网络工程 - 重新启动数据包跟踪器后，EtherChannel 端口独立 - 吾爱随笔录

我有两个 L3 交换机（Cisco 3560），no switcport端口连接到 L2 交换机（Cisco 2960）。它曾经可以工作，但是当我保存并重新启动 Packet Tracer 时——所有端口都进入了独立模式。这是端口的配置：

VLAN-40-主（L3）：

interface Port-channel5
 no switchport
 ip address 192.168.100.7 255.255.255.0
!
interface FastEthernet0/1
 no switchport
 no ip address
 channel-group 5 mode active
 duplex auto
 speed auto
!
interface FastEthernet0/2
 no switchport
 no ip address
 channel-group 5 mode active
 duplex auto
 speed auto
!

VLAN-30-主（L3）：

interface Port-channel6
 no switchport
 ip address 192.168.100.6 255.255.255.0
!
interface FastEthernet0/1
 no switchport
 no ip address
 channel-group 6 mode active
 duplex auto
 speed auto
!
interface FastEthernet0/2
 no switchport
 no ip address
 channel-group 6 mode active
 duplex auto
 speed auto
!

上主干 2 (L2)：

interface Port-channel1
 switchport mode trunk

interface Port-channel2
 switchport mode trunk

Group  Port-channel  Protocol    Ports
------+-------------+-----------+----------------------------------------------

1      Po1(SD)           LACP   Fa0/1(I) Fa0/2(I) 
2      Po2(SD)           LACP   Fa0/3(I) Fa0/4(I) 
3      Po3(SU)           LACP   Fa0/5(P) Fa0/6(P)

interface Port-channel5 description Native VLAN no switchport encapsulation dot1Q <VLAN Number N> native ip address 192.168.100.7 255.255.255.0 ! interface Port-channel5.<VLAN Number X> description VLAN <VLAN Number X> encapsulation dot1Q <VLAN Number X> ip address <VLAN X IP address> <VLAN X Mask> ! interface Port-channel5.<VLAN Number Y> description <VLAN Number Y> encapsulation dot1Q <VLAN Number Y> ip address <VLAN Y IP address> <VLAN Y Mask> ! interface FastEthernet0/1 no switchport no ip address channel-group 5 mode active ! interface FastEthernet0/2 no switchport no ip address channel-group 5 mode active !