简单组网（Eth-Trunk）负载分担链路聚合

两台交换机上有vlan101和vlan102的网络，两台交换机之间采用Eth-Trunk模式，实现链路聚合负载分担。

1、拓扑图

2、创建vlan，并将接口加入到vlan中

SWA

[swa]vlan batch 101 102
Info: This operation may take a few seconds. Please wait for a moment...done.
[swa]int e0/0/1
[swa-Ethernet0/0/1]port link-type access
[swa-Ethernet0/0/1]port default vlan 101
[swa-Ethernet0/0/1]int e0/0/2
[swa-Ethernet0/0/2]port link-type access
[swa-Ethernet0/0/2]port default vlan 102
[swa-Ethernet0/0/2]quit

SWB

[swb]vlan batch 101 102
Info: This operation may take a few seconds. Please wait for a moment...done.
[swb]int e0/0/1
[swb-Ethernet0/0/1]port link-type access
[swb-Ethernet0/0/1]port default vlan 101
[swb-Ethernet0/0/1]int e0/0/2
[swb-Ethernet0/0/2]port link-type access
[swb-Ethernet0/0/2]port default vlan 102
[swb-Ethernet0/0/2]quit

3、创建Eth-Trunk接口，并将成员加入进来,同时将接口设置为trunk模式，允许vlan101和vlan102通过

SWA

[swa]int Eth-Trunk 1
[swa-Eth-Trunk1]trunkport GigabitEthernet 0/0/1 to 0/0/2
Info: This operation may take a few seconds. Please wait for a moment...done.
[swa-Eth-Trunk1]port link-type trunk
[swa-Eth-Trunk1]port trunk allow-pass vlan 101 102

SWB

[swb]int Eth-Trunk 1
[swb-Eth-Trunk1]trunkport GigabitEthernet 0/0/1 to 0/0/2
Info: This operation may take a few seconds. Please wait for a moment...done.
[swb-Eth-Trunk1]port link-type trunk
[swb-Eth-Trunk1]port trunk allow-pass vlan 101 102

4、配置Eth-Trunk1的负载均衡分担方式

SWA

[swa]int Eth-Trunk 1
[swa-Eth-Trunk1]load-balance src-dst-mac
[swa-Eth-Trunk1]quit
[swa]

SWB

[swb]int Eth-Trunk 1
[swb-Eth-Trunk1]load-balance src-dst-mac
[swb-Eth-Trunk1]quit
[swb]

5、测试

使用PC3 ping 1.1.1.2 -t，然后SWA进入g0/0/1或者g0/0/2接口，shutdown。连通性中断，一段时间后恢复正常。

6、负载分担方式

dst-ip 根据目的IP哈希算法

dst-mac 根据目的地MAC哈希算法

src-dst-ip 根据源/目的IP哈希算法

src-dst-mac 根据源/目标MAC哈希算法

src-ip 根据源IP哈希算法

src-mac 根据源MAC哈希算法

读书和健身总有一个在路上