Instance interface order

Last Updated : Dec 02, 2025 |

Within a Virtual Machine (VM), the SBC/EMS application expects the following interface order:

  1. M1 (Primary management interface)

  2. A1 (Primary access-side data interface)

  3. B1 (Primary core-side data interface)

  4. M2 (Secondary management/HA heartbeat (SBC only, direct link))

  5. A2 (Secondary access-side data interface (SBC only, optional))

  6. B2 (Secondary core-side data interface (SBC only, optional))

Note:

For EMS-only deployments, the minimum interface requirement is M1, with M2 available for optional use.

For SBC-only deployments, the minimum interface requirement is M1, A1, B1, and M2, with A2 and B2 for high-capacity six-interface deployments.

For deployments combining EMS and SBC, the minimum interface requirement is M1, A1, B1, and M2.