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i got a MFSYS25V2 with 2 Switches.
Since upgrade to firmware version 11.5 i have the following problem.
On both switches i configured a VLAN with e.g. VLAN-ID 55 on only one single external port as untagged, not on the 10G.XC interlink port.
I also have two Dell PowerConnect switches.
When i connect these components as show in the graphic below, i get a loop.
- The 10G.XC interlink is not member of the VLAN-ID 55.
- all Servers are shut down
- jumbo frames on all switches are enabled (also tried with disabled)
Is there a known bug in the new firmware version 11.5?