Debian preseed fails on mikrotik switches

RouterOS General
1

Hi,

I’m testing switching functionality on CRS354 and see that they work fine for basic TOR switch. If i try to do automatic debian installation with preseed it fail for the error you can see in attached image. If i move the cable to a Cisco or FS switch it works fine. I’m experiencing this issue only with Debian and Mikrotik, it work fine if i will try to install CentOS or Windows.

During the installation i see the interface bringing up, server boot on pxe and TFTP fine and installation start. During link discover, i see link going down (on winbox i see port switch from RS to S statem then after 5 seconds came back to RS) and then up after 5 seconds. Debian see the port down and installation fails.. If i press “Continue” button, the installation will continue and end successfully.

Do someone else experienced this and know how to fix? RSTP is enabled on bridge

Regards
debian_nocps.jpg

2 
interface bridge port monitor <enter number>

Look to see if it is set to auto for edge port discovery (should be by default). If it is auto confirm that it is being discovered as an edge port. If not, configure it to be an edge port.

3

hi,
thank you for the reply.

yes is seen as edge

> interface bridge port monitor 5
            interface: ether7
               status: in-bridge
          port-number: 7
                 role: designated-port
            edge-port: yes
  edge-port-discovery: yes
  point-to-point-port: yes
         external-fdb: no
         sending-rstp: yes
             learning: yes
           forwarding: yes
     multicast-router: no
     hw-offload-group: switch1

i also tried to put to “yes, discovery” mode, but still no changes