百度解釋
鏈路聚合（英語：Link Aggregation）是一個計算機網絡術語，指將多個物理端口匯聚在一起，形成一個邏輯端口，以實現出/入流量吞吐量在各成員端口的負荷分擔，交換機根據用戶配置的端口負荷分擔策略決定網絡封包從哪個成員端口發送到對端的交換機。當交換機檢測到其中一個成員端口的鏈路發生故障時，就停止在此端口上發送封包，並根據負荷分擔策略在剩下的鏈路中重新計算報文的發送端口，故障端口恢復后再次擔任收發端口。鏈路聚合在增加鏈路帶寬、實現鏈路傳輸彈性和工程冗余等方面是一項很重要的技術。
簡介：
鏈路聚合（英語：Link Aggregation）是一個
計算機網絡術語，指將多個物理端口匯聚在一起，形成一個邏輯端口，以實現出/入流量
吞吐量在各成員端口的負荷分擔，交換機根據用戶配置的端口負荷分擔策略決定
網絡封包從哪個成員端口發送到對端的交換機。當交換機檢測到其中一個成員端口的鏈路發生故障時，就停止在此端口上發送封包，並根據負荷分擔策略在剩下的鏈路中重新計算報文的發送端口，故障端口恢復后再次擔任收發端口。鏈路聚合在增加鏈路帶寬、實現鏈路傳輸彈性和工程冗余等方面是一項很重要的技術。
進一步用來描述該方法的總括術語還包括port trunking，link bundling，以太網/網絡/ NIC綁定（Ethernet/network/NIC bonding）或網卡綁定（NIC teaming）。這些總括術語不僅包括與供應商無關的標准，如定義於IEEE 802.1ax和
IEEE 802.3ad用於
以太網的鏈路聚合控制協議（LACP），或以前的
IEEE 802.3ad定義，也包括各種有專利的解決方案。
[1]
單vlan配置鏈路聚合
拓撲圖：
1 The device is running! 3 <Huawei> 4 <Huawei>undo ter m #關閉日志回顯 5 Info: Current terminal monitor is off. 6 <Huawei>sys 7 Enter system view, return user view with Ctrl+Z. 8 [Huawei]int eth 9 [Huawei]int Ethernet 10 [Huawei]int Eth-Trunk 1 #創建鏈路聚合端口 11 [Huawei-Eth-Trunk1]trun 12 [Huawei-Eth-Trunk1]trunkport e 0/0/2 to 0/0/3 #將e0/0/2和e0/0/3接口加入到聚合端口中 13 Info: This operation may take a few seconds. Please wait for a moment...done. 14 [Huawei-Eth-Trunk1]port link tr 15 [Huawei-Eth-Trunk1]port link trunk #配置聚合端口的模式 16 [Huawei-Eth-Trunk1]port tr all vlan 10 #配置放行vlan10 17 [Huawei-Eth-Trunk1]q 18 [Huawei]vlan 10 #創建vlan10 19 [Huawei-vlan10]int vlan 10 20 [Huawei-Vlanif10]q 21 [Huawei]int e0/0/1 #配置接口模式 22 [Huawei-Ethernet0/0/1]port link acc 23 [Huawei-Ethernet0/0/1]port def vlan 10 24 [Huawei-Ethernet0/0/1]
1 The device is running! 2 3 <Huawei>undo ter m 4 Info: Current terminal monitor is off. 5 <Huawei>sys 6 Enter system view, return user view with Ctrl+Z. 7 [Huawei]vlan 10 8 [Huawei-vlan10]int eth-trunk 1 9 [Huawei-Eth-Trunk1]trunk e 0/0/2 to 0/0/3 10 Info: This operation may take a few seconds. Please wait for a moment...done. 11 [Huawei-Eth-Trunk1]port link tr 12 [Huawei-Eth-Trunk1]port tr all vlan 10 13 [Huawei-Eth-Trunk1]q 14 [Huawei]int e0/0/1 15 [Huawei-Ethernet0/0/1]port link acc 16 [Huawei-Ethernet0/0/1]port def vlan 10 17 [Huawei-Ethernet0/0/1]
結果：配置需要時間生效
跨vlan配置鏈路聚合
拓撲圖：
1 The device is running! 2 3 <Huawei> 4 <Huawei>undo ter m 5 Info: Current terminal monitor is off. 6 <Huawei>sys 7 Enter system view, return user view with Ctrl+Z. 8 [Huawei]int vlan 2 9 Error: The VLAN does not exist. 10 [Huawei]vlan 2 11 [Huawei-vlan2]int vlan 2 12 [Huawei-Vlanif2]ip add 192.168.2.254 24 13 [Huawei-Vlanif2]int vlan 3 14 Error: The VLAN does not exist. 15 [Huawei]vlan 3 16 [Huawei-vlan3]int vlan 3 17 [Huawei-Vlanif3]ip add 192.168.3.2 24 18 [Huawei-Vlanif3]int e0/0/1 19 [Huawei-Ethernet0/0/1]port link acc 20 [Huawei-Ethernet0/0/1]port def vlan 2 21 [Huawei-Ethernet0/0/1]int eth-trunk 23 22 [Huawei-Eth-Trunk23]tu 23 [Huawei-Eth-Trunk23]trun 24 [Huawei-Eth-Trunk23]trunkport e 0/0/2 to 0/0/3 25 Info: This operation may take a few seconds. Please wait for a moment...done. 26 [Huawei-Eth-Trunk23]port link trunk 27 [Huawei-Eth-Trunk23]port trunk all vlan 2 3 28 [Huawei-Eth-Trunk23]q 29 [Huawei]ip route-static 192.168.3.0 24 192.168.2.3 30 [Huawei]
1 The device is running! 2 3 <Huawei>undo ter m 4 Info: Current terminal monitor is off. 5 <Huawei>sys 6 Enter system view, return user view with Ctrl+Z. 7 [Huawei]vlan b 2 3 8 Info: This operation may take a few seconds. Please wait for a moment...done. 9 [Huawei]int vlan 2 10 [Huawei-Vlanif2]ip add 192.168.2.3 24 11 [Huawei-Vlanif2]int vlan 3 12 [Huawei-Vlanif3]ip add 192.168.3.254 24 13 [Huawei-Vlanif3]int e0/0/1 14 [Huawei-Ethernet0/0/1]port link acc 15 [Huawei-Ethernet0/0/1]port def vlan 3 16 [Huawei-Ethernet0/0/1]int eth-trunk 23 17 [Huawei-Eth-Trunk23]trunk e 0/0/2 to 0/0/3 18 Info: This operation may take a few seconds. Please wait for a moment...done. 19 [Huawei-Eth-Trunk23]port link trunk 20 [Huawei-Eth-Trunk23]port trunk all vlan 2 3 21 [Huawei-Eth-Trunk23]q 22 [Huawei]ip route-static 192.168.2.0 24 192.168.3.2 23 [Huawei]
結果：
