A1#show run
Building configuration...

Current configuration : 2059 bytes
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version 15.0
no service timestamps log datetime msec
no service timestamps debug datetime msec
no service password-encryption
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hostname A1
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!
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no ip domain-lookup
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!
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spanning-tree mode pvst
spanning-tree extend system-id
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interface Port-channel1
 switchport trunk native vlan 999
 switchport mode trunk
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interface Port-channel2
 switchport trunk native vlan 999
 switchport mode trunk
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interface FastEthernet0/1
 switchport trunk native vlan 999
 switchport mode trunk
 channel-group 1 mode active
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interface FastEthernet0/2
 switchport trunk native vlan 999
 switchport mode trunk
 channel-group 1 mode active
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interface FastEthernet0/3
 switchport trunk native vlan 999
 switchport mode trunk
 channel-group 2 mode active
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interface FastEthernet0/4
 switchport trunk native vlan 999
 switchport mode trunk
 channel-group 2 mode active
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interface FastEthernet0/5
 shutdown
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interface FastEthernet0/6
 shutdown
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interface FastEthernet0/7
 shutdown
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interface FastEthernet0/8
 shutdown
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interface FastEthernet0/9
 shutdown
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interface FastEthernet0/10
 shutdown
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interface FastEthernet0/11
 shutdown
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interface FastEthernet0/12
 shutdown
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interface FastEthernet0/13
 shutdown
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interface FastEthernet0/14
 shutdown
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interface FastEthernet0/15
 shutdown
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interface FastEthernet0/16
 shutdown
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interface FastEthernet0/17
 shutdown
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interface FastEthernet0/18
 shutdown
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interface FastEthernet0/19
 shutdown
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interface FastEthernet0/20
 shutdown
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interface FastEthernet0/21
 shutdown
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interface FastEthernet0/22
 shutdown
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interface FastEthernet0/23
 switchport access vlan 101
 switchport mode access
 switchport port-security violation restrict 
 spanning-tree portfast
 spanning-tree bpduguard enable
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interface FastEthernet0/24
 switchport access vlan 100
 switchport mode access
 switchport port-security violation restrict
 spanning-tree portfast
 spanning-tree bpduguard enable
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interface GigabitEthernet0/1
!
interface GigabitEthernet0/2
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interface Vlan1
 no ip address
 shutdown
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interface Vlan100
 ip address 10.0.100.3 255.255.255.0
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!
!
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line con 0
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line vty 0 4
 login
line vty 5 15
 login
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!
!
!
end

