Configure Dynamic VLAN Learning

By default, GVRP is enabled globally and can be enabled or disabled on a per-port basis. If GVRP is disabled globally in the switch, use the set gvrp enable command to enable GVRP globally, or use the set port gvrp interface_id enable command to enable GVRP on an interface. If GVRP is disabled globally or on a particular port, then dynamic learning will not take place globally or on that specified port. By default, all of the ports in a switch are created (but only port 0/1 is up) and added as member ports of default VLAN, vlan 1. In switch A, P1 is configured to be a member port of VLAN 2. See Default Settings for the example topology for this procedure.

1. Review the current global GVRP status.

   SEFOS# show vlan device info
   Vlan device configurations
   --------------------------
   Vlan Status                       : Enabled
   Vlan Oper status                  : Enabled
   Gvrp status                       : Enabled
   Gmrp status                       : Enabled
   Gvrp Oper status                  : Enabled
   Gmrp Oper status                  : Enabled
   Mac-Vlan Status                   : Disabled
   Subnet-Vlan Status                : Disabled
   Protocol-Vlan Status              : Enabled
   Bridge Mode                       : Customer Bridge
   Base-Bridge Mode                  : Vlan Aware Bridge
   Traffic Classes                   : Enabled
   Vlan Operational Learning Mode    : IVL
   Version number                    : 1
   Max Vlan id                       : 4094
   Max supported vlans               : 4094
   Unicast mac learning limit        : 16334

2. Review the current port GVRP value.

   SEFOS# show vlan port config port extreme-ethernet 0/1
   Vlan Port configuration table
   --------------------------
   Port Ex0/1
   Port Vlan ID                        : 1
   Port Acceptable Frame Type          : Admit All
   Port Ingress Filtering              : Disabled
   Port Mode                           : Hybrid
   Port Gvrp Status                    : Enabled
   Port Gmrp Status                    : Enabled
   Port Gvrp Failed Registrations      : 0
   Gvrp last pdu origin                : 00:00:00:00:00:00
   Port Restricted Vlan Registration   : Disabled
   Port Restricted Group Registration  : Disabled
   Mac Based Support                   : Disabled
   Subnet Based Support                : Disabled
   Port-and-Protocol Based Support     : Enabled
   Default Priority                    : 0
   Dot1x Protocol Tunnel Status        : Peer
   LACP Protocol Tunnel Status         : Peer
   Spanning Tree Tunnel Status         : Peer
   GVRP Protocol Tunnel Status         : Peer
   GMRP Protocol Tunnel Status         : Peer
   IGMP Protocol Tunnel Status         : Peer
   Filtering Utility Criteria          : Default
   Port Protected Status               : Disabled

   If the switch has not been rebooted, the global or port GVRP status might be disabled.

3. If you need to activate the global or port GVRP status, use the following commands.

   SEFOS# config
   SEFOS(config)# set gvrp enable
   SEFOS(config)# exit

4. Enable port GVRP.

   SEFOS# config
   SEFOS(config)# set port gvrp extreme-ethernet 0/3 enable
   SEFOS(config)# exit

5. Enable the interface (0/3 in this example) in switch A.

   SEFOS# configure terminal
   SEFOS(config)# interface extreme-ethernet 0/3
   SEFOS(config-if)# no shutdown
   SEFOS(config-if)# exit

6. Configure VLAN 2 in switch A.

   SEFOS(config)# vlan 2
   SEFOS(config-vlan)# ports extreme-ethernet 0/3 untagged extreme-ethernet 0/3
   SEFOS(config-vlan)# end

7. Review the VLAN information in switch A (assuming that you are logged in to switch A).

   SEFOS# show vlan
   VLAN database
   -------------
   VLAN ID             : 1
   Member Ports        : Ex0/1, Ex0/2, Ex0/3, Ex0/4, Ex0/5, Ex0/6
   Ex0/7, Ex0/8, Ex0/9, Ex0/10, Ex0/11, Ex0/12
   Ex0/13, Ex0/14, Ex0/15, Ex0/16, Ex0/17, Ex0/18
   Ex0/19, Ex0/20, Ex0/21, Ex0/22, Ex0/23, Ex0/24
   Untagged Ports      : Ex0/1, Ex0/2, Ex0/3, Ex0/4, Ex0/5, Ex0/6
   Ex0/7, Ex0/8, Ex0/9, Ex0/10, Ex0/11, Ex0/12
   Ex0/13, Ex0/14, Ex0/15, Ex0/16, Ex0/17, Ex0/18
   Ex0/19, Ex0/20, Ex0/21, Ex0/22, Ex0/23, Ex0/24
   Forbidden Ports     : None
   Name                :
   Status              : Permanent
   ----------------------------------------------------
   VLAN ID             : 2
   Member Ports        : Ex0/3
   Untagged Ports      : Ex0/3
   Forbidden Ports     : None
   Name                :
   Status              : Permanent

8. Review the output in switch B (assuming that you are already logged in to switch B).

   SEFOS# show vlan
   VLAN database
   -------------
   VLAN ID             : 1
   Member Ports        : Ex0/1, Ex0/2, Ex0/3, Ex0/4, Ex0/5, Ex0/6
   Ex0/7, Ex0/8, Ex0/9, Ex0/10, Ex0/11, Ex0/12
   Ex0/13, Ex0/14, Ex0/15, Ex0/16, Ex0/17, Ex0/18
   Ex0/19, Ex0/20, Ex0/21, Ex0/22, Ex0/23, Ex0/24
   Untagged Ports      : Ex0/1, Ex0/2, Ex0/3, Ex0/4, Ex0/5, Ex0/6
   Ex0/7, Ex0/8, Ex0/9, Ex0/10, Ex0/11, Ex0/12
   Ex0/13, Ex0/14, Ex0/15, Ex0/16, Ex0/17, Ex0/18
   Ex0/19, Ex0/20, Ex0/21, Ex0/22, Ex0/23, Ex0/24
   Forbidden Ports     : None
   Name                : 
   Status              : Permanent
   ----------------------------------------------------
   VLAN ID             : 2
   Member Ports        : Ex0/3
   Untagged Ports      : None
   Forbidden Ports     : None
   Name                : 
   Status              : Dynamic Gvrp