Cisco ISR 4331 /k9 (Version 15.4(3)S4)

[amged.hazem]

Dear Team;

- Is this router supprorts the BVI configuration?  
 
for example:

Router(config)#bridge irb
Router(config)#bridge 1 protocol ieee
Router(config)#bridge 1 route ip
Router(config)#interface bvi1
Router(config-if)#ip address x.x.x.x 255.255.255.252
Router(config-if)#interface fa0/0.yyy
Router(config-subif)#bridge-group 1
Router(config-subif)#bridge-group 1 spanning-disabled

- And also if it supports the encapsulation dot1Q under the subinterface.

- Is there any upgrade for the IOS to support this configuration?

Best Regards

[Georg Pauwen]

Hello,

both IRB and dot1Q for subinterfaces have been around for a very long time, the ISR supports both. You don't need to upgrade.

[chethan.k1]

Hi,

Even I am facing same issue on IOS Version 15.4(3)S4, Router model: ISR4331/K9

I need below config to apply:

interface GigabitEthernet0/0/0.999
 description *** Management VLAN ***
 encapsulation dot1Q 999 native
 bridge-group 1

!

interface GigabitEthernet0/0/2.999
 description *** Management VLAN ***
 encapsulation dot1Q 999 native
 bridge-group 1
!
interface BVI1
ip address  10.X.X.X 255.255.255.192
!

But "bridge-group 1" command is not accepted, as shown below:

ROUTER(config)#interface GigabitEthernet0/0/0.999
ROUTER(config-subif)# description *** Management VLAN ***
ROUTER(config-subif)# encapsulation dot1Q 999 native
ROUTER(config-subif)# bridge-group 1
                                     ^
% Invalid input detected at '^' marker.

ROUTER(config-subif)#

Please suggest, whether above IOS Version support this command or not?

[Georg Pauwen]

Hello,

on the 4331, the syntax is different. You work with BDIs instead of BVIs, and bridge domains instead of bridge groups. It would look something like this (not sure about the subinterfaces):

interface Gig0/0/0.999
service instance 999 ethernet
encapsulation dot1q 999
rewrite ingress tag pop 1 symmetric
bridge-domain 999

interface BDI999
ip address X.X.X.X 255.255.255.0
no shut

[chethan.k1]

Thanks gpauwen:)

you are right, and to update "service instance XXX ethernet" config is not accepted under Subinterfaces and only accepted under main interface.

[Georg Pauwen]

Hello,

check my post below, the syntax has changed for the ISR.