cancel
Showing results for 
Search instead for 
Did you mean: 

Switch was detected that improperly forwards LLDP Packets

Highlighted
Getting noticed

Switch was detected that improperly forwards LLDP Packets

We have one network with two switches plugged directly into the firewall Mx84. Upon looking at the topology for this network, there is a red diamond on the leg to the second switch. The message, when the cursor is hovered over it is, "A switch was detected that improperly forwards LLDP packets. This can cause your network topoplogy to be incomplete or incorrect." 

 

I read somewhere that you should not connect more than one switch to the firewall, and that switches should be connected to each other. Is this correct? Also how do I solve this issue. 

 

 

Thanks in advance.Topology.JPG

4 REPLIES
Kind of a big deal

Re: Switch was detected that improperly forwards LLDP Packets

This usually means there is a dumb layer 2 switch in the mix somewhere.

Kind of a big deal

Re: Switch was detected that improperly forwards LLDP Packets

Yes as Phil mentioned you either have something between the MX and MS unit. If not try rebooting them both and see if it comes right. If that doesn't work Open a support case.

 

Just another quick thought you haven't recently added the MS unit on the link thats reporting the error have you? it could simply be the dashboard hasn't updated yet. 

Meraki CMNO, Ruckus WISE, Sonicwall CSSA, Allied Telesis CASE & CAI
Getting noticed

Re: Switch was detected that improperly forwards LLDP Packets

The MS unit was there prior to adding the second switch that is giving the error

 

New here

Re: Switch was detected that improperly forwards LLDP Packets

Do you have pair of MX's and are those directly connected together with cable? Recommended topology is that there is not direct connection between MX's. https://documentation.meraki.com/MX/Deployment_Guides/MX_Warm_Spare_-_High_Availability_Pair#Fully_R...)