MTU size mismatch on bridge0 and tapX

[swaor]

Hi!
When MTU size is another than 1500, is a problem.

Network interfaces (with fixed problem):

em0: flags=8943<UP,BROADCAST,RUNNING,PROMISC,SIMPLEX,MULTICAST> metric 0 mtu 8232
options=2098<VLAN_MTU,VLAN_HWTAGGING,VLAN_HWCSUM,WOL_MAGIC>
ether 00:25:90:a0:ee:99
hwaddr 00:25:90:a0:ee:99
nd6 options=29<PERFORMNUD,IFDISABLED,AUTO_LINKLOCAL>
media: Ethernet autoselect
status: no carrier
em1: flags=8943<UP,BROADCAST,RUNNING,PROMISC,SIMPLEX,MULTICAST> metric 0 mtu 8232
options=2098<VLAN_MTU,VLAN_HWTAGGING,VLAN_HWCSUM,WOL_MAGIC>
ether 00:25:90:a0:ee:99
hwaddr 00:25:90:a0:ee:98
nd6 options=29<PERFORMNUD,IFDISABLED,AUTO_LINKLOCAL>
media: Ethernet autoselect (1000baseT )
status: active
lo0: flags=8049<UP,LOOPBACK,RUNNING,MULTICAST> metric 0 mtu 16384
options=680003<RXCSUM,TXCSUM,LINKSTATE,RXCSUM_IPV6,TXCSUM_IPV6>
inet6 ::1 prefixlen 128
inet6 fe80::1%lo0 prefixlen 64 scopeid 0x3
inet 127.0.0.1 netmask 0xff000000
nd6 options=21<PERFORMNUD,AUTO_LINKLOCAL>
groups: lo
lagg0: flags=8943<UP,BROADCAST,RUNNING,PROMISC,SIMPLEX,MULTICAST> metric 0 mtu 8232
options=2098<VLAN_MTU,VLAN_HWTAGGING,VLAN_HWCSUM,WOL_MAGIC>
ether 00:25:90:a0:ee:99
inet 192.168.16.16 netmask 0xffffff00 broadcast 192.168.16.255
nd6 options=29<PERFORMNUD,IFDISABLED,AUTO_LINKLOCAL>
media: Ethernet autoselect
status: active
groups: lagg
laggproto lacp lagghash l2,l3,l4
laggport: em0 flags=0<>
laggport: em1 flags=1c<ACTIVE,COLLECTING,DISTRIBUTING>
bridge0: flags=8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> metric 0 mtu 8232
description: iohyve-bridge-lagg0
ether 02:e4:10:39:cd:00
nd6 options=1
groups: bridge
id 00:00:00:00:00:00 priority 32768 hellotime 2 fwddelay 15
maxage 20 holdcnt 6 proto rstp maxaddr 2000 timeout 1200
root id 00:00:00:00:00:00 priority 32768 ifcost 0 port 0
member: tap0 flags=143<LEARNING,DISCOVER,AUTOEDGE,AUTOPTP>
ifmaxaddr 0 port 6 priority 128 path cost 2000000
member: lagg0 flags=143<LEARNING,DISCOVER,AUTOEDGE,AUTOPTP>
ifmaxaddr 0 port 4 priority 128 path cost 20000
tap0: flags=8943<UP,BROADCAST,RUNNING,PROMISC,SIMPLEX,MULTICAST> metric 0 mtu 8232
description: iohyve-docker--
options=80000
ether 00:bd:8e:cf:cb:00
hwaddr 00:bd:8e:cf:cb:00
nd6 options=29<PERFORMNUD,IFDISABLED,AUTO_LINKLOCAL>
media: Ethernet autoselect
status: active
groups: tap
Opened by PID 81275

iohyve added interface tap0 with MTU 1500. But bridge0 has MTU 8232,
and add tap0 to bridge0 (ifconfig bridge0 addm tap0) has error:
ifconfig: BRDGADD tap0: Invalid argument`

Need create tapX interfaces with MTU like bridge0.

ps. Sorry for my english. It's not my native language.