 192.168.84.253 netmask ffffff00 broadcast 192.168.84.255 ether 0:3:ba:7:84:5e # dladm create-aggr -d bge0 -d bge1 1 # ifconfig aggr1 plumb 192.168.84.14 up # dladm show-aggr key: 1 (0x0001) policy: L4 address: 0:3:ba:7:84:5e (auto) device address speed duplex link state bge0 0:3:ba:7:b5:a7 1000 Mbps full up attached bge1 0:3:ba:8:22:3b 0 Mbps unknown down standby # ifconfig -a lo0: flags=2001000849 <UP,LOOPBACK,RUNNING,MULTICAST,IPv4,VIRTUAL> mtu 8232 index 1 inet 127.0.0.1 netmask ff000000 ce0: flags=1000843 <UP,BROADCAST,RUNNING,MULTICAST,IPv4> mtu 1500 index 2 inet 192.168.84.253 netmask ffffff00 broadcast 192.168.84.255 ether 0:3:ba:7:84:5e aggr1: flags=1000843 <UP,BROADCAST,RUNNING,MULTICAST,IPv4> mtu 1500 index 3 inet 192.168.84.14 netmask ff000000 broadcast 192.255.255.255 ether 0:3:ba:7:84:5e |
Note that the two interfaces that were used for the aggregation were not previously plumbed by ifconfig.