Step 2:
The ping should not be successful. You should proceed to troubleshoot the connectivity between SW1 and PC1.
PC1>ping 10.1.10.1
Type escape sequence to abort.
Sending 5, 100byte ICMP Echos to 10.1.10.1, timeout is 2 seconds:
.....
Success rate is 0 percent (0/5)
Step 4:
You should see that the interface status is up/up. This status indicates that the problem is not on the link
between PC1 and SW1.
SW1#show interfaces Ethernet0/1
Ethernet0/1 is up, line protocol is up (connected)
<output omitted>
Step 5:
The interface is in VLAN 10. However, the switch port is inactive, which means that VLAN 10 does not exist on
the switch.
SW1#show interfaces Ethernet0/1 switchport
Name: Et0/1
Switchport: Enabled
Administrative Mode: static access
Operational Mode: static access
Administrative Trunking Encapsulation: negotiate
Operational Trunking Encapsulation: native
Operational Dot1q Ethertype: 0x8100
Negotiation of Trunking: Off
Access Mode VLAN: 10 (Inactive)
Trunking Native Mode VLAN: 1 (default)
Administrative Native VLAN tagging: enabled
<output omitted>
Step 6:
SW1#show vlan
VLAN Name Status Ports
1 default active Et0/0, Et0/2, Et0/3, Et1/2
Et1/3, Et2/0, Et2/1, Et2/2
Et2/3, Et3/0, Et3/1, Et3/2
Et3/3, Et4/0, Et4/1, Et4/2
Et4/3, Et5/0, Et5/1, Et5/2
Et5/3
20 VLAN0020 active
1002 fddidefault act/unsup
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1003 tokenringdefault act/unsup
1004 fddinetdefault act/unsup
1005 trnetdefault act/unsup
<output omitted>
Step 7:
Enter this command on the SW1 switch:
SW1(config)#vlan 10
Step 8:
SW1#show vlan
VLAN Name Status Ports
1 default active Et0/0, Et0/2, Et0/3, Et1/2
Et1/3, Et2/0, Et2/1, Et2/2
Et2/3, Et3/0, Et3/1, Et3/2
Et3/3, Et4/0, Et4/1, Et4/2
Et4/3, Et5/0, Et5/1, Et5/2
Et5/3
10 VLAN0010 active Et0/1
20 VLAN0020 active
1002 fddidefault act/unsup
1003 tokenringdefault act/unsup
1004 fddinetdefault act/unsup
1005 trnetdefault act/unsup
Step 9:
The interface should be in VLAN 10 and should no longer be inactive.
SW1#show interfaces Ethernet0/1 switchport
Name: Et0/1
Switchport: Enabled
Administrative Mode: static access
Operational Mode: static access
Administrative Trunking Encapsulation: negotiate
Operational Trunking Encapsulation: native
Operational Dot1q Ethertype: 0x8100
Negotiation of Trunking: Off
Access Mode VLAN: 10 (VLAN0010)
Trunking Native Mode VLAN: 1 (default)
Administrative Native VLAN tagging: enabled
<output omitted>
Step 10:
This time the ping should be successful.
PC1>ping 10.1.10.1
Type escape sequence to abort.
Sending 5, 100byte ICMP Echos to 10.1.10.1, timeout is 2 seconds:
.!!!!
Success rate is 80 percent (4/5), roundtrip min/avg/max = 1/1/1 ms
Task 2: Troubleshoot Trunk Connectivity Between the Switches
Step 2:
The ping should not be successful. You should proceed to troubleshoot the connectivity between the SW1 and
SW2.
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PC1>ping 10.1.20.100
Type escape sequence to abort.
Sending 5, 100byte ICMP Echos to 10.1.20.100, timeout is 2 seconds:
.....
Success rate is 0 percent (0/5)
Step 4:
You should see that the interface is up. Proceed with troubleshooting the configuration of the trunk between the
switches.
SW1#show interfaces Ethernet1/1
Ethernet1/1 is up, line protocol is up (connected)
<output omitted>
Step 5:
You should see that the interface is in the access mode.
SW1#show interfaces Ethernet1/1 switchport
Name: Et1/1
Switchport: Enabled
Administrative Mode: static access
Operational Mode: static access
Administrative Trunking Encapsulation: dot1q
Operational Trunking Encapsulation: native
Operational Dot1q Ethertype: 0x8100
Negotiation of Trunking: Off
<output omitted>
Step 7:
You should see that the interface is in the trunk mode.
SW2#show interfaces Ethernet1/0 switchport
Name: Et1/0
Switchport: Enabled
Administrative Mode: trunk
Operational Mode: trunk
Administrative Trunking Encapsulation: dot1q
Operational Trunking Encapsulation: dot1q
Operational Dot1q Ethertype: 0x8100
Negotiation of Trunking: On
<output omitted>
Step 8:
Enter these commands on the SW1 switch:
SW1(config)#interface Ethernet1/1
SW1(configif)#switchport mode trunk
Step 9:
You should see that the interface is in now in trunk operational mode.
SW1#show interfaces Ethernet1/1 switchport
Name: Et1/1
Switchport: Enabled
Administrative Mode: trunk
Operational Mode: trunk
Administrative Trunking Encapsulation: dot1q
Operational Trunking Encapsulation: dot1q
Operational Dot1q Ethertype: 0x8100
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Negotiation of Trunking: On
<output omitted>
Step 10:
The ping should be successful.
PC1>ping 10.1.20.100
Type escape sequence to abort.
Sending 5, 100byte ICMP Echos to 10.1.20.100, timeout is 2 seconds:
!!!!!
Success rate is 100 percent (5/5), roundtrip min/avg/max = 1/1/1 ms
Step 11:
Enter this command on the SW1 switch:
SW1#copy runningconfig startupconfig