Cisco Interface Konfiguration

Interface Status

• c3750#show interfaces status

Port      Name               Status       Vlan       Duplex  Speed Type
Fa1/0/1                      notconnect   1            auto   auto 10/100BaseTX
Fa1/0/2                      notconnect   1            auto   auto 10/100BaseTX
Fa1/0/3                      connected    1          a-full  a-100 10/100BaseTX
Fa1/0/4                      notconnect   1            auto   auto 10/100BaseTX
...
Gi1/0/1                      notconnect   1            auto   auto Not Present
Gi1/0/2                      notconnect   1            auto   auto Not Present
Gi1/0/3                      notconnect   1            auto   auto Not Present
Gi1/0/4                      notconnect   1            auto   auto Not Present

Speed ändern

• c3750#configure terminal
• c3750(config)#interface fa1/0/3
• c3750(config-if)#speed 10

Jan 28 13:07:46.067: %LINEPROTO-5-UPDOWN: Line protocol on Interface FastEthernet1/0/3, changed state to down

• c3750(config-if)#

Jan 28 13:07:48.072: %LINEPROTO-5-UPDOWN: Line protocol on Interface FastEthernet1/0/3, changed state to up

• c3750(config-if)#do show interface status

Port      Name               Status       Vlan       Duplex  Speed Type
Fa1/0/1                      notconnect   1            auto   auto 10/100BaseTX
Fa1/0/2                      notconnect   1            auto   auto 10/100BaseTX
Fa1/0/3                      connected    1          a-full     10 10/100BaseTX

Duplex ändern

• c3750(config-if)#duplex ?

 auto  Enable AUTO duplex configuration
 full  Force full duplex operation
 half  Force half-duplex operation

• c3750(config-if)#duplex half

Jan 28 13:09:40.101: %LINEPROTO-5-UPDOWN: Line protocol on Interface FastEthernet1/0/3, changed state to down
Jan 28 13:09:41.100: %LINK-3-UPDOWN: Interface FastEthernet1/0/3, changed state to down

• c3750(config-if)#do show interface status

Port      Name               Status       Vlan       Duplex  Speed Type
Fa1/0/1                      notconnect   1            auto   auto 10/100BaseTX
Fa1/0/2                      notconnect   1            auto   auto 10/100BaseTX
Fa1/0/3                      connected    1            half     10 10/100BaseTX

Wieder zurück

• c3750(config-if)#duplex auto
• c3750(config-if)#speed 100

Interface Range

• c3750(config)#interface range Fa1/0/5-10
• c3750(config-if-range)#speed 10
• c3750(config-if-range)#do show interface status

Port      Name               Status       Vlan       Duplex  Speed Type
Fa1/0/1                      notconnect   1            auto   auto 10/100BaseTX
Fa1/0/2                      notconnect   1            auto   auto 10/100BaseTX
Fa1/0/3                      connected    1          a-full    100 10/100BaseTX
Fa1/0/4                      notconnect   1            auto   auto 10/100BaseTX
Fa1/0/5                      notconnect   1            auto     10 10/100BaseTX
Fa1/0/6                      notconnect   1            auto     10 10/100BaseTX
Fa1/0/7                      notconnect   1            auto     10 10/100BaseTX
Fa1/0/8                      notconnect   1            auto     10 10/100BaseTX
Fa1/0/9                      notconnect   1            auto     10 10/100BaseTX
Fa1/0/10                     notconnect   1            auto     10 10/100BaseTX
Fa1/0/11                     connected    1          a-full  a-100 10/100BaseTX
Fa1/0/12                     notconnect   1            auto   auto 10/100BaseTX

Interfaces deaktivieren

• c3750#configure terminal
• c3750(config)#interface range Fa1/0/10-48
• c3750(config-if-range)#shutdown

Interface aktivieren

• c3750#configure terminal
• c3750(config)#interface fa1/0/10
• c3750(config-if)#no shutdown