Instant On - Wired

Hello,
I have a problem about an infrastructure with two switchs, which are Aruba 1930 24G.
As the picture below show, two switchs create vlan1 and vlan5 with untagged, then each vlan1 get one port connecting to one firewall, and each vlan5 get one port  connecting to another firewall.
Than two switch crash.I disconnect from thier ip.
They will be recovered after I disconnect any one connected line.
So it is seem to be loop, but I think it is impossible to be loop

How to resolve this problem?
Why it can be loop?


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Weber Yeh
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Hey Weber,

I shared this with my team internally and we would like to further assist. Can you contact our support team for more direct help on this issue? Contact Aruba Instant On Support

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Aruba Instant On Communications
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Original Message:
Sent: 07-26-2022 12:15 PM
From: Weber Yeh
Subject: Connect two switches 1930 with two VLANs each

Hello,
I have a problem about an infrastructure with two switchs, which are Aruba 1930 24G.
As the picture below show, two switchs create vlan1 and vlan5 with untagged, then each vlan1 get one port connecting to one firewall, and each vlan5 get one port  connecting to another firewall.
Than two switch crash.I disconnect from thier ip.
They will be recovered after I disconnect any one connected line.
So it is seem to be loop, but I think it is impossible to be loop

How to resolve this problem?
Why it can be loop?

------------------------------
Weber Yeh
------------------------------

Original Message:
Sent: 07-26-2022 12:15 PM
From: Weber Yeh
Subject: Connect two switches 1930 with two VLANs each

Hello,
I have a problem about an infrastructure with two switchs, which are Aruba 1930 24G.
As the picture below show, two switchs create vlan1 and vlan5 with untagged, then each vlan1 get one port connecting to one firewall, and each vlan5 get one port  connecting to another firewall.
Than two switch crash.I disconnect from thier ip.
They will be recovered after I disconnect any one connected line.
So it is seem to be loop, but I think it is impossible to be loop

How to resolve this problem?
Why it can be loop?

------------------------------
Weber Yeh
------------------------------