MSTP and RSTP

DDSN · Created May 14, 2020 11:59:03

Hi bunio74,

Switches using RSTP and STP can be connected. STP protocols include the STP, RSTP, and MSTP protocols. These protocols support forward compatibility and connection to a certain extent. The following table describes the connection effects.

Scenario	Connection Effect
An STP device connects to an RSTP device.	RSTP connects to the STP port, and the mode automatically changes to STP to implement slow convergence.
An RSTP device connects to an MSTP device.	The CIST can be connected. That is, instance 0 can be connected. The connection ports are inter-AS ports.
An MSTP device connects to an STP device.	MSTP connects to the STP port, and the mode automatically changes to STP to implement slow convergence.

I hope it helps!

user_3445655 · Created May 14, 2020 11:53:22

Hi,
For MSTP, it runs RSTP per instance, in other words, it could be compatible with the RSTP correctly.

Unicef · Created May 14, 2020 11:57:25

If an MSTP switch detects that the neighboring switch works in RSTP mode and MSTP switch work with RSTP mode.

DDSN · Created May 14, 2020 11:59:03

Hi bunio74,

Switches using RSTP and STP can be connected. STP protocols include the STP, RSTP, and MSTP protocols. These protocols support forward compatibility and connection to a certain extent. The following table describes the connection effects.

Scenario	Connection Effect
An STP device connects to an RSTP device.	RSTP connects to the STP port, and the mode automatically changes to STP to implement slow convergence.
An RSTP device connects to an MSTP device.	The CIST can be connected. That is, instance 0 can be connected. The connection ports are inter-AS ports.
An MSTP device connects to an STP device.	MSTP connects to the STP port, and the mode automatically changes to STP to implement slow convergence.

I hope it helps!

ernesto_cupet6 · Created May 14, 2020 12:13:48

Hello

I addition:
MSTP can recognize RSTP BPDUs and, conversely, RSTP can recognize MSTP BPDUs. However, MSTP and STP cannot recognize each other's BPDUs. To enable devices running different spanning tree protocols to interwork with each other, interfaces of an MSTP-enabled switch connected to devices running STP automatically transition to STP mode; other interfaces continue to work in MSTP mode.
https://support.huawei.com/enterprise/en/doc/EDOC1000178168/299644e0/configuring-the-mstp-mode

smileymind · Created Jul 29, 2021 05:17:54

great

MSTP and RSTP

Recommended answer

Third Party’s Trade Secret

My Followers

Enterprise

Consumer

Corporate

Carriers

MSTP and RSTP

Recommended answer

Third Party’s Trade Secret

My Followers