#SWA配置
[SWA]m-lag system-mac a08e-80d2-0100 #相同，建议选主设备为系统MAC
[SWA]m-lag system-number 1 #主设备为1，备设备为2
[SWA]m-lag system-priority 123 #相同优先级
[SWA]m-lag keepalive ip destination 1.1.1.2 source 1.1.1.1

[SWA]int g1/0/24
[SWA-GigabitEthernet1/0/24]po li rou
[SWA-GigabitEthernet1/0/24]ip add 1.1.1.1 30
[SWA]m-lag mad exclude int g1/0/24 #设置keepalive口为保留口，不会被shutdown

[SWA]int br 1 #peer-link口
[SWA-Bridge-Aggregation1]link mo dy #动态模式

[SWA]int rang g1/0/1 g1/0/2
[SWA-if-range]po li gr 1

[SWA]int br 1
[SWA-Bridge-Aggregation1]port m-lag peer-link 1 #设置为peer-link口

[SWA]int br 100 #下联的m-lag口
[SWA-Bridge-Aggregation100]link mo dy
[SWA]int g1/0/3
[SWA-GigabitEthernet1/0/3]po li gr 100
[SWA]int br 100
[SWA-Bridge-Aggregation100]port m-lag group 100 #设置m-lag组为100

#SWB配置
[SWB]m-lag system-mac a08e-80d2-0100 #相同，建议选主设备为系统MAC
[SWB]m-lag system-number 2 #主设备为1，备设备为2
[SWB]m-lag system-priority 123 #相同优先级
[SWB]m-lag keepalive ip destination 1.1.1.1 source 1.1.1.2

[SWB]int g1/0/24
[SWB-GigabitEthernet1/0/24]po li rou
[SWB-GigabitEthernet1/0/24]ip add 1.1.1.2 30
[SWB]m-lag mad exclude int g1/0/24 #设置keepalive口为保留口，不会被shutdown

[SWB]int br 1 #peer-link口
[SWB-Bridge-Aggregation1]link mo dy #动态模式
[SWB]int rang g1/0/1 g1/0/2
[SWB-if-range]po li gr 1
[SWB]int br 1
[SWB-Bridge-Aggregation1]port m-lag peer-link 1 #设置为peer-link口

[SWB]int br 100 #下联的m-lag口
[SWB-Bridge-Aggregation100]link mo dy
[SWB]int g1/0/3
[SWB-GigabitEthernet1/0/3]po li gr 100
[SWB]int br 100
[SWB-Bridge-Aggregation100]port m-lag group 100 #设置m-lag组为100

#备注
本实验中，SWB的配置与SWA相比较，仅以下不同
（1）系统编号不同
（2）Keepalive配置不同，如接口IP和源目IP

#SWC配置
[SWC]int br 100
[SWC-Bridge-Aggregation100]link mo dy
[SWC-Bridge-Aggregation100]int rang g1/0/1 g1/0/2

#如果HCL模拟器的M-LAG起不来，两边配置以下命令，忽略一致性检查
#仅实验目的，生产环境需谨慎
m-lag consistency-check disable

#看状态
（1）[SWA]display m-lag keepalive
Neighbor keepalive link status (cause): Up
Neighbor is alive for: 1003 s 776 ms
Keepalive packet transmission status:
Sent: Successful
Received: Successful
Last received keepalive packet information:
Source IP address: 1.1.1.2
Time: 2023/06/28 17:58:38
Action: Accept

M-LAG keepalive parameters:
Destination IP address: 1.1.1.2
Source IP address: 1.1.1.1
Keepalive UDP port : 6400
Keepalive VPN name : N/A
Keepalive interval : 1000 ms
Keepalive timeout : 5 sec
Keepalive hold time: 3 sec
（2）[SWA]display m-lag summary
Flags: A – Aggregate interface down, B – No peer M-LAG interface configured
C – Configuration consistency check failed

Peer-link interface: BAGG1
Peer-link interface state (cause): UP
Keepalive link state (cause): UP

M-LAG interface information
M-LAG IF M-LAG group Local state (cause) Peer state Remaining down time(s)
BAGG100 100 UP UP -