vyos@vyos# show interfaces bonding bond1
 member {
     interface eth3
 }

-------------------------------------------------------------------------------

[edit]
vyos@vyos# sudo cat /proc/net/bonding/bond1
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: down
MII Polling Interval (ms): 100
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: 0c:e6:b1:bb:22:11
bond bond1 has no active aggregator

Slave Interface: eth3
MII Status: down
Speed: Unknown
Duplex: Unknown
Link Failure Count: 0
Permanent HW addr: 0c:e6:b1:bb:22:11
Slave queue ID: 0
Aggregator ID: 1
Actor Churn State: churned
Partner Churn State: churned
Actor Churned Count: 1
Partner Churned Count: 1
details actor lacp pdu:
    system priority: 65535
    system mac address: 0c:e6:b1:bb:22:11
    port key: 0
    port priority: 255
    port number: 1
    port state: 69
details partner lacp pdu:
    system priority: 65535
    system mac address: 00:00:00:00:00:00
    oper key: 1
    port priority: 255
    port number: 1
    port state: 1

-------------------------------------------------------------------------------

[edit]
vyos@vyos# delete interfaces bonding bond1 member interface eth3

-------------------------------------------------------------------------------

[edit]
vyos@vyos# compare 
[edit interfaces bonding bond1 member]
-interface eth3

-------------------------------------------------------------------------------

[edit]
vyos@vyos# commit

-------------------------------------------------------------------------------

[edit]
vyos@vyos# show interfaces bonding bond1
 member {
 }

-------------------------------------------------------------------------------

[edit]
vyos@vyos# sudo cat /proc/net/bonding/bond1
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: down
MII Polling Interval (ms): 0
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: 0c:e6:b1:bb:22:11
bond bond1 has no active aggregator

Slave Interface: eth3
MII Status: down
Speed: Unknown
Duplex: Unknown
Link Failure Count: 0
Permanent HW addr: 0c:e6:b1:bb:22:11
Slave queue ID: 0
Aggregator ID: 1
Actor Churn State: churned
Partner Churn State: churned
Actor Churned Count: 1
Partner Churned Count: 1
details actor lacp pdu:
    system priority: 65535
    system mac address: 0c:e6:b1:bb:22:11
    port key: 0
    port priority: 255
    port number: 1
    port state: 69
details partner lacp pdu:
    system priority: 65535
    system mac address: 00:00:00:00:00:00
    oper key: 1
    port priority: 255
    port number: 1
    port state: 1
[edit]