端口聚合

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2020年12月7日12:59:09 评论 3816字阅读12分43秒

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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  • 文本由 发表于 2020年12月7日12:59:09
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