Quidway S3500-EA Series Operation Manual

Ethernet switches

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Operation Manual - QinQ-BPDU Tunnel
Quidway S3500-EA Series Ethernet Switches
Chapter 1 QinQ Configuration ..................................................................................................... 1-1
1.1 Introduction to QinQ........................................................................................................... 1-1
1.1.1 Understanding QinQ ............................................................................................... 1-1
1.1.2 Implementations of QinQ ........................................................................................ 1-2
1.1.3 Adjustable TPID Value of QinQ Frames ................................................................. 1-2
1.2 Basic QinQ Configuration .................................................................................................. 1-3
1.3 Selective QinQ Configuration ............................................................................................ 1-3
1.4 Adjustable TPID Configuration .......................................................................................... 1-4
1.5 QinQ Configuration Example ............................................................................................. 1-5
Chapter 2 BPDU Tunnel Configuration ....................................................................................... 2-1
2.1 Introduction to BPDU Tunnel ............................................................................................. 2-1
2.1.1 Problems in QinQ-Enabled Network ....................................................................... 2-1
2.1.2 Why BPDU Tunnel .................................................................................................. 2-1
2.2 BPDU Tunnel Configuration .............................................................................................. 2-3
2.2.1 Configuration Prerequisites..................................................................................... 2-3
2.2.2 Configuring BPDU Tunnel....................................................................................... 2-3
2.3 BPDU Tunnel Configuration Example ............................................................................... 2-4

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Summary of Contents for Quidway S3500-EA Series

  • Page 1: Table Of Contents

    Operation Manual - QinQ-BPDU Tunnel Quidway S3500-EA Series Ethernet Switches Table of Contents Table of Contents Chapter 1 QinQ Configuration ..................... 1-1 1.1 Introduction to QinQ......................1-1 1.1.1 Understanding QinQ ....................1-1 1.1.2 Implementations of QinQ ..................1-2 1.1.3 Adjustable TPID Value of QinQ Frames ..............1-2 1.2 Basic QinQ Configuration ....................
  • Page 2: Chapter 1 Qinq Configuration

    VLAN are required to isolate users, especially in metropolitan area networks (MANs), and 4,094 VLANs are far from satisfying such requirements. The port QinQ feature provided by the Quidway S3500-EA series Ethernet switches enables the encapsulation of double VLAN tags within an Ethernet frame, with the inner VLAN tag being the customer network VLAN tag while the outer one being the VLAN tag assigned by the service provider to the customer.
  • Page 3: Implementations Of Qinq

    Operation Manual - QinQ-BPDU Tunnel Quidway S3500-EA Series Ethernet Switches Chapter 1 QinQ Configuration Note: The QinQ feature requires configurations only on the service provider network, and not on the customer network. 1.1.2 Implementations of QinQ There are two types of QinQ implementations: basic QinQ and selective QinQ.
  • Page 4: Basic Qinq Configuration

    Operation Manual - QinQ-BPDU Tunnel Quidway S3500-EA Series Ethernet Switches Chapter 1 QinQ Configuration before forwarding it. In this way, a QinQ frame sent to the public network can be of a specific protocol type, thus implementing interoperability with devices of other vendors.
  • Page 5: Adjustable Tpid Configuration

    Operation Manual - QinQ-BPDU Tunnel Quidway S3500-EA Series Ethernet Switches Chapter 1 QinQ Configuration Follow these steps to configure the selective QinQ function To do... Use the command... Remarks — Enter system view system-view Enter Use either command interface interface-type...
  • Page 6: Qinq Configuration Example

    0x8100 by default Note: The S3500-EA series Ethernet switches support only one TPID value at a time besides that defined in IEEE 802.1Q. That is, the TPID values configured for multiple ports of a switch must be the same.
  • Page 7 Operation Manual - QinQ-BPDU Tunnel Quidway S3500-EA Series Ethernet Switches Chapter 1 QinQ Configuration III. Configuration procedure Note: With this configuration, the user must allow the QinQ packets to pass between the devices of the service providers. Configuration on Provider 1 # Enter system view <Sysname>...
  • Page 8 Operation Manual - QinQ-BPDU Tunnel Quidway S3500-EA Series Ethernet Switches Chapter 1 QinQ Configuration <Sysname> system-view [Sysname] interface Ethernet 1/0/3 [Sysname-Ethernet1/0/3] port link-type trunk [Sysname-Ethernet1/0/3] port trunk permit vlan 1000 2000 # Set the QinQ TPID value of Ethernet1/0/3 to 0x8200.
  • Page 9: Chapter 2 Bpdu Tunnel Configuration

    Operation Manual - QinQ-BPDU Tunnel Quidway S3500-EA Series Ethernet Switches Chapter 2 BPDU Tunnel Configuration Chapter 2 BPDU Tunnel Configuration 2.1 Introduction to BPDU Tunnel 2.1.1 Problems in QinQ-Enabled Network In a QinQ implementation, as the service provider network is transparent to customer networks, any redundant links between the two bring about loops.
  • Page 10 Operation Manual - QinQ-BPDU Tunnel Quidway S3500-EA Series Ethernet Switches Chapter 2 BPDU Tunnel Configuration As shown in Figure 2-1, the upper part is the service provider network, and the lower part represents customer networks. The service provider network comprises BPDU input/output devices.
  • Page 11: Bpdu Tunnel Configuration

    Operation Manual - QinQ-BPDU Tunnel Quidway S3500-EA Series Ethernet Switches Chapter 2 BPDU Tunnel Configuration Caution: When performing BPDU Tunnel configuration to enable BPDUs from the customer network to be transmitted through the service provider network transparently, you need to make sure that the VLAN tags of the BPDUs are not changed or removed. Otherwise, the BPDUs cannot be transmitted properly.
  • Page 12: Bpdu Tunnel Configuration Example

    Operation Manual - QinQ-BPDU Tunnel Quidway S3500-EA Series Ethernet Switches Chapter 2 BPDU Tunnel Configuration To do... Use the command... Remarks Required configuring this Enable STP BPDU tunnel bpdu-tunnel dot1q command on the port with for the Ethernet port BPDU tunnel enabled, STP BPDU tunnel is enabled for the port.
  • Page 13 Operation Manual - QinQ-BPDU Tunnel Quidway S3500-EA Series Ethernet Switches Chapter 2 BPDU Tunnel Configuration II. Network diagram Customer1 Customer1 Customer 2 Customer 2 Ethernet 1 /0 /2 Ethernet 1 /0 /2 Gigabit Gigabit Gigabit Gigabit Ethernet 1 /0 /4...
  • Page 14 Operation Manual - QinQ-BPDU Tunnel Quidway S3500-EA Series Ethernet Switches Chapter 2 BPDU Tunnel Configuration [Sysname-Ethernet1/0/3] bpdu-tunnel dot1q enable [Sysname-Ethernet1/0/3] bpdu-tunnel dot1q stp [Sysname-Ethernet1/0/3] quit # Enable BPDU tunnel for STP packets on Ethernet1/0/5. [Sysname] interface Ethernet 1/0/5 [Sysname-Ethernet1/0/5] port access vlan 2...

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