dryrun mode skip some config errors?

[ak503]

u1-VirtualBox(config)# do show interface enp0s3 
Interface enp0s3 is up, line protocol is up
  Link ups:       0    last: (never)
  Link downs:     0    last: (never)
  vrf: default
  index 2 metric 0 mtu 1500 speed 1000 txqlen 1000
  flags: <UP,LOWER_UP,BROADCAST,RUNNING,MULTICAST>
  Type: Ethernet
  HWaddr: 08:00:27:74:86:7c
  inet 10.0.0.31/24
  inet6 fe80::373b:c15e:2bcd:7c1b/64
  Interface Type Other
  Interface Slave Type None
  protodown: off 
u1-VirtualBox(config)# router bgp 1
u1-VirtualBox(config-router)# neighbor 10.0.0.31 remote-as 2
% Can not configure the local system as neighbor     <--------- Its OK
u1-VirtualBox(config-router)# do show running-config 
Building configuration...

Current configuration:
!
frr version 10.1.1
frr defaults traditional
hostname u1-VirtualBox
no ip forwarding
no ipv6 forwarding
!
router bgp 1
exit

but if i want check bgp config via bgpd -C -f <path> then its ok

conf file:

router bgp 1
 neighbor 10.0.0.31 remote-as 2
exit

result:

# bgpd -C -f /usr/local/etc/frr/frr.conf
# echo "$?"
0

[eqvinox]

config dry-run is unfortunately only a syntax check, not a semantic check for the config. At some point in the future, we will be able to do better config checks through YANG and the validation stage there, but this needs a lot more work (even after basic YANG works, validation must be implemented) and won't happen anytime soon. Sorry about that, but right now there is no way to catch this before actually configuring.