我对这一切都很陌生，但我正在尝试创建一个网络拓扑作为实践，它在三个交换机上使用三个以太通道，然后依靠 STP 阻止一个。到目前为止，它运作良好。但是，当我查看生成树时，我看到虽然以太通道说它正在阻塞，但我正在使用的端口（据我所知不应该显示在生成树中）正在显示并说他们正在转发。这是什么问题，因为我花了几个小时在谷歌上搜索，但找不到解决方案。
另外我不明白为什么我显示 VLAN 0020 和 VLAN 0001 如果是这种情况，我确实有一个计划 20 设置，但你也可以解释一下吗？任何帮助都将成为救命稻草。
P01 应该包含 G0/1 & G0/2
p02 应该包含 Fa0/23 & fa0/24
Switch#show spanning-tree
VLAN0001
Spanning tree enabled protocol ieee
Root ID Priority 32769
Address 0000.0C7D.2383
Cost 3
Port 27(Port-channel1)
Hello Time 2 sec Max Age 20 sec Forward Delay 15 sec
Bridge ID Priority 32769 (priority 32768 sys-id-ext 1)
Address 0001.C7A9.D229
Hello Time 2 sec Max Age 20 sec Forward Delay 15 sec
Aging Time 20
Interface Role Sts Cost Prio.Nbr Type
---------------- ---- --- --------- -------- --------------------------------
Fa0/2 Desg FWD 19 128.2 P2p
Po2 Altn BLK 9 128.28 Shr
Po1 Root FWD 3 128.27 Shr
Fa0/1 Desg FWD 19 128.1 P2p
VLAN0020
Spanning tree enabled protocol ieee
Root ID Priority 32788
Address 0000.0C7D.2383
Cost 3
Port 27(Port-channel1)
Hello Time 2 sec Max Age 20 sec Forward Delay 15 sec
Bridge ID Priority 32788 (priority 32768 sys-id-ext 20)
Address 0001.C7A9.D229
Hello Time 2 sec Max Age 20 sec Forward Delay 15 sec
Aging Time 20
Interface Role Sts Cost Prio.Nbr Type
---------------- ---- --- --------- -------- --------------------------------
Fa0/3 Desg FWD 19 128.3 P2p
Po2 Altn BLK 9 128.28 Shr
Po1 Root FWD 3 128.27 Shr
Switch#
Switch#
Switch#show eth
Switch#show etherchannel su
Switch#show etherchannel summary
Flags: D - down P - in port-channel
I - stand-alone s - suspended
H - Hot-standby (LACP only)
R - Layer3 S - Layer2
U - in use f - failed to allocate aggregator
u - unsuitable for bundling
w - waiting to be aggregated
d - default port
Number of channel-groups in use: 2
Number of aggregators: 2
Group Port-channel Protocol Ports
------+-------------+-----------+----------------------------------------------
1 Po1(SU) LACP Gig0/1(P) Gig0/2(P)
2 Po2(SU) LACP Fa0/23(P) Fa0/24(P)
Switch#
我的交换机配置如下
开关 0：
Switch#show running-config
Building configuration...
Current configuration : 1413 bytes
!
version 15.0
no service timestamps log datetime msec
no service timestamps debug datetime msec
no service password-encryption
!
hostname Switch
!
!
!
!
!
!
spanning-tree mode pvst
spanning-tree extend system-id
!
interface Port-channel1
switchport mode trunk
!
interface Port-channel2
switchport mode trunk
!
interface FastEthernet0/1
!
interface FastEthernet0/2
!
interface FastEthernet0/3
switchport access vlan 20
!
interface FastEthernet0/4
!
interface FastEthernet0/5
!
interface FastEthernet0/6
!
interface FastEthernet0/7
!
interface FastEthernet0/8
!
interface FastEthernet0/9
!
interface FastEthernet0/10
!
interface FastEthernet0/11
!
interface FastEthernet0/12
!
interface FastEthernet0/13
!
interface FastEthernet0/14
!
interface FastEthernet0/15
!
interface FastEthernet0/16
!
interface FastEthernet0/17
!
interface FastEthernet0/18
!
interface FastEthernet0/19
!
interface FastEthernet0/20
!
interface FastEthernet0/21
!
interface FastEthernet0/22
!
interface FastEthernet0/23
switchport mode trunk
channel-group 2 mode active
!
interface FastEthernet0/24
switchport mode trunk
channel-group 2 mode active
!
interface GigabitEthernet0/1
switchport mode trunk
channel-group 1 mode active
!
interface GigabitEthernet0/2
switchport mode trunk
channel-group 1 mode active
!
interface Vlan1
no ip address
shutdown
!
!
!
!
line con 0
!
line vty 0 4
login
line vty 5 15
login
!
!
!
!
end
开关 1：
Switch#show running-config
Building configuration...
Current configuration : 1413 bytes
!
version 15.0
no service timestamps log datetime msec
no service timestamps debug datetime msec
no service password-encryption
!
hostname Switch
!
!
!
!
!
!
spanning-tree mode pvst
spanning-tree extend system-id
!
interface Port-channel2
switchport mode trunk
!
interface Port-channel3
switchport mode trunk
!
interface FastEthernet0/1
!
interface FastEthernet0/2
!
interface FastEthernet0/3
switchport access vlan 20
!
interface FastEthernet0/4
!
interface FastEthernet0/5
!
interface FastEthernet0/6
!
interface FastEthernet0/7
!
interface FastEthernet0/8
!
interface FastEthernet0/9
!
interface FastEthernet0/10
!
interface FastEthernet0/11
!
interface FastEthernet0/12
!
interface FastEthernet0/13
!
interface FastEthernet0/14
!
interface FastEthernet0/15
!
interface FastEthernet0/16
!
interface FastEthernet0/17
!
interface FastEthernet0/18
!
interface FastEthernet0/19
!
interface FastEthernet0/20
!
interface FastEthernet0/21
!
interface FastEthernet0/22
!
interface FastEthernet0/23
switchport mode trunk
channel-group 2 mode active
!
interface FastEthernet0/24
switchport mode trunk
channel-group 2 mode active
!
interface GigabitEthernet0/1
switchport mode trunk
channel-group 3 mode active
!
interface GigabitEthernet0/2
switchport mode trunk
channel-group 3 mode active
!
interface Vlan1
no ip address
shutdown
!
!
!
!
line con 0
!
line vty 0 4
login
line vty 5 15
login
!
!
!
!
end
开关 2：
Switch#show running-config
Building configuration...
Current configuration : 929 bytes
!
version 12.1
no service timestamps log datetime msec
no service timestamps debug datetime msec
no service password-encryption
!
hostname Switch
!
!
!
!
!
!
spanning-tree mode pvst
spanning-tree extend system-id
!
interface Port-channel1
switchport mode trunk
!
interface Port-channel3
switchport mode trunk
!
interface FastEthernet0/1
!
interface FastEthernet1/1
!
interface FastEthernet2/1
!
interface FastEthernet3/1
!
interface FastEthernet4/1
!
interface FastEthernet5/1
!
interface GigabitEthernet6/1
switchport mode trunk
channel-group 1 mode active
!
interface GigabitEthernet7/1
switchport mode trunk
channel-group 1 mode active
!
interface GigabitEthernet8/1
switchport mode trunk
channel-group 3 mode active
!
interface GigabitEthernet9/1
switchport mode trunk
channel-group 3 mode active
!
interface Vlan1
no ip address
shutdown
!
!
!
!
line con 0
!
line vty 0 4
login
line vty 5 15
login
!
!
!
!
end
Switch#
Switch#
我的网络拓扑如下所示
