QoS using BVI Interfaces

[omarmontes]

Hi guys.. picture this 3 routers scenario:

R1<-------->R2<-------->R3

R2 is using a BVI interface to bridge traffic from R1 to R3 (both routers configured in the same segment). I'm trying to tag some traffic from R1 to R3 using a policy-map, but haven't been succesful. 

I'v tried this configurations:

Using input policy-map in the physical interface of R2 facing R1

Using output policy-map in the physical interface of R2 facing R3

Using input and output policy-map in the BVI interfaces of R2

Non of them worked. I see zero packets matched in the policy-maps, not even in class-default.

Any thougths? I know BVI interfaces have some limitations regarding QoS, but I thought classification was possible. Should this work?

[Giuseppe Larosa]

Hello @omarmontes ,

what can you do depends on HW implementation.

What kind of routers are R1, R2, R3 ?

if you are using an emulation SW like GNS3, VIRL or NV-EVO you are likely facing emulation issues.

if your routers are real devices can you post the show version of R2?

Hope to help

Giuseppe

[Georg Pauwen]

Hello,

I just tested in GNS3, if your config looks something like below, the QoS on the BVI should work:

policy-map DEFAULT
class class-default
police 8000
!
bridge irb
!
interface Loopback2
ip address 2.2.2.2 255.255.255.255
!
interface GigabitEthernet0/0
no ip address
duplex auto
speed auto
media-type rj45
bridge-group 1
!
interface GigabitEthernet0/1
no ip address
duplex auto
speed auto
media-type rj45
bridge-group 1
!
interface BVI1
ip address 192.168.10.2 255.255.255.0
service-policy input DEFAULT
service-policy output DEFAULT
!
router eigrp 1
network 0.0.0.0
!
bridge 1 protocol ieee
bridge 1 route ip