TP-Link TL-SG5412F TL-SG5412F V1 User Guide - Page 78
Private VLAN
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Registration Mode: LeaveAll Timer: Join Timer: Leave Timer: LAG: Select the Registration Mode for the port. Normal: In this mode, a port can dynamically register/deregister a VLAN and propagate the dynamic/static VLAN information. Fixed: In this mode, a port cannot register/deregister a VLAN dynamically. It only propagates static VLAN information. Forbidden: In this mode, a port cannot register/deregister VLANs. It only propagates VLAN 1 information. Once the LeaveAll Timer is set, the port with GVRP enabled can send a LeaveAll message after the timer times out, so that other GARP ports can re-register all the attribute information. After that, the LeaveAll timer will start to begin a new cycle. The LeaveAll Timer ranges from 1000 to 30000 centiseconds. To guarantee the transmission of the Join messages, a GARP port sends each Join message two times. The Join Timer is used to define the interval between the two sending operations of each Join message. The Join Timer ranges from 20 to 1000 centiseconds. Once the Leave Timer is set, the GARP port receiving a Leave message will start its Leave timer, and deregister the attribute information if it does not receive a Join message again before the timer times out. The Leave Timer ranges from 60 to 3000 centiseconds. Displays the LAG to which the port belongs. Note: LeaveAll Timer >= 10* Leave Timer, Leave Timer >= 2*Join Timer Configuration Procedure: Step Operation Description 1 Set the link type for port. Required. On the VLAN→802.1Q VLAN→Port Config page, set the link type of the port to be TRUNK. 2 Enable GVRP function. Required. On the VLAN→GVRP page, enable GVRP function. 3 Configure the registration Required. On the VLAN→GVRP page, configure the mode and the timers for the parameters of ports based on actual applications. port. 6.7 Private VLAN Private VLANs, designed to save VLAN resources of uplink devices and decrease broadcast, are sets of VLAN pairs that share a common primary identifier. To guarantee user information security, the ease with which to manage and account traffic for service providers, in campus network, service providers usually require that each individual user is layer-2 separated. VLAN feature can solve this problem. However, as stipulated by IEEE 802.1Q protocol, a device can only support up to 4094 VLANs. If a service provider assigns one VLAN per user, the VLANs will be far from enough; as a result, the number of users this service provider can support is limited. 69