Switch XMG-108 and XMG-108HP

server3

Hello,

I have 4 of these switches connected in series. The LEDs indicate LOOP between them. The network works. I tried connecting the switch to the switch with a cat7 cable and a 10gbe optical cable and it still indicates a loop (the green LED blinks slowly)

even if I connect two switches to each other and nothing else is connected, it automatically indicates a loop.

Is this normal?
I haven't found anything about it anywhere.

Thanks, who knows what it is.

server3

So the engineers must have made a mistake somewhere. Never mind, it works so I'll leave it at that.

Thank you for your answer :)

Zyxel_Melen

Hi @server3,

This is a known issue in the XMG100 series. It enables loop detection but accidentally recognizes the loop probe packets from other XMG100 series as from itself when the XMG100 series connects.

The traffic will be forwarded without issue since this is the loop detection behavior.

server3

So the engineers must have made a mistake somewhere. Never mind, it works so I'll leave it at that.

Thank you for your answer :)

Zyxel_Melen

Update:

This issue has been fixed in the newly manufactured device. You may check if your serial number is after the serial in the below table.

Model	SN from
XMG-105	S244322003111
XMG-108	S244328017995
XMG-105HP	S244318000001
XMG-108HP	S244318000501