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vanikcz
newbie
Topic Author
Posts: 36
Joined: Wed Oct 14, 2015 11:06 pm

LLDP Multicast bridging

Fri Mar 22, 2019 12:56 pm

Hi there!
I have a question regarding LLDP and its passing thru the bridge.
I have several Profinet devices (some industrial automation controllers) and want to monitor the traffic with help of mikrotik devices, but I have problem with the fact the LLDP packets that are carrying PLC time synchronisation are not passing thru the bridge.
I'm attaching the wireshark capture file for your reference since I cant explain it very well.
I was not able to find almost any info on the web regarding this. My device, that I'm trying is RB750r2 if it does matter.
Firmware is 6.44.1

Best Regards, Jan
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vanikcz
newbie
Topic Author
Posts: 36
Joined: Wed Oct 14, 2015 11:06 pm

Re: LLDP Multicast bridging

Fri Mar 22, 2019 9:49 pm

I resolve it by myself - just disable STP on the bridge and viola... I'm not sure why, but now it is working.

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