链路聚合，Eth-trunk，ip-trunk
链路聚合：顾名思义，就是将多条链路聚合成一条链路，这条链路的带宽等于所有有效链路的总和；属于可靠性技术。
主要作用是：提高带宽，增加可靠性
在eNSP中，交换机是只可以启用二层的链路聚合，路由器中则可以将链路切换到第三层；
常用命令：
interface Eth-trunk [id]
//创建聚合口，并进入聚合口接口视图，id范围0~63，id只在本设备中起作用
例如：interface Eth-trunk 0
mode lacp-static
//使用静态lacp模式
命令使用视图：链路聚合口接口视图
例如：[Huawei-Eth-Trunk1]mode lacp-static
trunkport [接口类型Ethernet | GigabitEthernet] [接口id] [to [接口id]]
//将接口加入聚合链路中
命令使用视图：链路聚合口接口视图
例如：[Huawei-Eth-Trunk1]trunkport GigabitEthernet 0/0/1 to 0/0/3
eth-trunk [聚合口-id]
//将接口加入聚合链路中
命令使用视图：交换机接口视图
例如：[Huawei-GigabitEthernet0/0/1]eth-trunk 1
max active-linknumber [1-8]
//配置有效链路最大数量，当聚合链路超过最大数时，将多余出来的链路作为备份链路，当有效链路中有链路down掉后，则从备用链路中选取出新的链路来替代down的链路；
命令使用视图：链路聚合口接口视图
例如：[Huawei-Eth-Trunk1]max active-linknumber 3
load-balance [负载均衡模式]
//配置链路的负载均衡模式
负载均衡模式
src-mac
源mac地址
dst-mac
目的mac地址
src-ip
源ip地址
dst-ip
目的ip地址
src-dst-mac
源和目的mac地址
src-dst-ip
源和目的ip地址（默认配置）
命令使用视图：链路聚合口接口视图
例如：[Huawei-Eth-Trunk1]load-balance src-dst-mac
undo portswitch
//切换三层路由模式
命令使用视图：链路聚合口接口视图
例如：[Huawei-Eth-Trunk1]undo portswitch
文章来源地址https://www.toymoban.com/news/detail-496126.html
二层链路聚合配置思路：
- 创建聚合口
- 配置聚合链路的模式（可省略）
- 添加物理接口
- 配置接口模式：access，trunk，hybrid
- 配置接口模式的pvid，TG，UT相关的参数
- 配置负载均衡（可省略）
- 配置最大活跃接口数量（可省略）
三层链路聚合配置思路
- 创建聚合口
- 将接口切换到第三层
- 添加物理接口
- 添加IP地址及相关配置
- 配置负载均衡模式（可省略）
- 配置最大活跃接口数量（可省略）
配置注意事项：配置聚合链路模式前不可以先添加物理接口，添加物理接口后才可以配置接口模式及相关参数，否则会造成添加物理接口失败！
实验
本篇只讲关于Eth-trunk的配置，本实验中不涉及三层的链路聚合
其他相关配置：https://blog.csdn.net/weixin_46678521/article/details/126472140
S1
[S1]interface Eth-trunk 1
[S1-Eth-Trunk1]trunkport g 0/0/1 to 0/0/2
Info: This operation may take a few seconds. Please wait for a moment...done.
[S1-Eth-Trunk1]port link-type trunk
[S1-Eth-Trunk1]port trunk allow-pass vlan 10 100
[S1-Eth-Trunk1]load-balance src-dst-mac
[S1-Eth-Trunk1]quit
S2
[S2]interface Eth-trunk 1
[S2-Eth-Trunk1]trunkport g 0/0/1 to 0/0/2
Info: This operation may take a few seconds. Please wait for a moment...done.
[S2-Eth-Trunk1]port link-type trunk
[S2-Eth-Trunk1]port trunk allow-pass vlan 20 100
[S2-Eth-Trunk1]load-balance src-dst-mac
[S2-Eth-Trunk1]quit
S3
[S3]interface Eth-trunk 1
[S3-Eth-Trunk1]trunkport g 0/0/1 to 0/0/2
Info: This operation may take a few seconds. Please wait for a moment...done.
[S3-Eth-Trunk1]port link-type trunk
[S3-Eth-Trunk1]port trunk allow-pass vlan 30 100
[S3-Eth-Trunk1]load-balance src-dst-mac
[S3-Eth-Trunk1]quit
S4
[S4]interface Eth-trunk 1
[S4-Eth-Trunk1]trunkport g 0/0/1 to 0/0/2
Info: This operation may take a few seconds. Please wait for a moment...done.
[S4-Eth-Trunk1]port link-type trunk
[S4-Eth-Trunk1]port trunk allow-pass vlan 40 100
[S4-Eth-Trunk1]load-balance src-dst-mac
[S4-Eth-Trunk1]quit
SW1
[SW1]interface Eth-trunk 1
[SW1-Eth-Trunk1]trunkport g 0/0/11 to 0/0/12
Info: This operation may take a few seconds. Please wait for a moment...done.
[SW1-Eth-Trunk1]port link-type trunk
[SW1-Eth-Trunk1]port trunk allow-pass vlan 10 100
[SW1-Eth-Trunk1]load-balance src-dst-mac
[SW1-Eth-Trunk1]quit
[SW1]interface Eth-trunk 2
[SW1-Eth-Trunk2]trunkport g 0/0/13 to 0/0/14
Info: This operation may take a few seconds. Please wait for a moment...done.
[SW1-Eth-Trunk2]port link-type trunk
[SW1-Eth-Trunk2]port trunk allow-pass vlan 20 100
[SW1-Eth-Trunk2]load-balance src-dst-mac
[SW1-Eth-Trunk2]quit
[SW1]interface Eth-trunk 3
[SW1-Eth-Trunk3]trunkport g 0/0/23 to 0/0/24
Info: This operation may take a few seconds. Please wait for a moment...done.
[SW1-Eth-Trunk3]port link-type trunk
[SW1-Eth-Trunk3]port trunk allow-pass vlan 6 100
[SW1-Eth-Trunk3]load-balance src-dst-ip
[SW1-Eth-Trunk3]quit
SW2
[SW2]interface Eth-trunk 1
[SW2-Eth-Trunk1]trunkport g 0/0/11 to 0/0/12
Info: This operation may take a few seconds. Please wait for a moment...done.
[SW2-Eth-Trunk1]port link-type trunk
[SW2-Eth-Trunk1]port trunk allow-pass vlan 30 100
[SW2-Eth-Trunk1]load-balance src-dst-mac
[SW2-Eth-Trunk1]quit
[SW2]interface Eth-trunk 2
[SW2-Eth-Trunk2]trunkport g 0/0/13 to 0/0/14
Info: This operation may take a few seconds. Please wait for a moment...done.
[SW2-Eth-Trunk2]port link-type trunk
[SW2-Eth-Trunk2]port trunk allow-pass vlan 40 100
[SW2-Eth-Trunk2]load-balance src-dst-mac
[SW2-Eth-Trunk2]quit
[SW2]interface Eth-trunk 3
[SW2-Eth-Trunk3]trunkport g 0/0/23 to 0/0/24
Info: This operation may take a few seconds. Please wait for a moment...done.
[SW2-Eth-Trunk3]port link-type trunk
[SW2-Eth-Trunk3]port trunk allow-pass vlan 6 100
[SW2-Eth-Trunk3]load-balance src-dst-ip
[SW2-Eth-Trunk3]quit
LSW1
[LSW1]interface Eth-trunk 1
[LSW1-Eth-Trunk1]trunkport g 0/0/23 to 0/0/24
Info: This operation may take a few seconds. Please wait for a moment...done.
[LSW1-Eth-Trunk1]port link-type trunk
[LSW1-Eth-Trunk1]port trunk allow-pass vlan 2 to 5 7
[LSW1-Eth-Trunk1]load-balance src-dst-mac
[LSW1-Eth-Trunk1]quit
LSW2
[LSW2]interface Eth-trunk 1
[LSW2-Eth-Trunk1]trunkport g 0/0/23 to 0/0/24
Info: This operation may take a few seconds. Please wait for a moment...done.
[LSW2-Eth-Trunk1]port link-type trunk
[LSW2-Eth-Trunk1]port trunk allow-pass vlan 2 to 5 7
[LSW2-Eth-Trunk1]load-balance src-dst-mac
[LSW2-Eth-Trunk1]quit文章来源：https://www.toymoban.com/news/detail-496126.html
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