...
When peer-port is running and ICCP is established, the primary device election happens. The peer with the lowest bridge MAC address will be acting as a primary device and system-id will be selected. This system-id is used for STP BPDU bridge identifier and LACP system ID. The MLAG requires enabled STP, RSTP or RSTP protocol, the MSTP is not supportedMSTP protocol. Use the same STP priority and the same STP configuration on dual-connected bridge ports on both nodes. When MLAG bridges are elected as STP root, then both devices will show as root bridges under the bridge monitor.
...
| Warning |
|---|
The MLAG requires enabled STP, RSTP or RSTP protocol, the MSTP is not supportedMSTP protocol. Use the same STP priority and the same STP configuration on dual-connected bridge ports on both nodes. |
...