S12700 V200R010C00 Configuration Guide - Ethernet Switching

This document describes the configuration of Ethernet services, including configuring link aggregation, VLANs, Voice VLAN, VLAN mapping, QinQ, GVRP, MAC table, STP/RSTP/MSTP, SEP, and so on.

About This Document
Ethernet Switching Overview
- Introduction to Ethernet Switching
- Basic Concepts of Ethernet
- Switching on the Ethernet
  - Layer 2 Switching
  - Layer 3 Switching
- Application Environment
  - Building an Enterprise Network
MAC Address Table Configuration
- Introduction to the MAC Address
- Principles
- Application
- Configuration Task Summary
- Licensing Requirements and Limitations for MAC Address Tables
- Default Configuration
- Configuring a MAC Address Table
- Configuring MAC Address Flapping Prevention
  - Configuring a MAC Address Learning Priority for an Interface
  - Preventing MAC Address Flapping Between Interfaces with the Same Priority
- Configuring MAC Address Flapping Detection
- Configuring the Switch to Discard Packets with an All-0 MAC Address
- Configuring the Switch to Discard Packets That Do Not Match Any MAC Address Entry
- Enabling MAC Address-Triggered ARP Entry Update
- Enabling Port Bridge
- Configuring Re-marking of Destination MAC Addresses
- Maintaining the MAC Address Table
- Configuration Examples
- Common Misconfigurations
  - MAC Address Entries Failed to Be Learned on an Interface
- FAQs
Link Aggregation Configuration
- Introduction to Link Aggregation
- Principles
- Applications
- Configuration Task Summary
- Licensing Requirements and Limitations for Link Aggregation
- Default Settings
- Configuring Link Aggregation in Manual Mode
- Configuring Link Aggregation in LACP Mode
- Configuring Preferential Forwarding of Local Traffic in a CSS
- Creating an Eth-Trunk Sub-interface
- Configuring an E-Trunk
- Maintaining Link Aggregation
- Configuration Examples
- Common Configuration Errors
  - Traffic Is Unevenly Load Balanced Among Eth-Trunk Member Interfaces Because the Load Balancing Mode Is Incorrect
  - Eth-Trunk at Both Ends Cannot Be Up Because the Lower Threshold for the Number of Active Interfaces Is Incorrect
- FAQ
VLAN Configuration
- VLAN Overview
- Principles
- Applications
- Configuration Task Summary
- Licensing Requirements and Limitations for VLANs
- Default Configuration
- Configuring VLAN Technology
- Maintaining VLANs
- Configuration Examples
- Common Misconfigurations
- FAQ
VLAN Aggregation Configuration
- Introduction to VLAN Aggregation
- Principles
- Application Scenario
- Licensing Requirements and Limitations for VLAN Aggregation
- Default Configuration
- Configuring VLAN Aggregation
- Configuration Examples
  - Example for Configuring VLAN Aggregation
- FAQ
  - How Do I Implement Communication Between Specific Sub-VLANs in a Super-VLAN
  - How Should a Traffic Policy Be Configured in a Super-VLAN or Sub-VLAN to Make the Traffic Policy Take Effect
VLAN Switch Configuration
- Introduction to VLAN Switch
- Application Scenario
- Licensing Requirements and Limitations for VLAN Switch
- Default Configuration
- Configuring VLAN Switch
- Maintaining VLAN Switch
- Configuration Examples
  - Example for Implementing Inter-VLAN Communication Using VLAN Switch
MUX VLAN Configuration
- Introduction to MUX VLAN
- Licensing Requirements and Limitations for MUX VLANs
- Default Configuration
- Configuring the MUX VLAN
- Configuration Examples
  - Example for Configuring MUX VLAN on the Access Device
  - Example for Configuring MUX VLAN on the Aggregation Device
VLAN Termination Configuration
- Introduction to VLAN Termination
- Application Scenario
- Configuration Task Summary
- Licensing Requirements and Limitations for VLAN Termination
- Default Configuration
- Using a Dot1q Termination Sub-interface to Implement Inter-VLAN Communication
- Configuring a Dot1q Termination Sub-interface and Connecting It to an L2VPN
- Configuring a Dot1q Termination Sub-interface and Connecting It to an L3VPN
- Configuring a QinQ Termination Sub-interface and Connecting It to an L2VPN
- Configuring a QinQ Termination Sub-interface and Connecting It to an L3VPN
- Configuration Examples
Voice VLAN Configuration
- Introduction to Voice VLAN
- Typical Networking
- Principles
- Applicable Scenario
- Licensing Requirements and Limitations for Voice VLAN
- Default Configuration
- Configuring a MAC Address-based Voice VLAN
- Configuring a VLAN ID-based Voice VLAN
- Configuration Examples
  - Example for Configuring a MAC Address-based Voice VLAN (IP Phones Send Untagged Voice Packets)
  - Example for Configuring a VLAN ID-based Voice VLAN (IP Phones Send Tagged Voice Packets)
QinQ Configuration
- Introduction to QinQ
- Principles
- Applications
  - Public User Services on a Metro Ethernet Network
  - Enterprise Network Connection Through Private Lines
- Configuration Task Summary
- Licensing Requirements and Limitations for QinQ
- Configuring Basic QinQ
- Configuring Selective QinQ
- Configuring the TPID Value in an Outer VLAN Tag
- Configuring the Device to Add Double VLAN Tags to Untagged Packets
- Configuring QinQ Mapping
  - Configuring 1-to-1 QinQ Mapping
  - Configuring 2-to-1 QinQ Mapping
- Maintaining QinQ
  - Displaying VLAN Translation Resource Usage
- Configuration Examples
- Common Misconfigurations
  - QinQ Traffic Forwarding Fails Because the Outer VLAN Is Not Created
  - QinQ Traffic Forwarding Fails Because the Interface Does Not Transparently Transmit the Outer VLAN ID
- FAQ
VLAN Mapping Configuration
- Introduction to VLAN Mapping
- Principles
- Applications
- Licensing Requirements and Limitations for VLAN Mapping
- Configuring VLAN ID-based VLAN Mapping
- Configuring 802.1p Priority-based VLAN Mapping
- Configuring MQC-based VLAN Mapping
- Maintaining VLAN Mapping
  - Displaying VLAN Translation Resource Usage
- Configuration Examples
- Common Configuration Errors
  - Communication Failure After VLAN Mapping Configuration
GVRP Configuration
- Introduction to GVRP
- Principles
- Applications
- Licensing Requirements and Limitations for GVRP
- Default Configuration
- Configuring GVRP
- Maintaining GVRP
  - Clearing GVRP Statistics
- Configuration Examples
  - Example for Configuring GVRP
- FAQ
  - Why Is the CPU Usage High When VLANs Are Created or Deleted Through GVRP in Default Configuration?
VCMP Configuration
- Introduction to VCMP
- Principles
  - VCMP Concepts
  - Implementation
- Applicable Scenario
- Licensing Requirements and Limitations for VCMP
- Default Configuration
- Configuring VCMP
- Maintaining VCMP
  - Displaying VCMP Running Information
  - Clearing VCMP Running Information
- Configuration Examples
  - Example for Configuring VCMP to Implement Centralized VLAN Management
STP/RSTP Configuration
- Introduction to STP/RSTP
- Principles
- Applications
- Configuration Task Summary
- Licensing Requirements and Limitations for STP/RSTP
- Default Configuration
- Configuring Basic STP/RSTP Functions
- Setting STP Parameters that Affect STP Convergence
- Setting RSTP Parameters that Affect RSTP Convergence
- Configuring RSTP Protection Functions
- Setting Parameters for Interoperation Between Huawei and Non-Huawei Devices
- Maintaining STP/RSTP
  - Clearing STP/RSTP Statistics
  - Monitoring STP/RSTP Topology Change Statistics
- Configuration Examples
  - Example for Configuring Basic STP Functions
  - Example for Configuring Basic RSTP Functions
- FAQ
MSTP Configuration
- Introduction to MSTP
- MSTP Principles
- Application Environment
- Configuration Task Summary
- Licensing Requirements and Limitations for MSTP
- Default Configuration
- Configuring Basic MSTP Functions
- Configuring MSTP Multi-Process
- Configuring MSTP Parameters on an Interface
- Configuring MSTP Protection Functions
- Configuring MSTP Interoperability Between Huawei and Non-Huawei Devices
- Maintaining MSTP
  - Clearing MSTP Statistics
  - Monitoring the Statistics on MSTP Topology Changes
- Configuration Examples
- FAQ
VBST Configuration
- Introduction to VBST
- Principles
- Applicable Scenario
- Configuration Task Summary
- Licensing Requirements and Limitations for VBST
- Default Configuration
- Configuring Basic VBST Functions
- Setting VBST Parameters That Affect VBST Convergence
- Configuring Protection Functions of VBST
- Setting Parameters for Interworking Between a Huawei Datacom Device and a Non-Huawei Device
- Maintaining VBST
  - Displaying VBST Running Information and Statistics
  - Clearing VBST Statistics
- Configuration Examples
  - Example for Configuring VBST
SEP Configuration
- Introduction to SEP
- Principles
- Applications
- Configuration Task Summary
- Licensing Requirements and Limitations for SEP
- Configuring Basic SEP Functions
- Specifying an Interface to Block
- Configuring SEP Multi-Instance
- Configuring the Topology Change Notification Function
- Maintaining SEP
  - Clearing SEP Statistics
- Configuration Examples
RRPP Configuration
- Introduction to RRPP
- Principles
- Application Scenarios
- Configuration Task Summary
- Licensing Requirements and Limitations for RRPP
- Default Configuration
- Configuring RRPP
- Configuring RRPP Snooping
- Maintaining RRPP
  - Clearing RRPP Statistics
- Configuration Examples
- Common Configuration Errors
  - A Loop Occurs After the RRPP Configuration is Complete
  - After the Primary Port of a Transit Node on an RRPP Ring Network Becomes Down and Then Recovers, the Transit Node and Other Transit Nodes Cannot Register With the Master Node
- FAQ
ERPS (G.8032) Configuration
- Introduction to ERPS
- Principles
- Applicable Scenario
- Configuration Task Summary
- Licensing Requirements and Limitations for ERPS
- Default Settings
- Configuring ERPSv1
- Configuring ERPSv2
- Maintaining ERPS
  - Clearing ERPS Statistics
- Configuration Examples
  - Example for Configuring ERPS Multi-instance
  - Example for Configuring Intersecting ERPS Rings
- Common Configuration Errors
  - Traffic Forwarding Fails in an ERPS Ring
LDT and LBDT Configuration
- Introduction to LBDT and LDT
- Principles
- Applicable Scenario
- Licensing Requirements and Limitations for LDT and LBDT
- Default Configuration
- Configuring LDT to Detect Loops
- Configuring Automatic LBDT
- Configuring Manual LBDT
- Configuration Examples
Layer 2 Protocol Transparent Transmission Configuration
- Introduction to Layer 2 Protocol Transparent Transmission
- Principles
- Application Environment
- Configuration Task Summary
- Licensing Requirements and Limitations for Layer 2 Protocol Transparent Transmission
- Configuring Interface-based Layer 2 Protocol Transparent Transmission
- Configuring VLAN-based Layer 2 Protocol Transparent Transmission
- Configuring QinQ-based Layer 2 Protocol Transparent Transmission
- Configuration Examples
- FAQ

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A Switch Connecting to a CSS Through Link Aggregation

In Figure 3-17, the switch connects to a CSS using link aggregation, and the Eth-Trunk is configured to preferentially forward local traffic. Preferentially forwarding local traffic ensures reliable transmission, reduces the load on devices in the CSS, and improves forwarding efficiency.

Figure 3-17 Preferentially forwarding local traffic

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Updated: 2019-08-21

Document ID: EDOC1000142081

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S12700 V200R010C00 Configuration Guide - Ethernet Switching

This document describes the configuration of Ethernet services, including configuring link aggregation, VLANs, Voice VLAN, VLAN mapping, QinQ, GVRP, MAC table, STP/RSTP/MSTP, SEP, and so on.

A Switch Connecting to a CSS Through Link Aggregation

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S12700 V200R010C00 Configuration Guide - Ethernet Switching

This document describes the configuration of Ethernet services, including configuring link aggregation, VLANs, Voice VLAN, VLAN mapping, QinQ, GVRP, MAC table, STP/RSTP/MSTP, SEP, and so on.

A Switch Connecting to a CSS Through Link Aggregation

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