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]display interface GigabitEthernet 0/0/9GigabitEthernet0/0/9 current state : UPLine protocol current state : UPDescription:Switch Port, Link-type : trunk(negotiated),PVID :    1, TPID : 8100(Hex), The Maximum Frame Length is 9216IP Sending Frames' Format is PKTFMT_ETHNT_2, Hardware address is d0d0-4ba6-aab0Current system time: 2019-11-23 14:18:37Port Mode: COMMON COPPERSpeed : 1000,   Loopback: NONEDuplex: FULL,   Negotiation: ENABLEMdi   : AUTO,   Flow-control: DISABLELast 300 seconds input rate 256 bits/sec, 0 packets/secLast 300 seconds output rate 912 bits/sec, 0 packets/secInput peak rate 13976 bits/sec, Record time: 2019-11-22 14:59:12Output peak rate 13976 bits/sec, Record time: 2019-11-22 14:59:12……output omit……

 

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[SW1]display interface GigabitEthernet 0/0/10GigabitEthernet0/0/10 current state : UPLine protocol current state : UPDescription:Switch Port, Link-type : trunk(negotiated),PVID :    1, TPID : 8100(Hex), The Maximum Frame Length is 9216IP Sending Frames' Format is PKTFMT_ETHNT_2, Hardware address is d0d0-4ba6-aab0Current system time: 2019-11-23 14:22:22Port Mode: COMMON COPPERSpeed : 1000,   Loopback: NONEDuplex: FULL,   Negotiation: ENABLEMdi   : AUTO,   Flow-control: DISABLELast 300 seconds input rate 72 bits/sec, 0 packets/secLast 300 seconds output rate 1024 bits/sec, 0 packets/secInput peak rate 14032 bits/sec, Record time: 2019-11-22 14:59:12Output peak rate 14032 bits/sec, Record time: 2019-11-22 14:59:12……output omit……

 

步骤二 配置手动模式的链路聚合

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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]interface Eth-Trunk 1[SW1-Eth-Trunk1]quit[SW1]interface GigabitEthernet 0/0/9[SW1-GigabitEthernet0/0/9]eth-trunk 1[SW1-GigabitEthernet0/0/9]quit[SW1]interface GigabitEthernet 0/0/10[SW1-GigabitEthernet0/0/10]eth-trunk 1[SW2]interface Eth-Trunk 1[SW2-Eth-Trunk1]quit[SW2]interface GigabitEthernet 0/0/9[SW2-GigabitEthernet0/0/9]eth-trunk 1[SW2-GigabitEthernet0/0/9]quit[SW2]interface GigabitEthernet 0/0/10[SW2-GigabitEthernet0/0/10]eth-trunk 1验证Eth-Trunk的配置结果。[SW1]display eth-trunk 1Eth-Trunk1's state information is:WorkingMode: NORMAL         Hash arithmetic: According to SIP-XOR-DIP         Least Active-linknumber: 1  Max Bandwidth-affected-linknumber: 8              Operate status: up          Number Of Up Port In Trunk: 2                     ----------------------------------------------------------------------------PortName                      Status      WeightGigabitEthernet0/0/9            Up             1    GigabitEthernet0/0/10           Up             1        [SW2]display eth-trunk 1Eth-Trunk1's state information is:WorkingMode: NORMAL         Hash arithmetic: According to SIP-XOR-DIP         Least Active-linknumber: 1  Max Bandwidth-affected-linknumber: 8              Operate status: up          Number Of Up Port In Trunk: 2                     ----------------------------------------------------------------------------PortName                      Status      WeightGigabitEthernet0/0/9            Up            1      GigabitEthernet0/0/10           Up            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

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[SW1]display interface Eth-Trunk 1Eth-Trunk1 current state : UPLine protocol current state : UPDescription:Switch Port, PVID :    1, Hash arithmetic : According to SIP-XOR-DIP,Maximal BW: 2G, Current BW: 2G, The Maximum Frame Length is 9216IP Sending Frames' Format is PKTFMT_ETHNT_2, Hardware address is 4c1f-cc16-05acCurrent system time: 2020-03-15 15:33:56-08:00    Input bandwidth utilization  :    0%    Output bandwidth utilization :    0%-------------------------------------------------------------------PortName                      Status      Weight-------------------------------------------------------------------GigabitEthernet0/0/9             UP          1GigabitEthernet0/0/10            UP          1-------------------------------------------------------------------The Number of Ports in Trunk : 2The Number of UP Ports in Trunk : 2

 

在SW2上查看接口聚合后带宽

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[SW2]display interface Eth-Trunk 1Eth-Trunk1 current state : UPLine protocol current state : UPDescription:Switch Port, PVID :    1, Hash arithmetic : According to SIP-XOR-DIP,Maximal BW: 2G, Current BW: 2G, The Maximum Frame Length is 9216IP Sending Frames' Format is PKTFMT_ETHNT_2, Hardware address is 4c1f-cc78-50fbCurrent system time: 2020-03-15 15:35:33-08:00    Input bandwidth utilization  :    0%    Output bandwidth utilization :    0%-------------------------------------------------------------------PortName                      Status      Weight-------------------------------------------------------------------GigabitEthernet0/0/9             UP          1GigabitEthernet0/0/10            UP          1-------------------------------------------------------------------The Number of Ports in Trunk : 2The Number 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。

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[SW1]interface GigabitEthernet 0/0/9[SW1-GigabitEthernet0/0/9]undo eth-trunk[SW1-GigabitEthernet0/0/9]quit[SW1]interface GigabitEthernet 0/0/10[SW1-GigabitEthernet0/0/10]undo eth-trunk[SW2]interface GigabitEthernet 0/0/9[SW2-GigabitEthernet0/0/9]undo eth-trunk[SW2-GigabitEthernet0/0/9]quit[SW2]interface GigabitEthernet 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。

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[SW1]interface Eth-Trunk 1[SW1-Eth-Trunk1]mode lacp[SW1-Eth-Trunk1]quit       [SW1]interface GigabitEthernet 0/0/9[SW1-GigabitEthernet0/0/9]eth-trunk 1[SW1-GigabitEthernet0/0/9]quit[SW1]interface GigabitEthernet 0/0/10[SW1-GigabitEthernet0/0/10]eth-trunk 1[SW2]interface Eth-Trunk 1[SW2-Eth-Trunk1]mode lacp[SW2-Eth-Trunk1]quit[SW2]interface GigabitEthernet 0/0/9[SW2-GigabitEthernet0/0/9]eth-trunk 1[SW2-GigabitEthernet0/0/9]quit[SW2]interface GigabitEthernet 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。

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[SW1]disp eth-trunk 1Eth-Trunk1's state information is:Local:LAG ID: 1                   WorkingMode: STATIC                               Preempt Delay: Disabled     Hash arithmetic: According to SIP-XOR-DIP         System Priority: 32768      System ID: 4c1f-cc16-05ac                         Least Active-linknumber: 1  Max Active-linknumber: 8                          Operate status: up          Number Of Up Port In Trunk: 2                     --------------------------------------------------------------------------------ActorPortName          Status   PortType PortPri PortNo PortKey PortState WeightGigabitEthernet0/0/9   Selected   1GE      32768   10     305     10111100  1     GigabitEthernet0/0/10  Selected   1GE      32768   11     305     10111100  1     Partner:--------------------------------------------------------------------------------ActorPortName          SysPri   SystemID        PortPri PortNo PortKey PortStateGigabitEthernet0/0/9   32768    4c1f-cc78-50fb  32768   10     305     10111100GigabitEthernet0/0/10  32768    4c1f-cc78-50fb  32768   11     305     10111100[SW2]display eth-trunk 1Eth-Trunk1's state information is:Local:LAG ID: 1                   WorkingMode: STATIC                               Preempt Delay: Disabled     Hash arithmetic: According to SIP-XOR-DIP         System Priority: 32768      System ID: 4c1f-cc78-50fb                         Least Active-linknumber: 1  Max Active-linknumber: 8                          Operate status: up          Number Of Up Port In Trunk: 2                     --------------------------------------------------------------------------------ActorPortName          Status   PortType PortPri PortNo PortKey PortState WeightGigabitEthernet0/0/9   Selected   1GE      32768   10     305     10111100  1     GigabitEthernet0/0/10  Selected   1GE      32768   11     305     10111100  1     Partner:--------------------------------------------------------------------------------ActorPortName          SysPri   SystemID        PortPri PortNo PortKey PortStateGigabitEthernet0/0/9   32768    4c1f-cc16-05ac  32768   10     305     10111100GigabitEthernet0/0/10  32768    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。

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[SW1]interface GigabitEthernet 0/0/9[SW1-GigabitEthernet0/0/9]lacp priority 100[SW1-GigabitEthernet0/0/9]quit[SW1]interface GigabitEthernet 0/0/10[SW1-GigabitEthernet0/0/10]lacp priority 100

 

验证Eth-Trunk的配置结果。

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[SW1]display eth-trunk 1Eth-Trunk1's state information is:Local:LAG ID: 1                   WorkingMode: STATIC                               Preempt Delay: Disabled     Hash arithmetic: According to SIP-XOR-DIP         System Priority: 100        System ID: 4c1f-cc16-05ac                         Least Active-linknumber: 1  Max Active-linknumber: 8                          Operate status: up          Number Of Up Port In Trunk: 2                     --------------------------------------------------------------------------------ActorPortName          Status   PortType PortPri PortNo PortKey PortState WeightGigabitEthernet0/0/9   Selected 1GE        100     10     305     10111100  1     GigabitEthernet0/0/10  Selected 1GE        100     11     305     10111100  1     Partner:--------------------------------------------------------------------------------ActorPortName          SysPri   SystemID        PortPri PortNo PortKey PortStateGigabitEthernet0/0/9   32768    4c1f-cc78-50fb  32768   10     305     10111100GigabitEthernet0/0/10  32768    4c1f-cc78-50fb  32768   11     305     10111100[SW2]display eth-trunk 1Eth-Trunk1's state information is:Local:LAG ID: 1                   WorkingMode: STATIC                               Preempt Delay: Disabled     Hash arithmetic: According to SIP-XOR-DIP         System Priority: 32768      System ID: 4c1f-cc78-50fb                         Least Active-linknumber: 1  Max Active-linknumber: 8                          Operate status: up          Number Of Up Port In Trunk: 2                     --------------------------------------------------------------------------------ActorPortName          Status   PortType PortPri PortNo PortKey PortState WeightGigabitEthernet0/0/9   Selected 1GE      32768   10     305     10111100  1     GigabitEthernet0/0/10  Selected 1GE      32768   11     305     10111100  1     Partner:--------------------------------------------------------------------------------ActorPortName          SysPri   SystemID        PortPri PortNo PortKey     PortStateGigabitEthernet0/0/9     100      4c1f-cc16-05ac    100     10     305     10111100GigabitEthernet0/0/10    100      4c1f-cc16-05ac    100     11     305     10111100

 

 

配置文件

 

• [SW1]display current-configuration
  [SW2]display current-configuration 

end