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ME60 V800R010C10SPC500 Configuration Guide - LAN Access and MAN Access 01

This is ME60 V800R010C10SPC500 Configuration Guide - LAN Access and MAN Access
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Configuring STP/RSTP Interoperability Between Huawei Devices and Non-Huawei Devices

Configuring STP/RSTP Interoperability Between Huawei Devices and Non-Huawei Devices

To supports STP/Rapid Spanning Tree Protocol (RSTP) interoperability between Huawei devices and non-Huawei devices, proper parameters are required on Huawei devices running STP/RSTP to ensure nonstop communication.

Applicable Environment

On a network running STP/RSTP, inconsistent protocol packet formats and Bridge Protocol Data Unit (BPDU) keys may lead to a communication failure. Configuring proper STP/RSTP parameters on Huawei devices ensures interoperability between Huawei devices and non-Huawei devices.

Pre-configuration Tasks

Before configuring STP/RSTP interoperability between Huawei devices and non-Huawei devices, complete the following task:
  • Configuring basic STP/RSTP functions

Configuration Procedures

You can choose one or more configuration tasks (excluding "Checking the Configuration") as required.

Configuring the Proposal/Agreement Mechanism

To enable Huawei Datacom devices to communicate with non-Huawei devices, a proper rapid transition mechanism needs to be configured on Huawei devices based on the Proposal/Agreement mechanism on non-Huawei devices.

Context

The rapid transition mechanism is also called the Proposal/Agreement mechanism. Switching devices currently support the following modes:

  • Enhanced mode: The current interface counts a root port when it counts the synchronization flag bit.
    • An upstream device sends a Proposal message to a downstream device, requesting rapid status transition. After receiving the message, the downstream device sets the port connected to the upstream device to a root port and blocks all non-edge ports.

    • The upstream device then sends an Agreement message to the downstream device. After the downstream device receives the message, the root port transitions to the Forwarding state.

    • The downstream device responds the Proposal message with an Agreement message. After receiving the message, the upstream device sets the port connected to the downstream device as a designated port. The designated port then transitions to the Forwarding state.

  • Common mode: The current interface ignores the root port when it counts the synchronization flag bit.
    • An upstream device sends a Proposal message to a downstream device, requesting rapid status transition. After receiving the message, the downstream device sets the port connected to the upstream device to a root port and blocks all non-edge ports. The root port then transitions to the Forwarding state.

    • The downstream device responds the Proposal message with an Agreement message. After receiving the message, the upstream device sets the port connected to the downstream device as a designated port. The designated port then transitions to the Forwarding state.

When Huawei datacom devices are interworking with non-Huawei devices, select either mode depending on the Proposal/Agreement mechanisms on non-Huawei devices.

Applicable Environment

On a network running STP/RSTP, inconsistent protocol packet formats and BPDU keys may lead to a communication failure. Configuring proper STP/RSTP parameters on Huawei devices ensures interoperability between Huawei devices and non-Huawei devices.

Pre-configuration Tasks

Before configuring STP/RSTP interoperability between Huawei devices and non-Huawei devices, complete the following task:
  • Configuring basic STP/RSTP functions

Procedure

  1. Run system-view

    The system view is displayed.

  2. Run interface interface-type interface-number

    The view of the Ethernet interface participating in STP calculation is displayed.

    NOTE:
    The following configuration can be configured both on a Layer 2 interface and a Layer 3 interface.

  3. Run stp no-agreement-check

    The common rapid transition mechanism is configured.

  4. Run commit

    The configuration is committed.

Checking the Configuration

Run the display this command in the view of the interface participating in STP calculation to view the fast transition mechanism configured on the interface. Use the following command output as an example:
[~HUAWEI-GigabitEthernet1/0/1] display this
#
interface GigabitEthernet1/0/1
 portswitch 
 undo shutdown
 stp no-agreement-check
return

(Optional) Configuring an Interface to Transparently Transmit HVRP Packets

Procedure

  1. Run the system-view command on a switch in an STP domain:

    The system view is displayed.

  2. Run interface gigabitethernet interface-number

    The GE interface view is displayed.

  3. Run portswitch

    The working mode of the interface is switched to the Layer 2 mode.

  4. Run stp enable

    STP is enabled on the interface.

  5. Run hvrp-transport

    The interface is configured to transparently transmit HVRP packets.

    NOTE:

    The command is supported only in the multi-instance scenario rather than the multi-process scenario.

Verifying the STP/RSTP Interoperability Configuration

After Multiple Spanning Tree Protocol (MSTP) parameters are configured for the interoperability between Huawei devices and non-Huawei devices, verify the configuration.

Prerequisites

Parameters have been configured to ensure MSTP interoperability between Huawei devices and non-Huawei devices.

Procedure

  • Run the display stp [ interface interface-type interface-number ] [ brief ] command to view spanning-tree status.

Example

Run the display stp command to view the working mode of the spanning tree and the Bridge Protocol Data Unit (BPDU) format. For example:
<HUAWEI> display stp interface gigabitethernet 1/0/1
----[Port1(GigabitEthernet1/0/1)][FORWARDING]----
 Port Protocol       :enabled
 Port Role           :Root Port
 Port Priority       :128
 Port Cost(Legacy)   :Config=auto / Active=20
 Desg. Bridge/Port   :0.00e0-e70a-4d00 / 128.5
 Port Edged          :Config=default / Active=disabled
 Point-to-point      :Config=auto / Active=true
 Transit Limit       :147 packets/hello-time
 Protection Type     :None
 Port Stp Mode       :RSTP
 Port Protocol Type  :Config=auto / Active=dot1s
 BPDU Encapsulation:Config=stp / Active=stp
 PortTimes           :Hello 2s MaxAge 20s FwDly 15s RemHop 0
 TC or TCN send      :1
 TC or TCN received  :0
 BPDU Sent           :4
          TCN: 0, Config: 0, RST: 4, MST: 0
 BPDU Received       :22
          TCN: 0, Config: 0, RST: 22, MST: 0
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Updated: 2019-01-04

Document ID: EDOC1100059440

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