You can combine (aggregate) 2 or more physical interfaces into a single logical one. It’s called bonding, or LAG, or ether-channel, or port-channel.
Create interface bondX, where X is just a number:
set interfaces bonding bond0 description 'my-sw1 int 23 and 24'
You are able to choose a hash policy:
[email protected]# set interfaces bonding bond0 hash-policy Possible completions: layer2 use MAC addresses to generate the hash (802.3ad) layer2+3 combine MAC address and IP address to make hash layer3+4 combine IP address and port to make hash
set interfaces bonding bond0 hash-policy 'layer2'
You may want to set IEEE 802.3ad Dynamic link aggregation (802.3ad) AKA LACP (don’t forget to setup it on the other end of these links):
set interfaces bonding bond0 mode '802.3ad'
or some other modes:
[email protected]# set interfaces bonding bond0 mode Possible completions: 802.3ad IEEE 802.3ad Dynamic link aggregation (Default) active-backup Fault tolerant: only one slave in the bond is active broadcast Fault tolerant: transmits everything on all slave interfaces round-robin Load balance: transmit packets in sequential order transmit-load-balance Load balance: adapts based on transmit load and speed adaptive-load-balance Load balance: adapts based on transmit and receive plus ARP xor-hash Load balance: distribute based on MAC address
Now bond some physical interfaces into bond0:
set interfaces bonding bond0 member interface eth0 set interfaces bonding bond0 member interface eth1
After a commit you may treat bond0 as almost a physical interface (you can’t change its` duplex, for example) and assign IPs or VIFs on it.
You may check the result:
[email protected]# run sh interfaces bonding Codes: S - State, L - Link, u - Up, D - Down, A - Admin Down Interface IP Address S/L Description --------- ---------- --- ----------- bond0 - u/u my-sw1 int 23 and 24 bond0.10 192.168.0.1/24 u/u office-net bond0.100 10.10.10.1/24 u/u management-net