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端口聚合(两台3650和两台3560)四台设备 channel-group

seasonli72658
Spotlight
Spotlight
SW1和SW2的G1和G2口做端口聚合
SW1和SW3的F21和F22做端口聚合
SW3和SW4的G1和G2口做端口聚合
配置
SW1
interface GigabitEthernet0/1
switchport trunk encapsulation dot1q
switchport mode trunk
channel-group 1 mode desirable
!
interface GigabitEthernet0/2
switchport trunk encapsulation dot1q
switchport mode trunk
channel-group 1 mode desirable
SW2
interface GigabitEthernet0/1
switchport trunk encapsulation dot1q
switchport mode trunk
channel-group 1 mode desirable
!
interface GigabitEthernet0/2
switchport trunk encapsulation dot1q
switchport mode trunk
channel-group 1 mode desirable
SW3
interface GigabitEthernet0/1
channel-group 3 mode desirable
!
interface GigabitEthernet0/2
channel-group 3 mode desirable
!
SW4
interface GigabitEthernet0/1
channel-group 3 mode desirable
!
interface GigabitEthernet0/2
channel-group 3 mode desirable
我在SW4上配置trunk就会报错

Command rejected: An interface whose trunk encapsulation is "Auto" can not be configured to "trunk" mode.
Command rejected: An interface whose trunk encapsulation is "Auto" can not be configured to "trunk" mode.
如果我先封装成DOT1q在配置trunk的话就会报另一个错

%EC-5-CANNOT_BUNDLE2: Gig0/1 is not compatible with Po3 and will be suspended (dtp mode of Gig0/1 is on, Po3is off )
%EC-5-CANNOT_BUNDLE2: Gig0/2 is not compatible with Po3 and will be suspended (dtp mode of Gig0/2 is on, Po3is off )
%LINK-5-CHANGED: Interface Port-channel 3, changed state to up
%LINEPROTO-5-UPDOWN: Line protocol on Interface Port-channel 3, changed state to up
这是什么问题呢, 如果不我配置trunk在sw4的G1和G2口会有什么影响呢,哪个专家帮忙分析一下,最好详细一点,谢谢。
还有以上这么做端口聚合可以吗
4 条回复4

Steven2016
Level 1
Level 1
要么两端端口都配置成ACCESS模式,要么两端端口都配置称TRUNK模式

seasonli72658
Spotlight
Spotlight
Steven2016 发表于 2019-5-22 14:55
要么两端端口都配置成ACCESS模式,要么两端端口都配置称TRUNK模式

这四台设备做聚合会有问题吗

Steven2016
Level 1
Level 1
问题应该是没有的,拓扑图应该就是SW4-SW3-SW1-SW2

seasonli72658
Spotlight
Spotlight
Steven2016 发表于 2019-5-23 21:39
问题应该是没有的,拓扑图应该就是SW4-SW3-SW1-SW2

好的谢谢 如果有问题在来问你
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