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【技术干货】给华为交换机S5700配置链路聚合

发布作者：微思网络   发布时间：2026-03-06   浏览量：0次

学习目标

· 掌握接口速率的配置方法

· 掌握使用手动模式配置链路聚合的方法

· 掌握使用静态LACP模式配置链路聚合的方法

· 掌握在静态LACP模式下配置接口优先级的方法


拓扑图

图4.1 以太网链路聚合拓扑图

场景

您是公司的网络管理员。现在公司购买了两台华为的S5700系列的交换机，为了提高交换机之间链路带宽以及可靠性，您需要在交换机上配置链路聚合功能。


操作步骤


步骤一 以太网交换机基础配置

华为交换机接口默认开启了自协商功能。

首先修改交换机的设备名称，然后查看SW1上G0/0/9和G0/0/10接口的详细信息。

  • <Huawei>system-view

  • [Huawei]sysname SW1

  • [SW1]


  • [SW1]displayinterface GigabitEthernet 0/0/9

  • GigabitEthernet0/0/9current state : UP

  • Lineprotocol current state : UP

  • Description:

  • SwitchPort, Link-type : trunk(negotiated),

  • PVID : 1, TPID : 8100(Hex), The Maximum Frame Length is 9216

  • IPSending Frames' Format is PKTFMT_ETHNT_2, Hardware address is d0d0-4ba6-aab0

  • Currentsystem time: 2019-11-23 14:18:37

  • PortMode: COMMON COPPER

  • Speed : 1000, Loopback: NONE

  • Duplex: FULL, Negotiation: ENABLE

  • Mdi : AUTO, Flow-control: DISABLE

  • Last300 seconds input rate 256 bits/sec, 0 packets/sec

  • Last300 seconds output rate 912 bits/sec, 0 packets/sec

  • Inputpeak rate 13976 bits/sec, Record time: 2019-11-22 14:59:12

  • Outputpeak rate 13976 bits/sec, Record time: 2019-11-22 14:59:12

  • ……outputomit……


  • [SW1]displayinterface GigabitEthernet 0/0/10

  • GigabitEthernet0/0/10current state : UP

  • Lineprotocol current state : UP

  • Description:

  • SwitchPort, Link-type : trunk(negotiated),

  • PVID : 1, TPID : 8100(Hex), The Maximum Frame Length is 9216

  • IPSending Frames' Format is PKTFMT_ETHNT_2, Hardware address is d0d0-4ba6-aab0

  • Currentsystem time: 2019-11-23 14:22:22

  • PortMode: COMMON COPPER

  • Speed : 1000, Loopback: NONE

  • Duplex: FULL, Negotiation: ENABLE

  • Mdi : AUTO, Flow-control: DISABLE

  • Last300 seconds input rate 72 bits/sec, 0 packets/sec

  • Last300 seconds output rate 1024 bits/sec, 0 packets/sec

  • Inputpeak rate 14032 bits/sec, Record time: 2019-11-22 14:59:12

  • Outputpeak rate 14032 bits/sec, Record time: 2019-11-22 14:59:12

  • ……outputomit……


步骤二 配置手动模式的链路聚合

在SW1和SW2上创建Eth-Trunk 1，然后将G0/0/9和G0/0/10接口加入Eth-Trunk 1（注意：将接口加入Eth-Trunk前需确认成员接口下没有任何配置）。

  • [SW1]interfaceEth-Trunk 1

  • [SW1-Eth-Trunk1]quit

  • [SW1]interfaceGigabitEthernet 0/0/9

  • [SW1-GigabitEthernet0/0/9]eth-trunk 1

  • [SW1-GigabitEthernet0/0/9]quit

  • [SW1]interfaceGigabitEthernet 0/0/10

  • [SW1-GigabitEthernet0/0/10]eth-trunk 1


  • [SW2]interfaceEth-Trunk 1

  • [SW2-Eth-Trunk1]quit

  • [SW2]interfaceGigabitEthernet 0/0/9

  • [SW2-GigabitEthernet0/0/9]eth-trunk 1

  • [SW2-GigabitEthernet0/0/9]quit

  • [SW2]interfaceGigabitEthernet 0/0/10

  • [SW2-GigabitEthernet0/0/10]eth-trunk 1

验证Eth-Trunk的配置结果。

  • [SW1]displayeth-trunk 1

  • Eth-Trunk1'sstate information is:

  • WorkingMode: NORMAL Hash arithmetic: According to SIP-XOR-DIP

  • LeastActive-linknumber: 1 Max Bandwidth-affected-linknumber: 8

  • Operatestatus: up Number Of Up Port In Trunk: 2

  • ----------------------------------------------------------------------------

  • PortNameStatus Weight

  • GigabitEthernet0/0/9Up 1

  • GigabitEthernet0/0/10Up 1


  • [SW2]displayeth-trunk 1

  • Eth-Trunk1'sstate information is:

  • WorkingMode: NORMAL Hash arithmetic: According to SIP-XOR-DIP

  • LeastActive-linknumber: 1 Max Bandwidth-affected-linknumber: 8

  • Operatestatus: up Number Of Up Port In Trunk: 2

  • ----------------------------------------------------------------------------

  • PortNameStatus Weight

  • GigabitEthernet0/0/9Up 1

  • GigabitEthernet0/0/10Up 1

回显信息中灰色阴影标注的部分表明Eth-Trunk工作正常，成员接口都已正确加入。

在SW1上查看接口聚合后带宽

  • [SW1]displayinterface Eth-Trunk 1

  • Eth-Trunk1current state : UP

  • Lineprotocol current state : UP

  • Description:

  • SwitchPort, PVID : 1, Hash arithmetic : According to SIP-XOR-DIP,Maximal BW: 2G, Current BW: 2G, The Maximum Frame Length is 9216

  • IPSending Frames' Format is PKTFMT_ETHNT_2, Hardware address is 4c1f-cc16-05ac

  • Currentsystem time: 2020-03-15 15:33:56-08:00

  • Inputbandwidth utilization : 0%

  • Outputbandwidth utilization : 0%

  • -------------------------------------------------------------------

  • PortNameStatus Weight

  • -------------------------------------------------------------------

  • GigabitEthernet0/0/9UP 1

  • GigabitEthernet0/0/10UP 1

  • -------------------------------------------------------------------

  • TheNumber of Ports in Trunk : 2

  • TheNumber of UP Ports in Trunk : 2


  • 在SW2上查看接口聚合后带宽

  • [SW2]displayinterface Eth-Trunk 1

  • Eth-Trunk1current state : UP

  • Lineprotocol current state : UP

  • Description:

  • SwitchPort, PVID : 1, Hash arithmetic : According to SIP-XOR-DIP,Maximal BW: 2G, Current BW: 2G, The Maximum Frame Length is 9216

  • IPSending Frames' Format is PKTFMT_ETHNT_2, Hardware address is 4c1f-cc78-50fb

  • Currentsystem time: 2020-03-15 15:35:33-08:00

  • Inputbandwidth utilization : 0%

  • Outputbandwidth utilization : 0%

  • -------------------------------------------------------------------

  • PortNameStatus Weight

  • -------------------------------------------------------------------

  • GigabitEthernet0/0/9UP 1

  • GigabitEthernet0/0/10UP 1

  • -------------------------------------------------------------------

  • TheNumber of Ports in Trunk : 2

  • TheNumber of UP Ports in Trunk : 2

步骤三 配置静态LACP模式的链路聚合

删除SW1和SW2上的G0/0/9和G0/0/10接口下的配置。

  • [SW1]interfaceGigabitEthernet 0/0/9

  • [SW1-GigabitEthernet0/0/9]undo eth-trunk

  • [SW1-GigabitEthernet0/0/9]quit

  • [SW1]interfaceGigabitEthernet 0/0/10

  • [SW1-GigabitEthernet0/0/10]undo eth-trunk


  • [SW2]interfaceGigabitEthernet 0/0/9

  • [SW2-GigabitEthernet0/0/9]undo eth-trunk

  • [SW2-GigabitEthernet0/0/9]quit

  • [SW2]interfaceGigabitEthernet 0/0/10

  • [SW2-GigabitEthernet0/0/10]undo eth-trunk

创建Eth-Trunk 1并配置该Eth-Trunk为静态LACP模式。然后将G0/0/9和G0/0/10接口加入Eth-Trunk 1。

  • [SW1]interfaceEth-Trunk 1

  • [SW1-Eth-Trunk1]mode lacp

  • [SW1-Eth-Trunk1]quit

  • [SW1]interfaceGigabitEthernet 0/0/9

  • [SW1-GigabitEthernet0/0/9]eth-trunk 1

  • [SW1-GigabitEthernet0/0/9]quit

  • [SW1]interfaceGigabitEthernet 0/0/10

  • [SW1-GigabitEthernet0/0/10]eth-trunk 1[


  • SW2]interfaceEth-Trunk 1

  • [SW2-Eth-Trunk1]mode lacp

  • [SW2-Eth-Trunk1]quit

  • [SW2]interfaceGigabitEthernet 0/0/9

  • [SW2-GigabitEthernet0/0/9]eth-trunk 1

  • [SW2-GigabitEthernet0/0/9]quit

  • [SW2]interfaceGigabitEthernet 0/0/10

  • [SW2-GigabitEthernet0/0/10]eth-trunk 1

查看交换机上Eth-Trunk的信息，查看链路是否协商成功。

  • [SW1]dispeth-trunk 1

  • Eth-Trunk1'sstate information is:

  • Local:

  • LAGID: 1 WorkingMode: STATIC

  • PreemptDelay: Disabled Hash arithmetic: According to SIP-XOR-DIP

  • SystemPriority: 32768 System ID: 4c1f-cc16-05ac

  • LeastActive-linknumber: 1 Max Active-linknumber: 8

  • Operatestatus: up Number Of Up Port In Trunk: 2

  • --------------------------------------------------------------------------------

  • ActorPortNameStatus PortType PortPri PortNo PortKey PortState Weight

  • GigabitEthernet0/0/9Selected 1GE 32768 10 305 10111100 1

  • GigabitEthernet0/0/10Selected 1GE 32768 11 305 10111100 1

  • Partner:

  • --------------------------------------------------------------------------------

  • ActorPortNameSysPri SystemID PortPri PortNo PortKey PortState

  • GigabitEthernet0/0/932768 4c1f-cc78-50fb 32768 10 305 10111100

  • GigabitEthernet0/0/1032768 4c1f-cc78-50fb 32768 11 305 10111100


  • [SW2]displayeth-trunk 1

  • Eth-Trunk1'sstate information is:

  • Local:

  • LAGID: 1 WorkingMode: STATIC

  • PreemptDelay: Disabled Hash arithmetic: According to SIP-XOR-DIP

  • SystemPriority: 32768 System ID: 4c1f-cc78-50fb

  • LeastActive-linknumber: 1 Max Active-linknumber: 8

  • Operatestatus: up Number Of Up Port In Trunk: 2

  • --------------------------------------------------------------------------------

  • ActorPortNameStatus PortType PortPri PortNo PortKey PortState Weight

  • GigabitEthernet0/0/9Selected 1GE 32768 10 305 10111100 1

  • GigabitEthernet0/0/10Selected 1GE 32768 11 305 10111100 1


  • Partner:

  • --------------------------------------------------------------------------------

  • ActorPortNameSysPri SystemID PortPri PortNo PortKey PortState

  • GigabitEthernet0/0/932768 4c1f-cc16-05ac 32768 10 305 10111100

  • GigabitEthernet0/0/1032768 4c1f-cc16-05ac 32768 11 305 10111100

在SW1上配置LACP的系统优先级为100，使其成为LACP主动端。

[SW1]lacp priority 100

配置接口的优先级确定活动链路。

  • [SW1]interfaceGigabitEthernet 0/0/9

  • [SW1-GigabitEthernet0/0/9]lacp priority 100

  • [SW1-GigabitEthernet0/0/9]quit

  • [SW1]interfaceGigabitEthernet 0/0/10

  • [SW1-GigabitEthernet0/0/10]lacp priority 100

验证Eth-Trunk的配置结果。

  • [SW1]displayeth-trunk 1

  • Eth-Trunk1'sstate information is:

  • Local:

  • LAGID: 1 WorkingMode: STATIC

  • PreemptDelay: Disabled Hash arithmetic: According to SIP-XOR-DIP

  • SystemPriority: 100 System ID: 4c1f-cc16-05ac

  • LeastActive-linknumber: 1 Max Active-linknumber: 8

  • Operatestatus: up Number Of Up Port In Trunk: 2

  • --------------------------------------------------------------------------------

  • ActorPortNameStatus PortType PortPri PortNo PortKey PortState Weight

  • GigabitEthernet0/0/9Selected 1GE 100 10 305 10111100 1

  • GigabitEthernet0/0/10Selected 1GE 100 11 305 10111100 1


  • Partner:

  • --------------------------------------------------------------------------------

  • ActorPortNameSysPri SystemID PortPri PortNo PortKey PortState

  • GigabitEthernet0/0/932768 4c1f-cc78-50fb 32768 10 305 10111100

  • GigabitEthernet0/0/1032768 4c1f-cc78-50fb 32768 11 305 10111100


  • [SW2]displayeth-trunk 1

  • Eth-Trunk1'sstate information is:

  • Local:

  • LAGID: 1 WorkingMode: STATIC

  • PreemptDelay: Disabled Hash arithmetic: According to SIP-XOR-DIP

  • SystemPriority: 32768 System ID: 4c1f-cc78-50fb

  • LeastActive-linknumber: 1 Max Active-linknumber: 8

  • Operatestatus: up Number Of Up Port In Trunk: 2

  • --------------------------------------------------------------------------------

  • ActorPortNameStatus PortType PortPri PortNo PortKey PortState Weight

  • GigabitEthernet0/0/9Selected 1GE 32768 10 305 10111100 1

  • GigabitEthernet0/0/10Selected 1GE 32768 11 305 10111100 1


  • Partner:

  • --------------------------------------------------------------------------------

  • ActorPortNameSysPri SystemID PortPri PortNo PortKey PortState

  • GigabitEthernet0/0/9100 4c1f-cc16-05ac 100 10 305 10111100

  • GigabitEthernet0/0/10100 4c1f-cc16-05ac 100 11 305 10111100

配置文件

  • [SW1]display current-configuration

  • [SW2]display current-configuration


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