[SOLVED] RB1100AH Can't create bridge between master ports

I’ve been setting up a RB 1100 AH for work to replace our awful netgear jobby.
But I’m stuck, I can’t seem to bridge together switch1 and 2.

I have the following config:

  • eth1-master
  • eth2-5-slave to eth1
  • eth6-master
  • eth7-10-slave to eth6
  • eth11 is my wan port.

I have 1 bridge (bridge-local) which has eth1-master added too it.
So ports 1-5 route correctly as intended.

But when trying to add the eth6-master to the bridge, it just says “invalid”

Have I missed something?

Flags: D - dynamic, X - disabled, R - running, S - slave
 #     NAME                                TYPE       ACTUAL-MTU L2MTU  MAX-L2MTU MAC-ADDRESS
 0  RS ether1-master                       ether            1500  1598       9498 D4:CA:6D:3C:93:FC
 1   S ether2-slave                        ether            1500  1598       9498 D4:CA:6D:3C:93:FD
 2   S ether3-slave                        ether            1500  1598       9498 D4:CA:6D:3C:93:FE
 3   S ether4-slave                        ether            1500  1598       9498 D4:CA:6D:3C:93:FF
 4  RS ether5-slave                        ether            1500  1598       9498 D4:CA:6D:3C:94:00
 5     ether6-master                       ether            1500  1598       9498 D4:CA:6D:3C:94:01
 6   S ether7                              ether            1500  1598       9498 D4:CA:6D:3C:94:02
 7   S ether8                              ether            1500  1598       9498 D4:CA:6D:3C:94:03
 8   S ether9                              ether            1500  1598       9498 D4:CA:6D:3C:94:04
 9   S ether10                             ether            1500  1598       9498 D4:CA:6D:3C:94:05
10  R  ether11-wan                         ether            1500  1600       9500 D4:CA:6D:3C:94:06
11     ether12                             ether            1500  1600       9116 D4:CA:6D:3C:94:07
12     ether13                             ether            1500  1600       9116 D4:CA:6D:3C:94:08
13  R  bridge-local                        bridge           1500  1598            D4:CA:6D:3C:93:FC



Flags: X - disabled, I - inactive, D - dynamic
 #    INTERFACE                                                                   BRIDGE                                                                  PRIORITY  PATH-COST    HORIZON
 0    ether1-master                                                               bridge-local                                                                0x80         10       none
 1 I  ether6-master                                                               bridge-local                                                                0x80         10       none

OK I feel really really dumb.

Sorry, I didn’t realise that the switch would set the bridge port to “inactive” if nothing is plugged into the other ports!

I’ll leave this here in case anyone else google’s the same thing.