VLANsid

VLANsid, short for Virtual Local Area Network Segment Identifier, is a unique identifier assigned to each Virtual Local Area Network (VLAN) within a network. VLANs are used to segment a network into smaller, broadcast domains, which can improve network performance, security, and manageability. Each VLAN is identified by a VLANsid, which is a 12-bit number ranging from 0 to 4095. The VLANsid is used by network devices, such as switches and routers, to determine which VLAN a particular frame or packet belongs to. The VLANsid is typically included in the header of the frame or packet, allowing network devices to forward the frame or packet to the appropriate VLAN. VLANs can be used to isolate different types of traffic, such as voice, video, and data, and to provide security by limiting broadcast traffic to a specific VLAN. VLANs can also be used to simplify network management by allowing network administrators to group devices into logical units, regardless of their physical location.