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LLDP_Multicast traffic doesn't flow throgh the EX2200

05.16.18   |  
a week ago

Hello

 

In order to communicate Siemens TIA Portal and a S-1200 PLC, i have to connect both to the same swicht, but i can't do that.

The S-1200 is generating LLDP traffic but it can't reach the PC whit Siemens software, the EX2200 is blocking it.

I configure a ge-0/0/12.0 as port mirror and monitor the ingress traffric from the PLC is connected. I can see the LLDP traffic. But it doesn't reach the PC.

I tried turning off the storm control  and doesn't work.

 

Thanks

2 REPLIES
Ethernet Switching

Re: LLDP_Multicast traffic doesn't flow throgh the EX2200

05.16.18   |  
a week ago

Is LLDP enabled on this interface?  If yes LLDP should go EX2200 RE not be passed as L2 multicast.  Same thing for interface connecting to Siemens device.

 

Yes?  LLDP is enabled on all interfaces of EX products by default.

Ethernet Switching

Re: LLDP_Multicast traffic doesn't flow throgh the EX2200

[ Edited ]
05.17.18   |  
a week ago

Yes, it was enabled.

I switch both interfaces off ( the one which uses PC and the one which uses the PLC) and it doesn't work.

juniperEX2200.png

 

This is what i see when i capture traffic in the mirrored port. The traffic reaches the swicht but it doesn't get out of it.

LLDP_siemens.png