How to create bond interface

Don't use bond interfaces by ubuntu guid — it's a real bullshit.
If it works now, it doesn't matter that it will work after reboot if you have more then 1 bond interface.
You have to use debian-style bond interface settings.

Example of using with 8 interfaces combined by 4 interfaces to 2 bond interfaces.
/etc/network/interfaces

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auto eth0
iface eth0 inet manual
    bond-master bond0

auto eth1
iface eth1 inet manual
    bond-master bond0

auto eth2
iface eth2 inet manual
    bond-master bond0

auto eth3
iface eth3 inet manual
    bond-master bond0

auto eth4
iface eth4 inet manual
    bond-master bond1

auto eth5
iface eth5 inet manual
    bond-master bond1

auto eth6
iface eth6 inet manual
    bond-master bond1

auto eth7
iface eth7 inet manual
    bond-master bond1

auto bond0
iface bond0 inet static
       address 192.168.1.11
       netmask 255.255.255.128
       network 192.168.1.0
       broadcast 192.168.1.127
       gateway 192.168.1.1
## following commented settings for auto generating resolve.conf
#       dns-nameservers 192.168.11.2 192.168.11.3
#       dns-search home.local work.local
#       dns-options timeout:1
       bond-mode 4
       bond-miimon 100
       bond-updelay 200
       bond-downdelay 200
       bond-lacp-rate 1
       bond-xmit_hash_policy layer3+4
       bond-max-bonds 2
       bond-slaves none

auto bond1
iface bond1 inet static
       address 8.8.8.8
       netmask 255.255.255.0
       network 8.8.8.0
       broadcast 8.8.8.255
       gateway 8.8.8.1
       bond-mode 4
       bond-miimon 100
       bond-updelay 200
       bond-downdelay 200
       bond-lacp-rate 1
       bond-xmit_hash_policy layer3+4
       bond-max-bonds 2
       bond-slaves none