We have a cable connected to port 7 of the interface number 2 of a Foundry Bigiron switch. We want to setup this port and connect it to a specific VLAN. These are the steps.

• Telnet to switch

    $telnet switch
    passwd = ....

• Enable super user mode

   > enable 
     passwd = ....

• Enter configuration mode

   > configure terminal

• Display the actual settings for the port 2/7

   > show interfaces ethernet 2/7

• Display the list of VLANs to see what VLAN number we want to use

   > show vlan

• Enter configuration mode for a specific vlan (e.g. vlan number 822)

   > vlan 822

• Connect the port 2/7 to the current vlan (822)

   > untagged ethernet 2/7

• Exit the configuration of the vlan 822

   > exit

• Save new configuration

   > write memory

• Final check the new settings of the port 2/7

   > show vlan ethernet 2/7

Before adding some port to a vlan , you must make sure that the port is not currently connected to any vlan.

To check that port 2/8 is not connected to any vlan , type :

  > show vlan ethernet 2/8

If the port is connected to the default vlan then you can go ahead and attach this port to a specific vlan.

To remove a port from a vlan, check the number of the vlan that the port is attached to by issuing the command

  > show vlan ethernet 2/8

Then, enter the configuration mode of the vlan, eg :

  > vlan 3504

Then if the port is attached to the vlan as a tagged port

  > no tagged ethernet 2/8

if the port is untagged

  > no untagged ethernet 2/8

finaly exit the vlan configuration mode and save

 > exit
 > write memory

Labels: routing, howto