LAG + 2nd switch causing network loops
Hello,
I have a AX73 router with static LAG configured (2 ports). The switch connected to it, TL-SG108E also has LAG configured on the interface.
I connected a 2nd switch to the router (TL-SG605E) and my first switch started flashing amber and green light on the two ports that receive the cable from the router, indicating a network loop.
If I disconnect the 2nd switch from the router, everything goes back to normal.
If I remove the LAG configuration from both the router and the 1st switch and connect the 2nd switch everything works as normal.
What do you think the problem might be? Obviously it is related with the LAG but I just can't figure it out.
All 3 devices have updated firmware.
It would be nice to be able to use the LAG feature in order to have not just redundancy bit also increased bandwidth.
Any help? For reference, on the sw I had it on LAG 2, ports 7 and 8.