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Forum Discussion
Problem with port mirroring for LAG
Hello.
I need to perform port mirroring for 2 ports in one LAG which is connected to the Firewall (xg1&xg2, FortiGate FGT100E, both ports are related to the one "lan" FGT interface).
I tried to perform this mirror to another port xg38 in same switch, this port is connected to the ESXi host with Linux VM.
All ports are in the same VLAN.
I tried to add port mirroring for one or both FGT ports in that LAG but can't see any captured packets (by tcpdump).
If I do port mirroring for any other port (where other network hosts are connected) and ports mirroring works good.
I have another LAG with 2 ports (xg47&48), through which another similar NetGear switch is connected. I tried mirroring these ports but got the same problem.
So my question is: does port mirroring work if these ports are in LAG?
1 Reply
- Switch model and firmware?
Keep in mind port mirroring is strictly port based, mirroring a multi-port LAG - with a LAG config destination port - can't be done.
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