vyos@vyos# show interfaces
 bonding bond0 {
     member {
         interface eth0
         interface eth1
     }
 }
 ethernet eth0 {
     hw-id 0c:e6:b1:4e:f5:00
 }
 ethernet eth1 {
     description XX
     hw-id 0c:e6:b1:4e:f5:01
 }
 ethernet eth2 {
     disable
     hw-id 0c:e6:b1:4e:f5:02
     mtu 900
 }
 ethernet eth3 {
     disable
     hw-id 0c:e6:b1:4e:f5:03
     mac 0c:e6:b1:bb:22:11
 }

[edit]
vyos@vyos# delete interfaces ethernet eth2 disable
[edit]

vyos@vyos# commit
[ interfaces ethernet eth2 ]
VyOS had an issue completing a command.

We are sorry that you encountered a problem while using VyOS.
There are a few things you can do to help us (and yourself):
- Make sure you are running the latest version of the code available at
  https://downloads.vyos.io/rolling/current/amd64/vyos-rolling-latest.iso
- Consult the forum to see how to handle this issue
  https://forum.vyos.io
- Join our community on slack where our users exchange help and advice
  https://vyos.slack.com

When reporting problems, please include as much information as possible:
- do not obfuscate any data (feel free to contact us privately if your
  business policy requires it)
- and include all the information presented below

Report Time:      2020-06-04 12:05:44
Image Version:    VyOS 1.3-rolling-202005231822
Release Train:    equuleus

Built by:         autobuild@vyos.net
Built on:         Sat 23 May 2020 18:22 UTC
Build UUID:       accc3924-d101-45e8-aa0d-3c4c4273a147
Build Commit ID:  a29347ca9dd260

Architecture:     x86_64
Boot via:         installed image
System type:      KVM guest

Hardware vendor:  QEMU
Hardware model:   Standard PC (i440FX + PIIX, 1996)
Hardware S/N:    
Hardware UUID:    de852a79-4620-4241-a116-4d37e8f54ef5

Traceback (most recent call last):
  File "/usr/libexec/vyos/conf_mode/interfaces-ethernet.py", line 308, in <module>
    apply(c)
  File "/usr/libexec/vyos/conf_mode/interfaces-ethernet.py", line 252, in apply
    e.add_ipv6_eui64_address(addr)
  File "/usr/lib/python3/dist-packages/vyos/ifconfig/interface.py", line 449, in add_ipv6_eui64_address
    self.add_addr(f'{eui64}/{prefixlen}')
  File "/usr/lib/python3/dist-packages/vyos/ifconfig/interface.py", line 679, in add_addr
    self._cmd(f'ip addr add "{addr}" dev "{self.ifname}"')
  File "/usr/lib/python3/dist-packages/vyos/ifconfig/control.py", line 48, in _cmd
    return cmd(command, self.debug)
  File "/usr/lib/python3/dist-packages/vyos/util.py", line 178, in cmd
    raise OSError(code, feedback)
FileNotFoundError: [Errno 2] failed to run command: ip addr add "fe80::ee6:b1ff:fe4e:f502/64" dev "eth2"
returned:
exit code: 2

noteworthy:
cmd 'ip addr add "fe80::ee6:b1ff:fe4e:f502/64" dev "eth2"'
returned (out):

returned (err):
RTNETLINK answers: No buffer space available

[[interfaces ethernet eth2]] failed
Commit failed
[edit]
vyos@vyos#