Unable to Create VLAN

[dseagren1]

We just recently purchased our first ISR 4431 routers and for some reason I seem to be unable to create a vlan.  I'm new to IOS XE so I'm hoping this is something really simple that I'm missing.  The routers have the IP Base license on them which according to the feature navigator should support vlans.  When i go into global config and enter 'vlan ?' my only option is 'accounting'.

Thx

[Reza Sharifi]

Usually with routers, you can't create vlans becuase they are layer-3 devices.  In addition to the 4400 series, the ASR series have the same option (vlan accounting) only.

What do you need to create a vlan for?

HTH

[dseagren1]

Seems strange that a basic construct such as vlan wouldn't be supported.

On some of our other configurations we've created a vlan and added the an IP and glbp IP/configuration to the vlan.  This allowed us to add mulitple interfaces to that vlan and have multiple interfaces on one router participate in glbp for redundancy purposes when etherchannel wasn't an option.

[Reza Sharifi]

Usually that is function of the switch module you can add to specific routers (2800, 3800, 3900, etc..) I don't think the 4400 series support any switch modules.

HTH

[Masoud Pourshabanian]

Hello,

I am not familiar with ISR 4431, but in cisco routers, you do not have this command. In IOS, you need to use vlan database in privilage mode to be able to create VLAN. I am not sure your router supports that. What do you need VLAN for?

If you need to confing router on stick. you need to configure subinterface.

interface X/X/X.X

encapsulation dot1q vlan-id

Masoud

[Ganesh Hariharan]

We just recently purchased our first ISR 4431 routers and for some reason I seem to be unable to create a vlan.  I'm new to IOS XE so I'm hoping this is something really simple that I'm missing.  The routers have the IP Base license on them which according to the feature navigator should support vlans.  When i go into global config and enter 'vlan ?' my only option is 'accounting'.Thx

Hello,

Normally Ether switch Module with cisco routers used to give switching functionality.Have a look on the Ether switch module configuration example which normally intergarted with ISR for basic switching functionality.

Without ESM, Router can only perfom routing functionality based on IOS installed.

Etherswitch Module on ISR

Hope it Helps..

-GI

Rate if it Helpss

[saqib@mindless.com]

Had this issue with 4451 + 16.4.3 IOS.... 

turns out you have to reload the router after initialising the ether switch service module:

Router(config)#!
Router(config)#ethernet-internal subslot 2/0
Router(config-ether-internal)# platform switchport svi
Ena/Dis SVI needs a OIR or Router reload
Router(config-ether-internal)#!

after saving the config and rebooting vlan became available 

[Tom65]

While I can enter this command in my primary 4451, some reason I cannot enter this command on my secondary 4451. Do you know why that would be?

[JorgeAbalo70388]

Did you found a solution for this issue?. I have the same problem.

[jsnet]

The Solution:

#vlan database

(vlan)#

(vlan)#vlan 200

VLAN 200 added:

Name: VLAN0200