Switch two-layer EtherChannel configuration case

A topological diagram

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Two-Configuration process

Configuration of the SwitchA:

switch>en

Switch#config

Switch (config) #

Switch (config) #interface range fa0/1-3

Switch (Config-if-range) #channel-group 1 mode active

Switch (Config-if-range) #interface Port-channel 1

Switch (config-if) #switchport mode trunk

Switch (config-if) #switchport Trunk native VLAN 99

Switch (config-if) #switchport trunk allowed VLAN 1,10,20,99

Switch (config-if) #exit

Switch (config) #vlan 10

Switch (Config-vlan) #vlan 20

Switch (Config-vlan) #exit

Switch (config) #interface FA0/4

Switch (config-if) #switchport mode access

Switch (config-if) #switchport Access VLAN 10

Switch (config-if) #interface FA0/5

Switch (config-if) #switchport mode access

Switch (config-if) #switchport Access VLAN 20

Switch (config-if) #do show Running-config

Switch (config-if) # do show EtherChannel summary

Configuration of the SwitchB:

switch>en

Switch#config

Switch (config) #

Switch (config) #interface range fa0/1-3

Switch (Config-if-range) #channel-group 1 mode active

Switch (Config-if-range) #interface Port-channel 1 (Note: 1 here can differ from 1 in SwitchA)

Switch (config-if) #switchport mode trunk

Switch (config-if) #switchport trunk native VLAN 99 (note: 99 in here must be 99-phase in SwitchA The same, of course for other VLANs)

Switch (config-if) #switchport trunk allowed VLAN 1,10,20,99

Switch (config-if) #exit

Switch (config) #vlan 10

Switch (Config-vlan) #vlan 20

Switch (Config-vlan) #exit

Switch (config) #interface FA0/4

Switch (config-if) #switchport mode access

Switch (config-if) #switchport Access VLAN 10

Switch (config-if) #interface FA0/5

Switch (config-if) #switchport mode access

Switch (config-if) #switchport Access VLAN 20

Switch (config-if) #do show Running-config

Switch (config-if) # do show EtherChannel summary

Three Save and Reload commands
Switch#write

Switch#reload

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Switch two-layer EtherChannel configuration case