Routing

Hello,

We are encountering an issue with an MX240 device that we are using as a LNS. Specifically, we are trying to assign a unique MAC address to each unit of an aggregate interface (ae). This is necessary because our provider requires us to have one MAC address per VLAN.

However, we've discovered that the MX240 does not allow us to commit the configuration when we attempt to assign a unique MAC address to each unit of an ae interface:

Configuration on ae5:

set interfaces ae5 unit 4050 description CPE_MAQUETTE_LAB
set interfaces ae5 unit 4050 vlan-id 4050
set interfaces ae5 unit 4050 family pppoe duplicate-protection
set interfaces ae5 unit 4050 family pppoe dynamic-profile DP_PPPoE_L2_LAB
set interface ae5 unit4050 mac <-- don't exist

Setup Diagram:

ae5.1000[11:22:33:44:55:66] -- [LNS_MX240]

                              |
ae5.4050[aa:bb:cc:dd:ee:ff] -- 

To work around this, we tried creating individual IRB interfaces for each VLAN, each with a specific MAC address. Here's the example for vlan4050:

set interfaces ae5 vlan-tagging
set interfaces ae5 encapsulation extended-vlan-bridge
set interfaces ae5 unit 4050 vlan-id 4050

set bridge-domains VLAN4050 vlan-id 4050
set bridge-domains VLAN4050 interface ae5.4050
set bridge-domains VLAN4050 routing-interface irb.4050

set interfaces irb unit 4050 family pppoe dynamic-profile DP_PPPoE_L2_LAB
set interfaces irb unit 4050 mac aa:bb:cc:dd:ee:ff

The configuration appears to be correct, but we are not seeing any traffic on the IRB interface.

Could you please advise if it's possible to assign a unique MAC address per unit in an ae interface or through IRB interfaces? Any guidance or additional steps we might be missing would be greatly appreciated.

Thank you for your assistance.