Lab 1. Switching - Layer 2 Acess Switchports

Objective: Configure layer 2 connectivity between R1 and R2 via SW1 (Switch/Catalyst)

R1#

interface Ethernet0/0

 ip address 12.12.12.1 255.255.255.0

R2#

interface Ethernet0/0

 ip address 12.12.12.1 255.255.255.0

SW1#

SW1(config)#int e0/0

SW1(config-if)#switchport                        ----> by default switch already in switchport mode

SW1(config-if)#switchport mode dynamic desirable

SW1(config-if)#des to-R1

SW1(config-if)#int e0/1

SW1(config-if)#switchport mode access

SW1(config-if)#des to-R2

Verify the switchport in SW1

SW1(config-if)#do sh int status | i Port|Et0/0|Et0/1

Port         Name               Status       Vlan       Duplex  Speed Type

Et0/0        to-R1              connected    1            auto    auto 10BaseTX

Et0/1        to-R2              connected    1            auto    auto 10BaseTX

SW1(config-if)#do sh int e0/0 switchport

Name: Et0/0

Switchport: Enabled

Administrative Mode: dynamic desirable

Operational Mode: static access

Administrative Trunking Encapsulation: negotiate

Operational Trunking Encapsulation: native

...

SW1(config-if)#do sh int e0/1 switchport

Name: Et0/1

Switchport: Enabled

Administrative Mode: static access

Operational Mode: static access

Administrative Trunking Encapsulation: negotiate

Operational Trunking Encapsulation: native

...

Make sure the ping is ok! 

R1#sh ip int brie

Interface                    IP-Address      OK? Method Status            Protocol

Ethernet0/0                12.12.12.1       YES manual   up                    up       

         

R1#ping 12.12.12.2

Type escape sequence to abort.

Sending 5, 100-byte ICMP Echos to 12.12.12.2, timeout is 2 seconds:

!!!!!

Success rate is 100 percent (5/5), round-trip min/avg/max = 1/2/4 ms