Dynamic VLAN

Layer 2 Management > Dynamic VLAN > Dynamic VLAN

• Select—click to select the context for which the configuration needs to be done.
• Context—displays the virtual context ID that uniquely represents a virtual switch created in the physical switch. This value ranges from 0 to 65535. The default value is 0.

• Dynamic VLAN Status—select the administrative status requested by management for GVRP. The default option is Enabled for the default context ID (0) and Disabled for other context IDs. The list contains:
  • Enabled—enables GVRP on the switch, on all ports for which GVRP is not specifically disabled in the Dynamic VLAN Port Configuration screen.
  • Disabled—disables GVRP on all ports of the switch and transparently forwards all GVRP packets.
    Note:

    The administrative status affects all GVRP applicant and registrar state machine. All GVRP state machines on all ports are idle when status is changed from Disabled to Enabled.

• Apply—modifies attributes and saves the changes.

Layer 2 Management > Dynamic VLAN > Port Settings

• Select—click to select the context for which the configuration needs to be done.
• Context—displays the virtual context ID that uniquely represents a virtual switch created in the physical switch. This value ranges from 0 to 65535. The default value is 0.
• Dynamic VLAN Status—select the state of GVRP operation in the port. This state affects all GVRP applicant and registrar state machines in the port. All GVRP state machines in the port are reset once the state is changed from Disabled to Enabled. The default option is Enabled on all physical ports. The list contains:
  • Enabled—enables GVRP in the port, only if Dynamic VLAN Status is globally enabled. Otherwise GVRP is not enabled in the port. Once the Dynamic VLAN Status is globally disabled, GVRP enabled in the port is also disabled.
  • Disabled—disables GVRP in the port, even if the dynamic VLAN feature (Dynamic VLAN Status) is globally enabled. Silently discards any received GVRP packets and does not propagate GVRP registrations from other ports.
• Restricted VLAN Registration—displays the virtual context ID that uniquely represents a virtual switch created in the physical switch. This value ranges from 0 to 65535. The default value is 0.
  • Enabled—enables restricted VLAN registration. That is, the creation or modification of a dynamic VLAN entry is permitted only for VLAN for which static VLAN registration entries exist.
  • Disabled—disables restricted VLAN registration. That is, the creation or modification of a dynamic VLAN entry is permitted for all VLANs.

• Apply—modifies attributes and saves the changes.

Layer 2 Management > Dynamic VLAN > GARP Timers

• Select—click to select the port for which the configuration needs to be done.
• Port No—displays the port, which is a combination of interface type and interface ID. The interface ID is a combination of slot number and the port number (slot number/port number).
• GarpJoinTime (msecs)—enter the time duration till which a GARP participant must wait for its join message to be acknowledged before re-sending the join message. The join message is re-transmitted only once if the initial message is not acknowledged. This timer is started when the initial join message is sent. The join message is sent by a GARP participant to another GARP participant for registering:
  • Its attributes with another participant
  • Its manually configured attributes
  • Attributes received from a third GARP participant

This value is represented in milliseconds. The default value is 200. The value can only be set as multiple of tens (e.g., 210, 220, 230 and so on).This value should satisfy the condition: GarpJoinTime > 0 and (2*GarpJoinTime) < GarpLeaveTime

• GarpLeaveTime (msecs)—enter the time duration till which a GARP participant must wait for any join message before removing attribute details (that is, waiting time for a registrar to move from empty state (MT) to leave state (LV)). This timer is started when a leave message is sent to de-register the attribute details.The leave messages are sent from one GARP participant to another one as follows:
  • Its attributes should be de-registered
  • Its attributes are manually de-registered
  • leave messages are received from a third GARP participant
• GarpLeaveAllTime (msecs)—enter the time period during which the details of the registered attributes are maintained. The attribute details should be re-registered after this time interval. A leaveall message is sent from a GARP participant to other GARP participants, after this time interval. This timer is started once a GARP participant started or re-registration is done. The leaveall messages are sent from a GARP participant to other participants for:
  • De-registering all registered attributes
  • Re-registering all attributes with each of the participants. This value is represented in milliseconds. The default value is 10000. You can set the value as multiple of tens (that is, as 10010, 10020, and so on).
  • The leave all time should be greater than 0 and greater than GarpLeaveTim

• Apply—modifies attributes and saves the changes.

Layer 2 Management > Dynamic VLAN > Garp Clear Stats

• Clear garp Statistic—click to select which GARP statistics have to be cleared.
  • All—clears the GARP statistics for all port information in the switch
  • Interface—clears the GARP statistics for the specified interface in the switch
• Interface—select the interface which clears the GARP counters on the switch.

• Apply—modifies attributes and saves the changes.