Configuration Examples for MSTP

Example for Configuring Basic MSTP Functions

This example shows how to configure basic MSTP functions.

Example for Configuring MSTP Multi-process for Layer 2 Single-Access Rings and Layer 2 Multi-Access Rings

Multiple Spanning Tree Protocol (MSTP) multi-process enables different Layer 2 access rings to carry different services.

Example for Configuring E-STP Using Inter-AS Option A in LDP Mode

To implement E-STP using inter-AS Option A in LDP mode, configure service VSIs in each AS and bind Layer 3 sub-interfaces to VSIs for inter-AS communication; configure mVSIs on the NPEs in the same AS and enable STP for the mPWs; enable STP on Layer 3 interfaces that connect inter-AS NPEs.

Example for Configuring E-STP Using Inter-AS PWs in LDP Mode

To implement E-STP using inter-AS PWs in LDP mode, configure service VSIs and mVSIs on inter-AS and intra-AS NPEs and enable STP for mPWs.

Example for Configuring E-STP in CE Dual-homing Scenarios

When configuring E-STP on a network on which a CE is dual-homed to two PEs, enable STP for the CE1-PE1 link, CE1-PE2 link, and PE1-PE2 mPW.

Example for Configuring MSTP in an EVC Model

This section provides an example for configuring MSTP basic functions to prevent loops in an EVC model.