Explanation of VLAN Pool Assignment Algorithms:
In WLANs, VLAN pools help reduce broadcast domains and improve network performance by distributing users across multiple VLANs. Two algorithms are used for VLAN assignment:
Even Assignment Algorithm:
* The number of users in each VLAN is even.
* This algorithm assigns users evenly across VLANs, ensuring a balanced distribution of users in each VLAN.
* When STAs go offline and online again, their VLANs and IP addresses may easily change.
* Since the assignment is based on maintaining even distribution, a device (STA) may not be assigned the same VLAN when it reconnects, leading to potential IP address changes.
Hash Assignment Algorithm:
* The number of users in each VLAN is uneven.
* The hash algorithm assigns users to VLANs based on a hash value (e.g., derived from the MAC address). This may result in an uneven distribution of users across VLANs.
* VLANs and IP addresses remain unchanged for STAs that go offline and online again.
* The hash algorithm ensures that a device reconnects to the same VLAN, preserving its IP address.
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