端口聚合
端口聚合一般使用在交换机与交换机之间,解决交换机大量连接PC机,通过两个物理接口转发数据,只有2个接口,流量会非常大,负载高,还有可能堵塞,这时候就需要交换机把负载大的端口进行多个端口聚合,提高负载,说白了就是两个交换机之间接入多个接口,让交换机以为是一条线
聚合接口的数量,最多支持64个接口聚和
[SW3]int Eth-Trunk ? <0-63> Eth-Trunk interface number
聚合的类型
- 静态端口聚合
- 缺点:无法检测到对方是否配置,一方不配置数据无法发送,单向聚和没有用
- 自己本地配置就显示up了,对端不管
[SW3-Eth-Trunk13]mode manual load-balance
- LACP协商,动态监测,动态端口聚合
添加需要聚合的端口
[SW3-Eth-Trunk13]trunkport g0/0/2
[SW3-Eth-Trunk13]dis eth-trunk 13
Eth-Trunk13's state information is:
WorkingMode: NORMAL Hash arithmetic: According to SIP-XOR-DIP
Least Active-linknumber: 1 Max Bandwidth-affected-linknumber: 8
Operate status: up Number Of Up Port In Trunk: 1
--------------------------------------------------------------------------------
PortName Status Weight
GigabitEthernet0/0/2 Up 1
华为
练习静态端口聚合
把SW3和SW2上的端口进行聚合
SW3
[SW3]int Eth-Trunk 13 [SW3-Eth-Trunk13]mode manual load-balance [SW3-Eth-Trunk13]trunkport g0/0/2 [SW3-Eth-Trunk13]trunkport g0/0/4
[SW3]dis eth-trunk
Eth-Trunk13's state information is:
WorkingMode: NORMAL Hash arithmetic: According to SIP-XOR-DIP
Least Active-linknumber: 1 Max Bandwidth-affected-linknumber: 8
Operate status: up Number Of Up Port In Trunk: 2
--------------------------------------------------------------------------------
PortName Status Weight
GigabitEthernet0/0/2 Up 1
GigabitEthernet0/0/4 Up 1
SW2
[SW2]int Eth-Trunk 13 [SW2-Eth-Trunk13]mode manual load-balance [SW2-Eth-Trunk13]trunkport g0/0/2 [SW2-Eth-Trunk13]trunkport g0/0/4
[SW2-Eth-Trunk13]dis eth-trunk
Eth-Trunk13's state information is:
WorkingMode: NORMAL Hash arithmetic: According to SIP-XOR-DIP
Least Active-linknumber: 1 Max Bandwidth-affected-linknumber: 8
Operate status: up Number Of Up Port In Trunk: 2
--------------------------------------------------------------------------------
PortName Status Weight
GigabitEthernet0/0/2 Up 1
GigabitEthernet0/0/4 Up 1
再次查看stp
[SW2-Eth-Trunk13]dis stp bri MSTID Port Role STP State Protection 0 GigabitEthernet0/0/1 ROOT FORWARDING NONE 0 GigabitEthernet0/0/3 DESI FORWARDING NONE 0 Eth-Trunk13 DESI FORWARDING NONE [SW3]dis stp bri MSTID Port Role STP State Protection 0 GigabitEthernet0/0/1 ROOT FORWARDING NONE 0 GigabitEthernet0/0/3 DESI FORWARDING NONE 0 Eth-Trunk13 ALTE DISCARDING NONE
练习LACP动态链路聚合
[SW3]int Eth-Trunk 13 [SW3-Eth-Trunk13]mode lacp-static [SW3-Eth-Trunk13]trunkport g0/0/2 [SW3-Eth-Trunk13]trunkport g0/0/4
[SW3-Eth-Trunk13]dis eth-trunk
Eth-Trunk13's state information is:
Local:
LAG ID: 13 WorkingMode: STATIC
Preempt Delay: Disabled Hash arithmetic: According to SIP-XOR-DIP
System Priority: 32768 System ID: 4c1f-ccd9-1e52
Least Active-linknumber: 1 Max Active-linknumber: 8
Operate status: down Number Of Up Port In Trunk: 0
--------------------------------------------------------------------------------
ActorPortName Status PortType PortPri PortNo PortKey PortState Weight
GigabitEthernet0/0/2 Unselect 1GE 32768 3 3377 10100010 1
GigabitEthernet0/0/4 Unselect 1GE 32768 5 3377 10100010 1
Partner:
--------------------------------------------------------------------------------
ActorPortName SysPri SystemID PortPri PortNo PortKey PortState
GigabitEthernet0/0/2 0 0000-0000-0000 0 0 0 10100011
GigabitEthernet0/0/4 0 0000-0000-0000 0 0 0 10100011
[SW3]int Eth-Trunk 13 [SW3-Eth-Trunk13]mode lacp-static [SW3-Eth-Trunk13]trunkport g0/0/2 [SW3-Eth-Trunk13]trunkport g0/0/4
[SW2-Eth-Trunk13]dis eth-trunk
Eth-Trunk13's state information is:
Local:
LAG ID: 13 WorkingMode: STATIC
Preempt Delay: Disabled Hash arithmetic: According to SIP-XOR-DIP
System Priority: 32768 System ID: 4c1f-ccaf-6722
Least Active-linknumber: 1 Max Active-linknumber: 8
Operate status: up Number Of Up Port In Trunk: 2
--------------------------------------------------------------------------------
ActorPortName Status PortType PortPri PortNo PortKey PortState Weight
GigabitEthernet0/0/2 Selected 1GE 32768 3 3377 10111100 1
GigabitEthernet0/0/4 Selected 1GE 32768 5 3377 10111100 1
Partner:
--------------------------------------------------------------------------------
ActorPortName SysPri SystemID PortPri PortNo PortKey PortState
GigabitEthernet0/0/2 32768 4c1f-ccd9-1e52 32768 3 3377 10111100
GigabitEthernet0/0/4 32768 4c1f-ccd9-1e52 32768 5 3377 10111100
别忘记了,把eht-trunk 13接口改为trunk接口
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