Enabling Stp On A Vlan; Disabling Stp On A Vlan; Configuring A Vlan Interface To Forward Fcoe Traffic - Brocade Communications Systems Converged Enhanced Ethernet 8000 Administrator's Manual

To create a VLAN interface, perform the following steps from privileged EXEC mode.
1. Enter the configure terminal command to access global configuration mode.
2. Enter the interface vlan command to assign the VLAN interface number.

Enabling STP on a VLAN

Once all of the interface ports have been configured for a VLAN, you can enable spanning tree
protocol (STP) for all members of the VLAN with a single command. Whichever protocol is currently
selected is used by the VLAN. Only one type of STP can be active at a time.
A physical interface port can be a member of multiple VLANs. For example, a physical port can be a
member of VLAN 100 and VLAN 55 simultaneously. In addition, VLAN 100 can have STP enabled
and VLAN 55 can have STP disabled simultaneously.
To enable STP for a VLAN, perform the following steps from privileged EXEC mode.
1. Enter the configure terminal command to access global configuration mode.
2. Enter the protocol spanning tree command to select the type of STP for the VLAN.
3. Enter the interface command to select the VLAN interface number.
4. Enter the no spanning-tree shutdown command to enable spanning tree on VLAN 100.

Disabling STP on a VLAN

Once all of the interface ports have been configured for a VLAN, you can disable STP for all
members of the VLAN with a single command.
To disable STP for a VLAN, perform the following steps from privileged EXEC mode.
1. Enter the configure terminal command to access global configuration mode.
2. Enter the interface command to select the VLAN interface number.
3. Enter the spanning-tree shutdown command to disable spanning tree on VLAN 55.

Configuring a VLAN interface to forward FCoE traffic

An FCoE Forwarder (FCF) is an FCoE device that supports FCoE VF_ports. It is the equivalent of an
FC switch. A VLAN can be made FCF-capable. Only FCF-capable VLANs can carry FCoE traffic.
To configure a VLAN interface to forward FCoE traffic, see
Converged Enhanced Ethernet Administrator's Guide
53-1002163-02
DRAFT: BROCADE CONFIDENTIAL
switch(config)#interface vlan 100
switch(config)#protocol spanning tree mstp
switch(config)#interface vlan 100
STP is active by default, but enter the command to ensure activation.
switch(conf-if-vl-100)#no spanning-tree shutdown
switch(config)#interface vlan 55
switch(conf-if-vl-55)#spanning-tree shutdown
VLAN configuration and management
"Configuring the FCoE VLAN"
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