我的绑定网络配置隐藏在哪里？

Ubuntu 18.04.4 LTS

大约 18 个月前，我成功地将两个网络适配器绑定/组合在一起，但我不记得我是如何做到的。我今天想对其进行一些配置更改，但是所有指南都说要使用/etc/network/interfaces，而没有提及bond0. 但是bond0工作没问题，并且出现在我在网上找到的指南中提到的所有其他正确位置，并且配置在重新启动后仍然存在，没问题。我还应该在哪里寻找我的配置来对其进行更改？

cat /etc/network/interfaces

# interfaces(5) file used by ifup(8) and ifdown(8)
auto lo
iface lo inet loopback

-

ifconfig bond0

bond0: flags=5187<UP,BROADCAST,RUNNING,MASTER,MULTICAST>  mtu 1500
        inet 192.168.1.2  netmask 255.255.255.0  broadcast 192.168.1.255
        ether 50:e5:49:ec:04:a3  txqueuelen 1000  (Ethernet)
        RX packets 3474191336  bytes 4420057363170 (4.4 TB)
        RX errors 2  dropped 0  overruns 0  frame 2
        TX packets 1982143191  bytes 1495586643074 (1.4 TB)
        TX errors 0  dropped 49 overruns 0  carrier 0  collisions 0

-

cat /proc/net/bonding/bond0

Ethernet Channel Bonding Driver: v3.7.1 (April 27, 2011)

Bonding Mode: IEEE 802.3ad Dynamic link aggregation
Transmit Hash Policy: layer2 (0)
MII Status: up
MII Polling Interval (ms): 1
Up Delay (ms): 0
Down Delay (ms): 0

802.3ad info
LACP rate: slow
Min links: 0
Aggregator selection policy (ad_select): stable
System priority: 65535
System MAC address: 50:e5:49:ec:04:a3
Active Aggregator Info:
        Aggregator ID: 1
        Number of ports: 2
        Actor Key: 9
        Partner Key: 66
        Partner Mac Address: b4:fb:e4:1a:e2:57
.......

网络计划更新 似乎不是我可以告诉的网络计划：

/etc/netplan$ ls
01-network-manager-all.yam

/etc/netplan$ cat 01-network-manager-all.yaml
# Let NetworkManager manage all devices on this system
network:
  version: 2
  renderer: NetworkManager

更新 2

ls -al /etc/network/interfaces.d
total 8
drwxr-xr-x 2 root root 4096 Apr 27  2018 .
drwxr-xr-x 7 root root 4096 Apr  1 20:14 ..