V Commands

This chapter describes the Cisco NX-OS Fibre Channel, virtual Fibre Channel, and Fibre Channel over Ethernet (FCoE) commands that begin with V.

vsan

To create multiple fabrics sharing the same physical infrastructure, assign ports to Virtual SANs (VSANs), turn on or off interop mode, load balance either per originator exchange or by source-destination ID, and VSAN membership, use the vsan command. To remove a configuration, use the no form of this command.

vsan vsan-id
[interface {fc slot/port | san-port-channel port | vfc vfc-id} |
interop [mode] [loadbalancing {src-dst-id | src-dst-ox-id}] |
loadbalancing {src-dst-id | src-dst-ox-id} |
name name [interop [mode] [loadbalancing {src-dst-id | src-dst-ox-id}] | loadbalancing {src-dst-id | src-dst-ox-id}] | suspend [interop [mode] [loadbalancing {src-dst-id | src-dst-ox-id}] | loadbalancing {src-dst-id | src-dst-ox-id}] |
suspend [interop [mode] [loadbalancing {src-dst-id | src-dst-ox-id}] | loadbalancing {src-dst-id | src-dst-ox-id}]]

no vsan vsan-id
[interop [mode] [loadbalancing {src-dst-id | src-dst-ox-id}] |
loadbalancing {src-dst-id | src-dst-ox-id} |
name name [interop [mode] [loadbalancing {src-dst-id | src-dst-ox-id}] | loadbalancing {src-dst-id | src-dst-ox-id}] | suspend [interop [mode] [loadbalancing {src-dst-id | src-dst-ox-id}] | loadbalancing {src-dst-id | src-dst-ox-id}] |
suspend [interop [mode] [loadbalancing {src-dst-id | src-dst-ox-id}] | loadbalancing {src-dst-id | src-dst-ox-id}]]

Syntax Description

vsan vsan-id

Specifies the VSAN ID. The range is from 1 to 4094.

interface fc slot/port

(Optional) Specifies the Fibre Channel interface by slot and port number on the switch.

san-port-channel port

Configures the SAN port channel interface specified by the SAN port channel number.

vfc vfc-id

Specifies the virtual Fibre Channel interface.

interop

(Optional) Turns on interoperability mode.

mode

(Optional) Interop mode. The range is from 1 to 4.

loadbalancing

(Optional) Configures the load balancing scheme.

src-dst-id

Sets src-id/dst-id for load-balancing.

src-dst-ox-id

Sets ox-id/src-id/dst-id for load balancing (default).

name name

Assigns a name to the VSAN. The name can be a maximum of 32 characters.

suspend

Suspends the VSAN.


Command Default

None

Command Modes

VSAN database configuration mode

Command History

Release
Modification

4.0(0)N1(1a)

This command was introduced.

4.2(1)N1(1)

The VSAN ID range is increased to 4094.


Usage Guidelines

To use this command, change to the VSAN database mode.

The interface range must be in ascending order and nonoverlapping. You can specify a range using a hyphen and several interfaces using commas:

•The interface range format for a Fibre Channel interface range is

fcslot/port - port , fcslot/port , fcslot/port:

For example, show int fc2/1 - 3 , fc2/4 , fc3/2

•The format for a SAN port channel is

san-port-channel portchannel-number.subinterface-number:

For example, show int san-port-channel 5.1

There are four interop modes:

•Interop mode 1 — Standards based interop mode that requires all other vendors in the fabric to be in interop mode.

•Interop mode 2 — Brocade native mode (Core PID 0).

•Interop mode 3 — Brocade native mode (Core PID 1).

•Interop mode 4 — McData native mode. Before you configure Interop mode 4 (or remove the configuration), you must suspend the VSAN. You should unsuspend the VSAN only after you configure a VSAN-dependent switch WWN with the McData OUI [08:00:88].

The no form of the vsan vsan-id interface command is not supported. To remove a VSAN membership of an interface (for example, interface fc1/8 from VSAN 7), you must assign the interface to another VSAN. The best practice is to assign the interface back to the default VSAN (VSAN 1).

Examples

This example shows how to create multiple fabrics sharing the same physical infrastructure and how to assign ports to VSANs: 

switch(config)# vsan database

switch-config-vsan-db# vsan 2

switch(config-vsan-db)# vsan 2 name TechDoc 

switch(config-vsan-db)# vsan 2 loadbalancing src-dst-id 

switch(config-vsan-db)# vsan 2 loadbalancing src-dst-ox-id 

switch(config-vsan-db)# vsan 2 suspend 

switch(config-vsan-db)# no vsan 2 suspend

switch(config-vsan-db)# end

 
   
 
    
   
 This example shows how to suspend a VSAN and enable Interop mode 4: 
 
    
   
 
    
switch(config)# vsan database

 
   
 
    
   
 
    
switch(config-vsan-db)# vsan 100 suspend

 
   
 
    
   
 
    
switch(config-vsan-db)# vsan 100 interop 4

 
   
 
    
   
 
    
switch(config-vsan-db)# exit

 
   
 
    
   
 
    
 
   
 
    
   
 This example shows how to configure a VSAN to create a FCOE-VLAN to VSAN mapping: 
 
    
   
 
    
switch(config)# vsan database 

 
   
 
    
   
 
    
switch(config-vsan-db)# vsan 377 

 
   
 
    
   
 
    
switch(config-vsan-db)# exit 

 
   
 
    
   
 
    
switch(config)# vlan 30 

 
   
 
    
   
 
    
switch(config-vlan)# fcoe vsan 337 

 
   
 
    
   
 
    
switch(config-vlan)# 

 
   
 
    
   
 
    
 
   
 
    
   
 This example shows how to remove interface fc2/1 from VSAN 7: 
 
    
   
 
    
switch(config)# vsan database 

 
   
 
    
   
 
    
switch(config-vsan-db)# vsan 1 interface fc2/1 

 
   
 
    
   
 
    
switch(config-vsan-db)#

 
   
 
    
   
 
    
 
   
 
    
   
 Related Commands
 
   
 
    
 
      
      
      
 
        
        

          Command 
        
 		 
        
        

          Description 
        
 		 
      
 
      
 
       
 show vsan 
 		 
       
 Displays the configuration information of VSANs. 
 		 
      
 
      
 
       
 show vlan fcoe 
 		 
       
 Displays the FCoE VLAN to VSAN mappings. 
 		 
      
 
      
 
       
 show vsan membership 
 		 
       
 Displays VSAN membership information. 
 		 
      
 
      
 
       
 wwn vsan 
 		 
       
 Configures a WWN for a suspended VSAN that has interop mode 4 enabled. 
 		 
      
 
      
    
 
   
 
   
 
   
 
 
    
     
    
    
    
   
 vsan database 
 
    
   
 To enter Virtual SAN (VSAN) database mode to configure VSAN information and membership, use the vsan database command. 
 
    
   
vsan database 
 
    
   
 Syntax Description 
 
    
   
 This command has no arguments or keywords. 
 
    
   
 Command Default 
 
    
   
 None 
 
    
   
 Command Modes 
 
    
   
 Global configuration mode 
 
    
   
 Command History
 
   
 
    
 
      
      
      
 
        
        

          Release 
        
 		 
        
        

          Modification 
        
 		 
      
 
      
 
       
 4.0(0)N1(1a) 
 		 
       
 This command was introduced. 
 		 
      
 
      
    
 
   
 
   
 
   
 
 
    
   
 Usage Guidelines 
 
    
   
 To exit from the VSAN database configuration mode, use the exit command. 
 
    
   
 Examples 
 
    
   
 This example shows how to enter the VSAN database configuration mode: 
 
    
   
 
    
switch(config)# vsan database 

 
   
 
    
   
 
    
switch(config-vsan-db)# exit 

 
   
 
    
   
 
    
switch(config)# 

 
   
 
    
   
 
    
 
   
 
    
   
 This example shows how to configure the association between a VSAN and virtual Fibre Channel interface: 
 
    
   
 
    
switch# configure terminal

 
   
 
    
   
 
    
switch(config)# vsan database

 
   
 
    
   
 
    
switch(config-vsan-db)# vsan 2 interface vfc 4

 
   
 
    
   
 
    
switch(config-vsan-db)#

 
   
 
    
   
 
    
 
   
 
    
   
 Related Commands
 
   
 
    
 
      
      
      
 
        
        

          Command 
        
 		 
        
        

          Description 
        
 		 
      
 
      
 
       
 show vsan 
 		 
       
 Displays the configuration information of VSANs. 
 		 
      
 
      
 
       
 show vlan fcoe 
 		 
       
 Displays the FCoE VLAN to VSAN mappings. 
 		 
      
 
      
 
       
 show vsan membership 
 		 
       
 Displays VSAN membership information. 
 		 
      
 
      
 
       
 vsan 
 		 
       
 Configures VSAN information or membership.