华为交换机开启链路聚合"/>
华为交换机开启链路聚合
华为交换机开启链路聚合
1. 使用eNSP虚拟软件，拿出2台交换机，然后将G0/0/1、G0/0/2和G0/0/3配置为一个链路聚合（Eth-Trunk1）
**LSW1的配置：**
<Huawei> sy
[Huawei] interface Eth-Trunk 1
[Huawei-Eth-Trunk1]trunkport GigabitEthernet 0/0/1 to 0/0/3
[Huawei-Eth-Trunk1]display eth-trunk 1
Eth-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: down Number Of Up Port In Trunk: 0
--------------------------------------------------------------------------------
PortName Status Weight
GigabitEthernet0/0/1 Down 1
GigabitEthernet0/0/2 Down 1
GigabitEthernet0/0/3 Down 1 **LSW2的配置：**
<Huawei> sy
[Huawei] interface Eth-Trunk 1
[Huawei-Eth-Trunk1]trunkport GigabitEthernet 0/0/1 to 0/0/3
[Huawei-Eth-Trunk1]display eth-trunk 1
Eth-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: down Number Of Up Port In Trunk: 0
--------------------------------------------------------------------------------
PortName Status Weight
GigabitEthernet0/0/1 Down 1
GigabitEthernet0/0/2 Down 1
GigabitEthernet0/0/3 Down 1 这样就可以完成了2个配置了。
2. 如果一个设备已经配置好了Eth-Trunk，想继续添加一个呢
**借用之前的LSW1的Eth-Trunk1**
（这步实验我们只是用第一台交换机多增加一个口，第二个交换机不增加，这样可以方便第三步的实验）
[Huawei-Eth-Trunk1] display eth-trunk 1
Eth-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: down Number Of Up Port In Trunk: 0
--------------------------------------------------------------------------------
PortName Status Weight
GigabitEthernet0/0/1 Down 1
GigabitEthernet0/0/2 Down 1
GigabitEthernet0/0/3 Down 1
[Huawei-Eth-Trunk1] trunkport GigabitEthernet 0/0/4
[Huawei-Eth-Trunk1] display eth-trunk 1
Eth-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: down Number Of Up Port In Trunk: 0
--------------------------------------------------------------------------------
PortName Status Weight
GigabitEthernet0/0/1 Down 1
GigabitEthernet0/0/2 Down 1
GigabitEthernet0/0/3 Down 1
GigabitEthernet0/0/4 Down 1 3. 动态协商和手动模式
手动模式： 是不协商的，会导致网络异常
动态协商： 是会进行协商，确认双方交换机的端口是否都配置正确（主要是怕网管设置出错）
**重新整理下之前的配置：**
LSW1：G0/0/1-G0/0/4 都设置在了Eth-Trunk1中。
LSW2：G0/0/1-G0/0/3 都设置在了Eth-Trunk1中。
我们之前配置的Eth-Trunk1都是默认的。所以我们可以使用一下命令查看是什么模式：
**LSW1**
[Huawei-Eth-Trunk1] display eth-trunk 1
Eth-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: 4
--------------------------------------------------------------------------------
PortName Status Weight
GigabitEthernet0/0/1 Up 1
GigabitEthernet0/0/2 Up 1
GigabitEthernet0/0/3 Up 1
GigabitEthernet0/0/4 Up 1 **LSW2**
[Huawei-Eth-Trunk1] dis eth-trunk 1
Eth-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: 3
--------------------------------------------------------------------------------
PortName Status Weight
GigabitEthernet0/0/1 Up 1
GigabitEthernet0/0/2 Up 1
GigabitEthernet0/0/3 Up 1 **我们可以查看到： WorkingMode: NORMAL （这个就是模式的，NORMAL就是默认的）**
同时我们也可以查看到第一个交换机是1-4口，第二个交换机是1-3口绑定了，这样导致出现网络的异常。
所以我们需要将模式更改为**动态协商模式**
首先我们需要将之前的配置删除才可以更改模式。
**LSW1的配置**
[Huawei-Eth-Trunk1] undo trunkport GigabitEthernet 0/0/1 to 0/0/4
[Huawei-Eth-Trunk1] mode lacp-static # 将模式设置为LACP
[Huawei-Eth-Trunk1] trunkport GigabitEthernet 0/0/1 to 0/0/4**LSW2的配置**
[Huawei-Eth-Trunk1] undo trunkport GigabitEthernet 0/0/1 to 0/0/3
[Huawei-Eth-Trunk1] mode lacp-static # 将模式设置为LACP
[Huawei-Eth-Trunk1] trunkport GigabitEthernet 0/0/1 to 0/0/3将2个交换机配置好之后我们就可以查看2个Eth-Trunk的情况了。
**LSW1的配置**
[Huawei-Eth-Trunk1]display eth-trunk 1
Eth-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-ccec-121c
Least Active-linknumber: 1 Max Active-linknumber: 8
Operate status: up Number Of Up Port In Trunk: 3
--------------------------------------------------------------------------------
ActorPortName Status PortType PortPri PortNo PortKey PortState Weight
GigabitEthernet0/0/1 Selected 1GE 32768 2 305 10111100 1
GigabitEthernet0/0/2 Selected 1GE 32768 3 305 10111100 1
GigabitEthernet0/0/3 Selected 1GE 32768 4 305 10111100 1
GigabitEthernet0/0/4 Unselect 1GE 32768 5 305 10100010 1 Partner:
--------------------------------------------------------------------------------
ActorPortName SysPri SystemID PortPri PortNo PortKey PortState
GigabitEthernet0/0/1 32768 4c1f-cc28-39f4 32768 2 305 10111100
GigabitEthernet0/0/2 32768 4c1f-cc28-39f4 32768 3 305 10111100
GigabitEthernet0/0/3 32768 4c1f-cc28-39f4 32768 4 305 10111100
GigabitEthernet0/0/4 0 0000-0000-0000 0 0 0 10100011**LSW2的配置**
[Huawei-Eth-Trunk1]dis et 1
Eth-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-cc28-39f4
Least Active-linknumber: 1 Max Active-linknumber: 8
Operate status: up Number Of Up Port In Trunk: 3
--------------------------------------------------------------------------------
ActorPortName Status PortType PortPri PortNo PortKey PortState Weight
GigabitEthernet0/0/1 Selected 1GE 32768 2 305 10111100 1
GigabitEthernet0/0/2 Selected 1GE 32768 3 305 10111100 1
GigabitEthernet0/0/3 Selected 1GE 32768 4 305 10111100 1 Partner:
--------------------------------------------------------------------------------
ActorPortName SysPri SystemID PortPri PortNo PortKey PortState
GigabitEthernet0/0/1 32768 4c1f-ccec-121c 32768 2 305 10111100
GigabitEthernet0/0/2 32768 4c1f-ccec-121c 32768 3 305 10111100
GigabitEthernet0/0/3 32768 4c1f-ccec-121c 32768 4 305 10111100[Huawei-Eth-Trunk1]由上我们可以查看到了LSW1的 GigabitEthernet0/0/4 的状态是Unselect
因为是动态协商，所以这边会进行确认对方的交换机是否有配置这个端口，如果没有，就会将这个进行丢弃
4. 动态协商
动态协商主要有2个：
共有技术：Link Aggregate Control protocol（LACP）
私有技术：Port Aggregate Protocol （PAGP，这个只有Cisco交换机有）
5. 配置Vlan
之前配置好了端口之后，我们就需要设置这个虚拟端口可以通过那些vlan
[Huawei] interface Eth-Trunk 1
[Huawei-Eth-Trunk1] port link-type trunk # 先设置这个端口是trunk，这样就可以通过多个vlan信息
[Huawei-Eth-Trunk1] port trunk allow-pass vlan 10 20 # 设置允许10 20 的vlan信息可以通过
[A3-Eth-Trunk3] port trunk allow-pass vlan all # 当然我我们也可以直接设置 vlan all 这个就表示所有的vlan都通过
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