[email protected]# set protocols bgp 65001 maximum-paths 
Possible completions:
   ebgp         Maximum ebgp multipaths
   ibgp         Maximum ibgp multipaths

from vyos.util import cmd
cmd(f'sudo kill -s {cls._signal[what]} {pid}')

vyos@r-roll01:~$ sudo cat /tmp/keepalived.json 
[ { "data": { "iname": "test", "dont_track_primary": 0, "skip_check_adv_addr": 0, "strict_mode": 0, "vmac_ifname": "eth1v1", "track_ifp": [ ], "track_script": [ ], "ifp_ifname": "eth1v1", "master_priority": 100, "last_transition": 1615454936.7267461, "garp_delay": 5, "garp_refresh": 0, "garp_rep": 5, "garp_refresh_rep": 1, "garp_lower_prio_delay": 5, "garp_lower_prio_rep": 5, "lower_prio_no_advert": 0, "higher_prio_send_advert": 0, "vrid": 1, "base_priority": 100, "effective_priority": 100, "vipset": true, "vips": [ "172.20.110.111", "172.20.110.15" ], "evips": [ ], "promote_secondaries": false, "vroutes": [ ], "vrules": [ ], "adver_int": 1, "master_adver_int": 1, "accept": 1, "nopreempt": false, "preempt_delay": 0, "state": 2, "wantstate": 2, "version": 2, "smtp_alert": false, "auth_type": 0 }, "stats": { "advert_rcvd": 983, "advert_sent": 10535, "become_master": 1, "release_master": 0, "packet_len_err": 0, "advert_interval_err": 0, "ip_ttl_err": 0, "invalid_type_rcvd": 0, "addr_list_err": 0, "invalid_authtype": 0, "authtype_mismatch": 0, "auth_failure": 0, "pri_zero_rcvd": 2, "pri_zero_sent": 0 } } ]

{
   "data":{
      "iname":"test",
      "dont_track_primary":0,
      "skip_check_adv_addr":0,
      "strict_mode":0,
      "vmac_ifname":"eth1v1",
      "track_ifp":[

set interfaces dummy dum0
set interfaces ethernet eth1 address dhcp
set load-balancing wan interface-health eth1 nexthop dhcp
set load-balancing wan rule 1 inbound-interface dum0
set load-balancing wan rule 1 interface eth1
commit

[email protected]:~$ show wan-load-balance 
Interface:  eth1
  Status:  active
  Last Status Change:  Thu Mar 11 09:31:54 2021
  +Test:  ping  Target: 
    Last Interface Success:  0s 
    Last Interface Failure:  2m35s      
    # Interface Failure(s):  0

set system syslog global facility all level 'info'
set system syslog global facility protocols level 'debug'
set system syslog host 192.168.122.1 facility all level 'all'
set system syslog host 192.168.122.1 port '514'
set system syslog host 2001:db8::2 facility all level 'all'
set system syslog host 2001:db8::3 facility all level 'all'
set system syslog host 2001:db8::3 port '514'
set system syslog host 2001:db8::4 facility all level 'all'
set system syslog host 2001:db8::4 port '514'

set protocols rpki cache rtr-ham1.mhl-lab.net port '3323'
set protocols rpki cache rtr-ham1.mhl-lab.net preference '2'

set system syslog host [2001:db8::2]:514 facility all level 'all'

root@r-roll01:/home/vyos# basename /sys/class/net/eth1/upper_* | sed -e 's/upper_//'
eth1v1

set param xxx option xxx..
set param2 xxx .option xxx..

showvyos@vyos:~$ show int
Codes: S - State, L - Link, u - Up, D - Down, A - Admin Down
Interface        IP Address                        S/L  Description
---------        ----------                        ---  -----------
eth0             -                                 u/u  WAN01-pppoe
eth1             10.0.0.1/24                       u/u  LAN
eth2             192.0.2.12/24                     u/u  WAN02-dhcp
eth3             -                                 u/u  
lo               127.0.0.1/8                       u/u  
                 ::1/128                                
pppoe0           10.1.1.101/32                     u/u

vyos@r-roll01# sudo ip tunnel add tun22 mode gre local 203.0.113.1 remote any 
[edit]
vyos@r-roll01# sudo ip tunnel change tun22 mode gre local 203.0.113.1 remote 203.0.113.254
add tunnel "tun22" failed: Invalid argument
[edit]
vyos@r-roll01#

set interfaces tunnel tun1 address '10.20.30.1/30'
set interfaces tunnel tun1 encapsulation 'gre'
set interfaces tunnel tun1 source-address '192.168.122.11'
set interfaces tunnel tun1 multicast 'disable'
commit
set interfaces tunnel tun1 remote 192.168.122.12
commit