1、組網需求
四台伺服器1、2、3、4做好埠聚合，並接入堆疊交換機，堆疊交換機再連線外網核心交換機聚合埠。伺服器都配置屬於vlan 83，接入交換機與核心交換機埠都配置trunk口，核心和接入都通過聚合組18互聯。
2、組網圖
3、具體配置
1）接入交換機配置：
//建立
鏈路聚合介面
inte***ce bridge-aggregation1
port access vlan 83
#inte***ce bridge-aggregation2
port access vlan 83
#inte***ce bridge-aggregation3
port access vlan 83
#inte***ce bridge-aggregation4
port access vlan 83
#inte***ce bridge-aggregation18 //連線核心交換機
description to idc-w-37
port link-type trunk
undo port trunk permit vlan 1
port trunk permit vlan 2 to 4094
//將埠加入到聚合組1
inte***ce gigabitethernet1/0/1
port access vlan 83
port link-aggregation group 1
#inte***ce gigabitethernet2/0/1
port access vlan 83
port link-aggregation group 1
//將埠加入到聚合組2
inte***ce gigabitethernet1/0/2
port access vlan 83
port link-aggregation group 2
#inte***ce gigabitethernet2/0/2
port access vlan 83
port link-aggregation group 2
//將埠加入到聚合組3
inte***ce gigabitethernet1/0/3
description a17 6-7u 83.4
port access vlan 83
port link-aggregation group 3
#inte***ce gigabitethernet2/0/3
port access vlan 83
port link-aggregation group 3
//將埠加入到聚合組4
inte***ce gigabitethernet1/0/4
port access vlan 83
port link-aggregation group 4
#inte***ce gigabitethernet2/0/4
port access vlan 83
port link-aggregation group 4
#//將埠加入到聚合組18
inte***ce gigabitethernet1/0/49
description to 1#1-idc-w 37
port link-type trunk
undo port trunk permit vlan 1
port trunk permit vlan 2 to 4094
port link-aggregation group 18
#inte***ce gigabitethernet2/0/49
description to 1#1-idc-w 38
port link-type trunk
undo port trunk permit vlan 1
port trunk permit vlan 2 to 4094
port link-aggregation group 18
2）核心交換機配置：
//建立
鏈路聚合
介面18
inte***ce bridge-aggregation18
description to a15 industrial safety sw
port link-type trunk
undo port trunk permit vlan 1
port trunk permit vlan 2 to 4094
//將埠加入到聚合組18中
inte***ce gigabitethernet4/0/37
port link-mode bridge
description to idc-a15-3-w 49
port link-type trunk
undo port trunk permit vlan 1
port trunk permit vlan 2 to 4094
port link-aggregation group 18
#inte***ce gigabitethernet4/0/38
port link-mode bridge
description to idc-a15-3-w 49
port link-type trunk
undo port trunk permit vlan 1
port trunk permit vlan 2 to 4094
port link-aggregation group 18
#疑問：接入交換機與核心交換機的鏈路聚合
介面是否必須一樣？能不能乙個是5另外乙個是18？
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