Configuring Virtual MAC Address

To configure the remote virtual MAC address in the DNN profile, use the following sample configuration:

config 
   profile dnn dnnprofile_name 
      virtual-mac mac_address 
      exit 

NOTES:

  • profile dnn dnnprofile_name : Specify the DNN profile name. dnnprofile_name must be an alphanumeric string.

  • virtual-mac mac_address : Specify the remote virtual MAC address used to generate interface ID for UE. mac_address must be a string in the MAC address pattern.

In release 2021.01 and later, the SMF generates unique 64-bit interface ID which is non-EUI-64 format by using SBI VIP address and CommonId of the subscriber.

That is, IPv6 interface ID = VIP-IP (4 bytes) + CommonId (4 bytes)

By default, virtual-mac CLI command is now disabled under DNN configuration.

Interface ID for Different Messages

Call Model

PDU Session Establishment Accept

Create Session Response

5G

N11-SBI-VIP+CommonID

4G

GTP-VIP+CommonID

WiFi

GTP-VIP+CommonID

5G->4G

—(N26 HO - there are NAS contents during handover)

4G->5G

— (N26 HO - there are NAS contents during handover)

4G->WiFi

GTP-VIP+CommonID (Same as 4G)

WiFi->4G

GTP-VIP+CommonID (Same as 4G)

5G->WiFi

N11-SBI-VIP+CommonID (Same as 5G)

WiFi->5G

GTP-VIP+CommonID (Same as WiFi)