Quidway S5700 Series Ethernet Switches V100R006C01. Configuration Guide - Ethernet. Issue 02 Date HUAWEI TECHNOLOGIES CO., LTD.

Transcription

1 V100R006C01 Issue 02 Date HUAWEI TECHNOLOGIES CO., LTD.

2 2011. All rights reserved. No part of this document may be reproduced or transmitted in any form or by any means without prior written consent of Huawei Technologies Co., Ltd. Trademarks and Permissions and other Huawei trademarks are trademarks of Huawei Technologies Co., Ltd. All other trademarks and trade names mentioned in this document are the property of their respective holders. Notice The purchased products, services and features are stipulated by the contract made between Huawei and the customer. All or part of the products, services and features described in this document may not be within the purchase scope or the usage scope. Unless otherwise specified in the contract, all statements, information, and recommendations in this document are provided "AS IS" without warranties, guarantees or representations of any kind, either express or implied. The information in this document is subject to change without notice. Every effort has been made in the preparation of this document to ensure accuracy of the contents, but all statements, information, and recommendations in this document do not constitute the warranty of any kind, express or implied. Huawei Technologies Co., Ltd. Address: Website: Huawei Industrial Base Bantian, Longgang Shenzhen People's Republic of China i

3 About This Document About This Document Intended Audience This document provides the basic concepts, configuration procedures, and configuration examples in different application scenarios of the Ethernet features supported by the S5700 switch. This document is intended for: Data configuration engineers Commissioning engineers Network monitoring engineers System maintenance engineers Symbol Conventions The symbols that may be found in this document are defined as follows. Symbol Description DANGER WARNING CAUTION Indicates a hazard with a high level of risk, which if not avoided, will result in death or serious injury. Indicates a hazard with a medium or low level of risk, which if not avoided, could result in minor or moderate injury. Indicates a potentially hazardous situation, which if not avoided, could result in equipment damage, data loss, performance degradation, or unexpected results. TIP NOTE Indicates a tip that may help you solve a problem or save time. Provides additional information to emphasize or supplement important points of the main text. ii

4 About This Document Command Conventions The command conventions that may be found in this document are defined as follows. Convention Boldface Italic Description The keywords of a command line are in boldface. Command arguments are in italics. [ ] Items (keywords or arguments) in brackets [ ] are optional. { x y... } Optional items are grouped in braces and separated by vertical bars. One item is selected. [ x y... ] Optional items are grouped in brackets and separated by vertical bars. One item is selected or no item is selected. { x y... } * Optional items are grouped in braces and separated by vertical bars. A minimum of one item or a maximum of all items can be selected. [ x y... ] * Optional items are grouped in brackets and separated by vertical bars. Several items or no item can be selected. &<1-n> The parameter before the & sign can be repeated 1 to n times. A line starting with the sign is comments. Change History Updates between document issues are cumulative. Therefore, the latest document issue contains all updates made in previous issues. Changes in The second commercial release has the following updates: Some contents are modified according to updates in the product such as features and commands. Changes in Issue 01 ( ) Initial commercial release. iii

5 Contents Contents About This Document...ii 1 Ethernet Interface Configuration Introduction to Ethernet Interfaces Ethernet Interface Features Supported by the S Configuring Basic Attributes of an Ethernet Interface Establishing the Configuration Task (Optional) Configuring an Interface Description (Optional) Configuring the Cable Type on an Interface (Optional) Setting the Duplex Mode (Optional) Setting the Interface Rate (Optional) Enabling Auto-Negotiation (Optional) Switching Between Optical and Electrical Interfaces (Optional) Configuring an Interface to Work at Layer 2 or Layer Checking the Configuration Configuring Advanced Attributes of an Ethernet Interface Establishing the Configuration Task (Optional) Configuring the Loopback Function (Optional) Configuring a Port Group (Optional) Setting the Maximum Frame Length (Optional) Enabling Flow Control (Optional) Enabling Auto-Negotiation of Flow Control (Optional) Enabling Port Isolation (Optional) Performing a Cable Test (Optional) Configuring a Loopback Test on an Interface Checking the Configuration Maintaining Ethernet Interfaces Debugging Ethernet Interfaces Configuration Examples Example for Configuring Port Isolation Link Aggregation Configuration Introduction to Link Aggregation Link Aggregation Supported by the S iv

6 Contents 2.3 Configuring Link Aggregation in Manual Load Balancing Mode Establishing the Configuration Task Configuring an Eth-Trunk Interface to Work in Manual Load Balancing Mode Adding Member Interfaces to an Eth-Trunk Interface (Optional) Configuring the Load Balancing Mode (Optional) Limiting the Number of Active Interfaces (Optional) Configuring the Load Balancing Mode for Unknown Unicast Traffic Checking the Configuration Configuring Link Aggregation in Static LACP Mode Establishing the Configuration Task Configuring an Eth-Trunk Interface to Work in Static LACP Mode Adding Member Interfaces to an Eth-Trunk Interface (Optional) Configuring the Load Balancing Mode (Optional) Limiting the Number of Active Interfaces (Optional) Setting the System LACP Priority (Optional) Setting the LACP Priority for an Interface (Optional) Enabling LACP Preemption and Setting the Preemption Delay (Optional) Setting the Timeout Interval for Receiving LACP Packets (Optional) Configuring the Load Balancing Mode for Unknown Unicast Traffic Checking the Configuration Configuring an E-Trunk Establishing the Configuration Task Setting the LACP System ID and LACP Priority of an E-Trunk Creating an E-Trunk and Setting the E-Trunk Priority Configuring Local and Peer IP Addresses of an E-Trunk Binding an E-Trunk to a BFD Session Adding an Eth-Trunk Interface to an E-Trunk (Optional) Configuring the Working Mode of an Eth-Trunk Interface in an E-Trunk (Optional) Setting the Password for Encrypting Packets (Optional) Setting the Timeout Interval of Hello Packets (Optional) Setting the Revertive Switching Delay Checking the Configuration Maintaining Link Aggregation Clearing LACP Packet Statistics Debugging a Link Aggregation Group Monitoring the Operating Status of a Link Aggregation Group Configuration Examples Example for Configuring Link Aggregation in Manual Load Balancing Mode Example for Configuring Link Aggregation in Static LACP Mode VLAN Configuration Introduction VLAN Features Supported by the S v

7 Contents 3.3 Dividing a LAN into VLANs Establishing the Configuration Task Dividing a LAN into VLANs Based on Ports Dividing a LAN into VLANs Based on MAC Addresses Dividing a LAN into VLANs Based on IP Subnets Dividing a LAN into VLANs Based on Protocols Dividing a LAN into VLANs Based on Policies Checking the Configuration Creating a VLANIF Interface Establishing the Configuration Task Creating a VLANIF Interface Assigning an IP Address to a VLANIF Interface (Optional) Setting a Delay After Which a VLANIF Interface Goes Down (Optional) Setting the MTU of a VLANIF Interface Checking the Configuration Configuring Inter-VLAN Communication Establishing the Configuration Task Configuring VLANIF Interfaces for Inter-VLAN Communication Checking the Configuration Configuring VLAN Aggregation to Save IP Addresses Establishing the Configuration Task Creating a Sub-VLAN Creating a Super-VLAN Assigning an IP Address to the VLANIF Interface of a Super-VLAN (Optional) Enabling Proxy ARP on the VLANIF Interface of a Super-VLAN Checking the Configuration Configuring a MUX VLAN to Separate Layer 2 Traffic Establishing the Configuration Task Configuring a Principal VLAN for a MUX VLAN Configuring a Group VLAN for a Subordinate VLAN Configuring a Separate VLAN for a Subordinate VLAN Enabling the MUX VLAN Function on a Port Checking the Configuration Configuring a Voice VLAN to Transmit Voice Data Establishing the Configuration Task Enabling the Voice VLAN Function Configuring an OUI for a Voice VLAN (Optional) Setting an Aging Timer for a Voice VLAN (Optional) Configuring an 802.1p Priority and a DSCP Value for the Voice VLAN (Optional) Configuring the Mode in Which Ports Are Added to a Voice VLAN (Optional) Configuring the Working Mode for a Voice VLAN (Optional) Configuring a Port to Communicate with a Voice Device of Another Vendor...96 vi

8 Contents Checking the Configuration Configuring an mvlan to Implement Integrated Management Establishing the Configuration Task Configuring an mvlan Configuring a VLANIF Interface for an mvlan Checking the Configuration Maintaining VLAN Clearing the Statistics of VLAN Packets Configuration Examples Example for Assigning VLANs Based on Ports Example for Assigning VLANs based on MAC Addresses Example for Assigning VLANs Based on IP Subnets Example for Assigning VLANs Based on Protocols Example for Implementing Inter-VLAN Communication Using VLANIF Interfaces Example for Configuring VLAN Aggregation Example for Configuring MUX VLAN Example for Configuring a Voice VLAN in Auto Mode Example for Configuring a Voice VLAN in Manual Mode VLAN Mapping Configuration Introduction to VLAN Mapping VLAN Mapping Features Supported by the S Configuring VLAN Mapping for Single-tagged Packets Establishing the Configuration Task Replacing a Single Tag Checking the Configuration Configuring VLAN Mapping for Double-tagged Packets Establishing the Configuration Task Replacing the Outer VLAN Tag Checking the Configuration Configuration Examples Example for Configuring Single-Tag VLAN Mapping Example for Configuring N:1 VLAN Mapping QinQ Configuration QinQ Overview QinQ Features Supported by the S Configuring QinQ on an Interface Establishing the Configuration Task Setting the Link Type of an Interface Specifying the Outer VLAN ID Checking the Configuration Configuring Selective QinQ Establishing the Configuration Task vii

9 Contents Setting the Link Type of an Interface Adding the Interface to the Stacked VLAN Configuring Selective QinQ Checking the Configuration Configuring QinQ Stacking on a VLANIF Interface Establishing the Configuration Task Configuring QinQ Stacking on a VLANIF Interface Checking the Configuration Setting the Protocol Type in the Outer VLAN Tag Establishing the Configuration Task Configuring the Link Type of an Interface Setting the Protocol Type in the Outer VLAN Tag Checking the Configuration Configuration Examples Example for Configuring QinQ on Interfaces Example for Configuring Selective QinQ Example for Configuring Selective QinQ with VLAN Mapping Example for Configuring QinQ Stacking on a VLANIF Interface GVRP Configuration GVRP Overview GVRP Features Supported by the S Configuring GVRP Establishing the Configuration Task Enabling GVRP (Optional) Setting the Registration Mode for a GVRP Interface (Optional) Setting the GARP Timers Checking the Configuration Maintaining GVRP Clearing GARP Statistics Configuration Examples Example for Configuring GVRP MAC Address Table Configuration MAC Address Table Overview MAC Address Features Supported by the S Configuring a Static MAC Address Entry Configuring a Blackhole MAC Address Entry Setting the Aging Time of Dynamic MAC Address Entries Disabling MAC Address Learning Establishing the Configuration Task Disabling MAC Address Learning on an Interface Disabling MAC Address Learning in a VLAN Checking the Configuration viii

10 Contents 7.7 Limiting the Number of Learned MAC Addresses Establishing the Configuration Task Limiting the Number of MAC Addresses Learned on an Interface Limiting the Number of MAC Addresses Learned in a VLAN Checking the Configuration Configuring Port Security Establishing the Configuration Task Configuring the Secure Dynamic MAC Function on an Interface Configuring the Sticky MAC Function on an Interface Checking the Configuration Configuring MAC Address Anti-Flapping Establishing the Configuration Task Setting the MAC Address Learning Priority for an Interface Prohibiting MAC Address Flapping Between Interfaces with the Same Priority Checking the Configuration Configuring MAC Address Flapping Detection Establishing the Configuration Task Configuring MAC Address Flapping Detection (Optional) Unblocking a Blocked Interface or MAC Address Checking the Configuration Enabling MAC Spoofing Defense Configuring the Switch to Discard Packets with an All-Zero MAC Address Enabling MAC Address-triggered ARP Entry Update Enabling Port Bridge Configuration Examples Example for Configuring the MAC Address Table Example for Configuring MAC Address Limiting in a VLAN Example for Configuring Port Security Example for Configuring MAC Address Anti-Flapping STP/RSTP Configuration STP/RSTP Overview STP/RSTP Overview STP/RSTP Features Supported by the S Configuring Basic STP/RSTP Functions Establishing the Configuration Task Configuring the STP/RSTP Mode (Optional) Configuring Switching Device Priorities (Optional) Setting the Path Cost for a Port (Optional) Configuring Port Priorities Enabling STP/RSTP Checking the Configuration Configuring STP/RSTP Parameters on an Interface ix

11 Contents Establishing the Configuration Task Setting System Parameters Setting Port Parameters Checking the Configuration Configuring RSTP Protection Functions Establishing the Configuration Task Configuring BPDU Protection on a Switching Device Configuring TC Protection on a Switching Device Configuring Root Protection on a Port Configuring Loop Protection on a Port Checking the Configuration Configuring STP/RSTP Interoperability Between Huawei Devices and Non-Huawei Devices Establishing the Configuration Task Configuring the Proposal/Agreement Mechanism Checking the Configuration Maintaining STP/RSTP Clearing STP/RSTP Statistics Configuration Examples Example for Configuring Basic STP Functions Example for Configuring Basic RSTP Functions MSTP Configuration MSTP Overview MSTP Introduction MSTP Features Supported by the S Configuring Basic MSTP Functions Establishing the Configuration Task Configuring the MSTP Mode Configuring and Activating an MST Region (Optional) Setting a Priority for a Switching Device in an MSTI (Optional) Setting a Path Cost of a Port in an MSTI (Optional) Setting a Port Priority in an MSTI Enabling MSTP Checking the Configuration Configuring MSTP Multi-process Establishing the Configuration Task Creating an MSTP Process Adding an Interface to an MSTP Process - Access Links Adding an Interface to an MSTP Process - Share Link Configuring Priorities and Root Protection in MSTP Multi-process Configuring TC Notification in MSTP Multi-process Checking the Configuration Configuring MSTP Parameters on an Interface x

12 Contents Establishing the Configuration Task Configuring System Parameters Configuring Port Parameters Checking the Configuration Configuring MSTP Protection Functions Establishing the Configuration Task Configuring BPDU Protection on a Switching Device Configuring TC Protection on a Switching Device Configuring Root Protection on an Interface Configuring Loop Protection on an Interface Configuring Share-Link Protection on a Switching Device Checking the Configuration Configuring MSTP Interoperability Between Huawei Devices and Non-Huawei Devices Establishing the Configuration Task Configuring a Proposal/Agreement Mechanism Configuring the MSTP Protocol Packet Format on an Interface Enabling the Digest Snooping Function Checking the Configuration Maintaining MSTP Clearing MSTP Statistics Configuration Examples Example for Configuring Basic MSTP Functions Example for Configuring MSTP Multi-Process for Layer 2 Single-Access Rings and Layer 2 Multi-Access Rings SEP Configuration SEP Overview SEP Overview SEP Features Supported by the S Configuring Basic SEP Functions Establishing the Configuration Task Configuring an SEP Segment Configuring a Control VLAN Creating a Protected Instance Adding a Layer 2 Interface to a SEP Segment and Configuring a Role for the Interface Checking the Configuration Specifying an Interface to Block Establishing the Configuration Task Setting an Interface Blocking Mode Configuring the Preemption Mode Checking the Configuration Configuring SEP Multi-Instance Establishing the Configuration Task xi

13 Contents Configuring and Activating Mappings Between Protected Instances and VLANs Checking the Configuration Configuring the Topology Change Notification Function Establishing the Configuration Task Reporting Topology Changes of a Lower-Layer Network - SEP Topology Change Notification Reporting Topology Changes of a Lower-Layer Network - Enabling the Edge Devices in a SEP Segment to Process SmartLink Flush Packets Reporting Topology Changes of an Upper-Layer Network - Configuring Association Between SEP and CFM Checking the Configuration Maintaining SEP Clearing SEP Statistics Debugging SEP Configuration Examples Example for Configuring SEP on a Closed Ring Network Example for Configuring SEP on a Multi-ring Network Example for Configuring SEP on a Hybrid-ring Network Example for Configuring a Hybrid SEP+RRPP Ring Network (Reporting the Topology Changes of a Lower-Layer Network) Example for Configuring SEP Multi-Instance on a Closed Ring Network Layer 2 Protocol Transparent Transmission Configuration Layer 2 Protocol Transparent Transmission Overview Layer 2 Protocol Transparent Transmission Features Supported by the S Configuring Interface-based Layer 2 Protocol Transparent Transmission Establishing the Configuration Task (Optional) Defining Characteristics of a Layer 2 Protocol Configuring the Transparent Transmission Mode of Layer 2 Protocol Packets Enabling Layer 2 Protocol Transparent Transmission on an Interface Checking Configuration Configuring VLAN-based Layer 2 Protocol Transparent Transmission Establishing the Configuration Task (Optional) Defining Characteristics of a Layer 2 Protocol Configuring the Transparent Transmission Mode of Layer 2 Protocol Packets Enabling VLAN-based Layer 2 Protocol Transparent Transmission on an Interface Checking the Configuration Configuring QinQ-based Layer 2 Protocol Transparent Transmission Establishing the Configuration Task (Optional) Defining Characteristics of a Layer 2 Protocol Configuring the Transparent Transmission Mode of Layer 2 Protocol Packets Enabling QinQ-based Layer 2 Transparent Transmission on an Interface Checking the Configuration Maintaining Layer 2 Protocol Transparent Transmission xii

14 Contents Debugging Layer 2 Protocol Transparent Transmission Configuration Examples Example for Configuring Interface-based Layer 2 Protocol Transparent Transmission Example for Configuring VLAN-based Layer 2 Protocol Transparent Transmission Example for Configuring QinQ-based Layer 2 Protocol Transparent Transmission Loopback Detection Configuration Loopback Detection Overview Configuring Loopback Detection Establishing the Configuration Task Enabling Loopback Detection Specifying VLAN IDs of Loopback Detection Packets (Optional) Configuring an Action to Perform After a Loopback Is Detected (Optional) Setting the Interface Recovery Time After a Loop Is Removed (Optional) Setting the Interval for Sending Loopback Detection Packets on an Interface Checking the Configuration Configuration Examples Example for Configuring Loopback Detection xiii

15 1 Ethernet Interface Configuration 1 Ethernet Interface Configuration About This Chapter This chapter describes the basic knowledge, methods, and examples for configuring the Ethernet interface. 1.1 Introduction to Ethernet Interfaces This section describes the types and attributes of Ethernet interfaces. 1.2 Ethernet Interface Features Supported by the S5700 The S5700 supports the following features that you can configure for Ethernet interfaces: port grouping, auto-negotiation, and port isolation. 1.3 Configuring Basic Attributes of an Ethernet Interface This section describes how to configure the description, cable type, duplex mode, rate, and autonegotiation for an Ethernet interface. The section also explains how to change the interface type (optical or electrical) of combo interfaces and configure an interface to work at Layer 2 or Layer Configuring Advanced Attributes of an Ethernet Interface This section describes how to configure the advanced attributes of an Ethernet interface, including loopback test, port group, maximum frame size, flow control, flow control autonegotiation, cable test, loopback test, and port isolation. 1.5 Maintaining Ethernet Interfaces This section describes how to maintain Ethernet interfaces. 1.6 Configuration Examples This section provides a configuration example of port isolation. 1

16 1 Ethernet Interface Configuration 1.1 Introduction to Ethernet Interfaces This section describes the types and attributes of Ethernet interfaces. Ethernet is an important local area network (LAN) networking technology because it is flexible, simple, and easy to implement. Ethernet interfaces are classified into Ethernet electrical interfaces and optical interfaces. Table 1-1 shows the attributes of Ethernet electrical interfaces and optical interfaces. Table 1-1 Attributes of Ethernet interfaces Interface Type Rate (Mbit/ s) Auto-negotiation Full Duplex Half Duplex Non-negotiation Full Duplex Half Duplex Electrical 10 Yes Yes Yes Yes 100 Yes Yes Yes Yes 1000 Yes No Yes No Optical 100 No No Yes No 1000 Yes No Yes No No No Yes No If the local interface works in auto-negotiation mode, the peer interface must also work in autonegotiation mode; otherwise, packet loss occurs. 1.2 Ethernet Interface Features Supported by the S5700 Port Group Auto-Negotiation The S5700 supports the following features that you can configure for Ethernet interfaces: port grouping, auto-negotiation, and port isolation. A port group allows you to configure multiple interfaces at the same time. After you run a command in the port group view, the configuration applies to all the interfaces in the group. The auto-negotiation function allows interfaces on both ends of a link to select the same operating parameters. Each interface sends its capability information to the remote end and checks the capabilities of the remote end. After both interfaces receive capability information from each other, they adopt the highest capability they both support to communicate with each other. The interfaces negotiate the duplex mode, speed, and flow control parameters. After a successful negotiation, the interfaces use the same duplex mode, speed, and flow control parameters. 2

17 1 Ethernet Interface Configuration Port Isolation The port isolation function isolates Layer 2 and Layer 3 communication between ports in the same VLAN. This function restricts packet transmission between ports flexibly, to provide a secure and flexible network solution. 1.3 Configuring Basic Attributes of an Ethernet Interface This section describes how to configure the description, cable type, duplex mode, rate, and autonegotiation for an Ethernet interface. The section also explains how to change the interface type (optical or electrical) of combo interfaces and configure an interface to work at Layer 2 or Layer Establishing the Configuration Task Applicable Environment Pre-configuration Tasks The task to configure basic attributes includes setting the following parameters: Interface description. You can configure interface descriptions to facilitate interface identification, maintenance, and configuration. Cable type. By default, a fast Ethernet (FE) electrical interface automatically identifies the network cable type. If the interface cannot identify the cable type, set the cable type for the interface. Duplex mode. By default, an FE electrical interface negotiates the duplex mode and rate with the equipment that is directly connected to the interface. If the connected device does not have auto-negotiation capability, set the duplex mode and rate for the FE interface so that the interface can communicate with the connected device. None. Data Preparation To configure the basic attributes of an Ethernet interface, you need the following data. No. Data 1 Number of the Ethernet interface 2 (Optional) Description of the interface 3 (Optional) Cable type of the Ethernet electrical interface 4 (Optional) Duplex mode of the Ethernet electrical interface 5 (Optional) Rate of the Ethernet interface 3

18 1 Ethernet Interface Configuration (Optional) Configuring an Interface Description Context Perform the following steps on the switch to configure the description of an interface. Step 1 system-view The system view is displayed. Step 2 interface interface-type interface-number The interface view is displayed. Step 3 description description A description is configured for the interface. By default, an interface description is "HUAWEI, Quidway Series, X interface", where X specifies the interface type and number (Optional) Configuring the Cable Type on an Interface Context Perform the following steps on the switch to configure the cable type on an interface. Step 1 system-view The system view is displayed. Step 2 interface interface-type interface-number The Ethernet electrical interface view is displayed. Step 3 mdi { across auto normal } The cable type is configured for the Ethernet electrical interface. By default, an Ethernet electrical interface automatically identifies the cable type. Use this command when the actual cable type does not match the cable type supported by the interface. An electrical interface can use a crossover cable or a straight-through cable. If across is specified, the interface can only use a crossover cable. If normal is specified, the interface can only use a 4

19 1 Ethernet Interface Configuration straight-through cable. If auto is specified, the interface can use either a straight-through cable or a crossover cable (Optional) Setting the Duplex Mode Context Perform the following steps on the switch to set the duplex mode for an Ethernet interface. Step 1 system-view The system view is displayed. Step 2 interface interface-type interface-number The Ethernet electrical interface view is displayed. Step 3 undo negotiation auto Auto-negotiation is disabled on the Ethernet electrical interface. Step 4 duplex { full half } The duplex mode is set for the Ethernet electrical interface. By default, an Ethernet electrical interface works in full-duplex mode when auto-negotiation is disabled on the interface (Optional) Setting the Interface Rate Context Perform the following steps on the switch to set the interface rate. Step 1 system-view The system view is displayed. Step 2 interface interface-type interface-number The interface view is displayed. 5

20 1 Ethernet Interface Configuration Step 3 undo negotiation auto Auto-negotiation is disabled on the interface. Step 4 speed { } The interface rate is set. By default, an Ethernet interface works at its maximum rate when auto-negotiation is disabled on the interface (Optional) Enabling Auto-Negotiation Context Perform the following steps on the switch to enable auto-negotiation on an Ethernet interface. The local interface and remote interface must work in the same mode, that is, both or neither work in auto-negotiation mode. NOTE 10G optical interfaces do not support auto-negotiation. The negotiation auto command cannot enable rate negotiation for 1000M optical interfaces. On the S5700HI, you can use the speed auto-negotiation command to enable rate negotiation for 1000M optical interfaces. When the S5700SI switch connects to another device through a GE optical interface on the Interface Subcards, configure the GE optical interface to work in non-auto negotiation mode. Step 1 system-view The system view is displayed. Step 2 interface interface-type interface-number The interface view is displayed. Step 3 negotiation auto Auto-negotiation is enabled on the interface. By default, an interface works in auto-negotiation mode (Optional) Switching Between Optical and Electrical Interfaces 6

21 1 Ethernet Interface Configuration Context Perform the following steps on the switch to change the combo interface type. Step 1 system-view The system view is displayed. Step 2 interface gigabitethernet interface-number The GigabitEthernet interface view is displayed. Step 3 combo-port { auto copper fiber } The interface is changed to an optical interface or an electrical interface. By default, a combo interface automatically selects the working mode according to the transmission media (Optional) Configuring an Interface to Work at Layer 2 or Layer 3 Context NOTE Only the S5700HI supports the portswitch command. Step 1 system-view The system view is displayed. Step 2 interface interface-type interface-number The interface view is displayed. Step 3 portswitch The interface is configured to work at Layer 2. Step 4 undo portswitch The interface is configured to work at Layer 3. By default, an Ethernet interface works at Layer 2. 7

22 1 Ethernet Interface Configuration When you change an Ethernet interface from Layer 3 to Layer 2, the Layer 3 functions and identifier are disabled on the interface, and the interface uses the MAC address of the system Checking the Configuration Step 1 Run the display interface [ interface-type [ interface-number ] ] command to check the description, duplex mode, and rate of an Ethernet interface. 1.4 Configuring Advanced Attributes of an Ethernet Interface This section describes how to configure the advanced attributes of an Ethernet interface, including loopback test, port group, maximum frame size, flow control, flow control autonegotiation, cable test, loopback test, and port isolation Establishing the Configuration Task Applicable Environment Pre-configuration Tasks Advanced attributes of an Ethernet interface include: Port group. The S5700 provides the interface group function, which enables you to configure multiple interfaces at the same time. Flow control. If the rate of traffic received on an interface is likely to exceed the interface processing capability, and the directly connected interface supports flow control, enable flow control on the local interface. When the rate of received traffic reaches the threshold, the interface sends a Pause frame (in full duplex mode) or a back pressure signal (in half duplex mode) to notify the remote interface. If the remote interface supports flow control, it sends traffic at a lower rate so that the local interface can process received traffic. Port isolation. The port isolation function prevents interfaces in the same VLAN from communicating with each other. Interfaces with port isolation enabled cannot communicate with each other. This function provides secure and flexible networking solutions for customers. None. Data Preparation To configure the advanced functions of an Ethernet interface, you need the following data. 8

23 1 Ethernet Interface Configuration No. Data 1 Interface number 2 (Optional) Maximum frame length allowed on the interface (Optional) Configuring the Loopback Function Context Perform the following steps on the switch to configure the loopback function on an Ethernet interface. Step 1 system-view The system view is displayed. Step 2 interface interface-type interface-number The interface view is displayed. Step 3 loopback internal The loopback function is configured on the Ethernet interface. By default, the loopback function is disabled on an Ethernet interface (Optional) Configuring a Port Group Context Perform the following steps on the switch to configure a port group. Step 1 system-view The system view is displayed. Step 2 port-group port-group-name The port group view is displayed. 9

24 1 Ethernet Interface Configuration Step 3 group-member interface-type interface-number An Ethernet interface is added to the port group (Optional) Setting the Maximum Frame Length Context Perform the following steps on the switch to set the maximum frame length on an Ethernet interface. Step 1 system-view The system view is displayed. Step 2 interface interface-type interface-number The Ethernet interface view is displayed. Step 3 jumboframe enable [ value ] The maximum frame length is set on the Ethernet interface. By default, the maximum frame length allowed by interfaces of the S5700EI and S5700SI is 1600 bytes. The maximum frame length allowed by interfaces of the S5700HI and S5706 is 9216 bytes (Optional) Enabling Flow Control Context To implement flow control, you must enable this function on both the local interface and peer interface. Perform the following steps on the switch to enable flow control. Step 1 system-view The system view is displayed. Step 2 interface interface-type interface-number The interface view is displayed. 10

25 1 Ethernet Interface Configuration Step 3 flow-control Flow control is enabled on the interface. By default, flow control is disabled on an Ethernet interface (Optional) Enabling Auto-Negotiation of Flow Control Context Perform the following steps on the switch to configure auto-negotiation of flow control. GE interfaces support auto-negotiation of flow control, but FE interfaces do not. Step 1 system-view The system view is displayed. Step 2 interface gigabitethernet interface-number The GE interface view is displayed. Step 3 flow-control negotiation Auto-negotiation of flow control is enabled on the GE interface. By default, auto-negotiation of flow control is disabled on a GE interface. You must also configure auto-negotiation of flow control on the peer interface (Optional) Enabling Port Isolation Context Perform the following steps on the switch to enable port isolation. Step 1 system-view The system view is displayed. Step 2 port-isolate mode { l2 all } The port isolation mode is set. 11

26 1 Ethernet Interface Configuration By default, ports are isolated on Layer 2 but can communicate on Layer 3. Step 3 interface interface-type interface-number The Ethernet interface view is displayed. Step 4 (Optional) am isolate interface-type interface-number [ to interface-number ] The Ethernet interface is unidirectionally isolated from the specified interface. NOTE After interface A is unidirectionally isolated from interface B, packets sent by interface A cannot reach interface B, whereas packets sent from interface B can reach interface A. Step 5 port-isolate enable [ group group-id ] Port isolation is enabled. NOTE Interfaces in a port isolation group are isolated from each other, and interfaces in different port isolation groups can communicate with each other. If group-id is not specified, an interface is added to port isolation group (Optional) Performing a Cable Test Context A cable test detects faults on the cable connected to an interface. If the cable is working properly, the test result displays the total length of the cable. If the cable cannot work properly, he test result displays the distance between the interface and the failure point. NOTE Before performing a cable test, shut down the remote interface or remove the network cable from the remote interface. Otherwise, signals from the remote interface may make the test result inaccurate. Running the virtual-cable-test command affect services on the interface in a short period of time. Step 1 system-view The system view is displayed. Step 2 interface interface-type interface-number The interface view is displayed. Step 3 virtual-cable-test A cable test is performed on the interface. 12

27 1 Ethernet Interface Configuration NOTE The test result is for reference only (Optional) Configuring a Loopback Test on an Interface Context Perform the following steps on the S5700 where a loopback test needs to be performed. Step 1 system-view The system view is displayed. Step 2 interface interface-type interface-number The interface view is displayed. Step 3 loopbacktest internal A loopback test is configured on the interface. By default, no loopback test is configured on an interface Checking the Configuration Run the display port-group [ all port-group-name ] command to check information about a port group. Run the display interface [ interface-type [ interface-number ] ] command to check autonegotiation capability on an Ethernet interface. Run the display virtual-cable-test interface-type interface-number command to check the cable test result on an Ethernet interface. 1.5 Maintaining Ethernet Interfaces This section describes how to maintain Ethernet interfaces Debugging Ethernet Interfaces 13

28 GE0/0/2 Quidway S5700 Series Ethernet Switches 1 Ethernet Interface Configuration Context CAUTION Debugging affects the performance of the system. Therefore, run the undo debugging all command to disable debugging immediately after the debugging is complete. When an Ethernet interface or Eth-Trunk fault occurs, run the following debugging command in the user view to locate the fault. Step 1 Run the debugging l2if [ error event msg updown ] command to enable the debugging of link layer features. 1.6 Configuration Examples This section provides a configuration example of port isolation Example for Configuring Port Isolation Networking Requirements As shown in Figure 1-1, it is required that PC1 and PC2 cannot communicate with each other, but they can communicate with PC3. Figure 1-1 Networking diagram for port isolation configuration Switch GE0/0/1 GE0/0/3 PC1 PC2 PC / / /24 Configuration Roadmap The configuration roadmap is as follows: 14

29 1 Ethernet Interface Configuration Data Preparation 1. Enable port isolation on the ports connected to PC1 and PC2 respectively to prevent PC1 and PC2 from communicating with each other. To complete the configuration, you need the following data: Number of the port connected to PC1 Number of the port connected to PC2 Port isolation mode: Layer 2 isolation and Layer 3 communication (default configuration) ID of the VLAN to which the ports connected to PC1, PC2, and PC3 belong (VLAN 1 by default) Port isolation group to which the ports connected to PC1 and PC2 belong (group 1 by default) Step 1 Enable port isolation. Isolate ports on Layer 2 and allow them to communicate on Layer 3. <Quidway> system-view [Quidway] port-isolate mode l2 Enable port isolation on GigabitEthernet 0/0/1. <Quidway> system-view [Quidway] interface gigabitethernet 0/0/1 [Quidway-GigabitEthernet0/0/1] port-isolate enable [Quidway-GigabitEthernet0/0/1] quit Enable port isolation on GigabitEthernet 0/0/2. <Quidway> system-view [Quidway] interface gigabitethernet 0/0/2 [Quidway-GigabitEthernet0/0/2] port-isolate enable [Quidway-GigabitEthernet0/0/2] quit Step 2 Verify the configuration. PC1 and PC2 cannot ping each other. PC1 and PC3 can ping each other. PC2 and PC3 can ping each other. Configuration Files Configuration file of the Switch sysname Quidway interface GigabitEthernet0/0/1 port-isolate enable group 1 interface GigabitEthernet0/0/2 port-isolate enable group 1 15

30 1 Ethernet Interface Configuration interface GigabitEthernet0/0/3 return 16

31 2 Link Aggregation Configuration 2 Link Aggregation Configuration About This Chapter This chapter describes the concepts, configuration procedures, and configuration examples of link aggregation. 2.1 Introduction to Link Aggregation This section describes the definition and function of link aggregation. 2.2 Link Aggregation Supported by the S5700 This S5700 supports link aggregation in manual load balancing mode and static Link Aggregation Control Protocol (LACP) mode. 2.3 Configuring Link Aggregation in Manual Load Balancing Mode This section describes how to configure link aggregation in manual load balancing mode. 2.4 Configuring Link Aggregation in Static LACP Mode This section describes how to configure link aggregation in static LACP mode. 2.5 Configuring an E-Trunk As an extension to the Link Aggregation Protocol (LACP) that implements link aggregation on a single device, the Enhanced Trunk (E-Trunk) protocol implements link aggregation between devices to improve link reliability between devices. 2.6 Maintaining Link Aggregation This section describes how to clear the statistics of received and sent LACP packets, debug the link aggregation group, and monitor the running status of the link aggregation group. 2.7 Configuration Examples This section provides several configuration examples of link aggregation in manual load balancing mode and static LACP mode. 17

32 2 Link Aggregation Configuration 2.1 Introduction to Link Aggregation This section describes the definition and function of link aggregation. Link aggregation is a method of bundling a group of physical interfaces into a logical interface to increase link bandwidth. It is also called load sharing group or link aggregation group. For details, refer to IEEE802.3ad. By setting up a link aggregation group between two devices, you can obtain higher bandwidth and reliability. Link aggregation provides redundancy protection without the need for upgrading the hardware. 2.2 Link Aggregation Supported by the S5700 This S5700 supports link aggregation in manual load balancing mode and static Link Aggregation Control Protocol (LACP) mode. Manual Load Balancing Mode Static LACP Mode In load balancing mode, you can add member interfaces to the link aggregation group. All the interfaces in the link aggregation group are in forwarding state. The S5700 can perform load balancing based on destination MAC addresses, source MAC addresses, source MAC address Exclusive-Or destination MAC address, source IP addresses, destination IP addresses, source address Exclusive-Or destination IP address. In manual load balancing mode, you must create an Eth-Trunk interface and add member interfaces to the Eth-Trunk. The Link Aggregation Control Protocol (LACP) is not used in this mode. The manual load balancing mode is usually used when the peer device does not support LACP. In static LACP mode, two devices exchange LACP packets to negotiate aggregation parameters and determine the active interfaces and inactive interfaces. In this mode, you must create an Eth- Trunk interface and add member interfaces to the Eth-Trunk interface. The active interfaces and inactive interfaces are determined by LACP negotiation. The static LACP mode is also called the M:N mode, where links implement load balancing and redundancy at the same time. In a link aggregation group, M links are active and load balance data traffic. N links are inactive and function as backup links. When an active link fails, the backup link with the highest priority replaces the failed link to forward data and its status changes to active. In static LACP mode, some links function as backup links. In manual load balancing mode, all member interfaces work in forwarding state to share the traffic. This is the main difference between the two modes. Active Interface and Inactive Interface Active interfaces are the interfaces that are responsible for forwarding data. The interfaces that do not forward data are called inactive interfaces. Active and inactive interfaces are classified according to the operation modes, as follows: 18

33 2 Link Aggregation Configuration Actor and Partner Manual load balancing mode: All member interfaces are active interfaces unless a fault occurs. Static LACP mode: The interfaces connected to M links are active interfaces responsible for forwarding data. The interfaces connected to N links are inactive interfaces used for redundancy backup. In static LACP mode, the device in the link aggregation group with a higher LACP priority is the Actor, and the device with a lower LACP priority is the Partner. If the two devices have the same LACP priority, the Actor is selected based on the MAC addresses of the devices. The device with a smaller MAC address becomes the Actor. Differentiating the Actor and the Partner keeps the active interfaces at both ends consistent. If the devices select active interfaces according to the priorities of their own interfaces, the two ends may have different number of the active interfaces and the active links cannot be set up. Therefore, the Actor is determined first. The Partner selects active interfaces according to the interface priorities on the Actor. Figure 2-1 shows the process to select active interfaces. Figure 2-1 Determining active links in static LACP mode SwitchA SwitchB Device with high priority SwitchA Device with low priority The Actor determines the active link SwitchB Active interface selected by SwitchA Active interface selected by SwitchB 2.3 Configuring Link Aggregation in Manual Load Balancing Mode This section describes how to configure link aggregation in manual load balancing mode Establishing the Configuration Task Applicable Environment When you need to increase the bandwidth or reliability of two devices and one of the two devices does not support LACP, create an Eth-Trunk interface in manual load balancing mode on the two devices and add member interfaces to the Eth-Trunk interface. 19

34 2 Link Aggregation Configuration As shown in Figure 2-2, an Eth-Trunk is established between SwitchA and SwitchB. Figure 2-2 Link aggregation in load balancing mode Eth-Trunk 1 Eth-Trunk 1 Eth-Trunk SwitchA SwitchB Pre-configuration Tasks Data Preparation Before configuring link aggregation in manual load balancing mode, complete the following tasks: Powering on the switch Creating an Eth-Trunk interface To configure link aggregation in manual load balancing mode, you need the following data. No. Data 1 Number of the Eth-Trunk interface in manual load balancing mode 2 Types and numbers of the member interfaces Configuring an Eth-Trunk Interface to Work in Manual Load Balancing Mode Context NOTE Before you configure the operation mode of an Eth-Trunk interface, check whether the Eth-Trunk interface contains member interfaces. If the Eth-Trunk contains member interfaces, you cannot change the operation mode of the Eth-Trunk interface. To delete member interfaces from the Eth-Trunk interface, run the undo eth-trunk command in the member interface view or run the undo trunkport interface-type interfacenumber command in the Eth-Trunk interface view. Perform the following steps on the switch to configure an Eth-Trunk interface in manual load balancing mode. Step 1 system-view The system view is displayed. 20