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GS308E Smart Managed Plus VLAN
I have a question about VLAN operation for the "Smart Managed Plus" switch line. One primary purpose of a switch is that it will learn about what connected devices are on each switch port and sen...
Asymmetric VLANs are by far not supported by all 802.1Q supporting switches - because asymmetric (sometimes named overlapping) is not a part of the 802.1Q standard at all. Some vendors misleadingly designate 802.1Q == Asymmetric VLAN ... what is definitively wrong.
In my opinion it's a mistake that the Netgear Web UI does allow such a configuration, because Netgear does strictly support using routing for any connection between different VLANs only, certainly in the Smart Managed Plus and Smart Managed Pro switch class (and when I have it right even in the Manages Switch class). The hub-like behavior is a side effect of the invalid configuration applied to the switch core IMHO.
VLANs as per 802.1Q allow network administrators to subdivide a physical network into separate logical broadcast domains. On a flat Layer 2 network, all hosts connected to a switch are members of the same broadcast domain; and broadcast domains and IP subnet can only be interconnected by routers.
Asymmetric VLANs are by far not supported by all 802.1Q supporting switches - because asymmetric (sometimes named overlapping) is not a part of the 802.1Q standard at all. Some vendors misleadingly designate 802.1Q == Asymmetric VLAN ... what is definitively wrong.
In my opinion it's a mistake that the Netgear Web UI does allow such a configuration, because Netgear does strictly support using routing for any connection between different VLANs only, certainly in the Smart Managed Plus and Smart Managed Pro switch class (and when I have it right even in the Manages Switch class). The hub-like behavior is a side effect of the invalid configuration applied to the switch core IMHO.
VLANs as per 802.1Q allow network administrators to subdivide a physical network into separate logical broadcast domains. On a flat Layer 2 network, all hosts connected to a switch are members of the same broadcast domain; and broadcast domains and IP subnet can only be interconnected by routers.
Thanks this makes sense!
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