D-Link DGS-1210-12TS/ME [56/159] Configuration gvrp timer settings

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4 Configuration DGS 1210 series Metro Ethernet Managed Switch User Manual GVRP The Group VLAN Registration Protocol GVRP enables the port to dynamically become a member of a VLAN GVRP is Disabled by default Ingress Checking This field can be toggled using the space bar between Enabled and Disabled Enabled enables the port to compare the VID tag of an incoming packet with the PVID number assigned to the port If the two are different the port filters drops the packet Disabled disables ingress filtering Ingress Checking is Disabled by default Acceptable Frame Type This field denotes the type of frame that will be accepted by the port The user may choose between Tagged Only which means only VLAN tagged frames will be accepted and Admit_AII which mean both tagged and untagged frames will be accepted Admit_AII is enabled by default Click Apply to make the configurations take effect Configuration GVRP Timer Settings The GVRP Timer Settings page allows user to configure the GARP timer values for application join leave and leave_all GARP timer values Figure 4 64 Configuration GVRP Timer Settings Join Time 100 100000 Indicates the time in milliseconds that PDUs are transmitted The default value is 200ms Leave Time 100 100000 Indicates the amount of time in milliseconds that the device waits before leaving its GARP state The leave time is activated by a leave all time message sent received and cancelled by the Join message The default value is 600ms Leave_AII Time 100 100000 Used to confirm the port within the VLAN The time in milliseconds between messages sent The default value is 10000ms Click Apply to make the configurations take effect Configuration QinQ QinQ Settings The QinQ Settings page allows user to enable or disable the Q in Q function Q in Q is designed for service providers to carry traffic from multiple users across a network Q in Q is used to maintain customer specific VLAN and Layer 2 protocol configurations even when the same VLAN ID is being used by different customers This is achieved by inserting SPVLAN tags into the customer s frames when they enter the service provider s network and then removing the tags when the frames leave the network Customers of a service provider may have different or specific requirements regarding their internal VLAN IDs and the number of VLANs that can be supported Therefore customers in the same service provider network may have VLAN ranges that overlap which might cause traffic to become mixed up So assigning a unique range of VLAN IDs to each customer might cause restrictions on some of their configurations requiring intense processing of VLAN mapping tables which may exceed the VLAN mapping limit Q in Q uses a single service provider VLAN SPVLAN for customers who have multiple VLANs Customer s VLAN IDs are segregated within the service provider s network even when they use the same customer specific VLAN ID Q in Q expands the VLAN space available while preserving the customer s original tagged packets and adding SPVLAN tags to each new frame Select Enabled or Disabled then click Apply to enable or disable the Q in Q Global Settings 49