Lab 7: Configuring VTP Transparent Mode

Lab Objective:

The objective of this lab exercise is for you to learn and understand how to configure VTP Transparent mode on Cisco Catalyst Switches. By default, all Cisco switches are VTP server devices.

Lab Purpose:

VTP Transparent mode configuration is a fundamental skill. VLANs configured on a switch in VTP Transparent mode are not automatically propagated to other switches within the same VTP domain as would be done by a VTP server. Switches configured in VTP Transparent mode use a trunk to forward traffic for configured VLANs to other switches. As a Cisco engineer, as well as in the Cisco CCNA exam, you will be expected to know how to configure VTP Transparent mode.

Certification Level:

This lab is suitable for both CCENT and CCNA certification exam preparation.

Lab Difficulty:

This lab has a difficulty rating of 5/10.

Readiness Assessment:

When you are ready for your certification exam, you should complete this lab in no more than 15 minutes.

Lab Topology:

Please use the following topology to complete this lab exercise:

Task 1:

In preparation for VLAN configuration, configure a hostname on switches 1 and 2 and routers 1 and 3 as illustrated in the topology.

Task 2:

Configure and verify Sw1 and Sw2 in VTP Transparent mode. Both switches should be in the VTP domain named CISCO. Remember that switches must be in the same VTP domain to share VLAN information via a trunk.

Task 3:

Configure and verify FastEthernet0/1 between Sw1 and Sw2 as an 802.1q trunk.

Task 4:

Configure and verify VLANs 2010 and 2030 on Sw1 with the names provided above. Assign FastEthernet0/2 on Sw1 to VLAN2010 as an access port. Configure and verify VLANs 2010 and 2040 on Sw2 with the names provided above. Assign FastEthernet0/2 on Sw2 to VLAN2010 as an access port.

Task 5:

Configure R1 and R3 FastEthernet interfaces with the IP addresses 10.0.0.1/28 and 10.0.0.3/28, respectively. Test VLAN connectivity by pinging between R1 and R3.

Configuration and Verification

Task 1:

Switch#config t 
Enter configuration commands, one per line.  End with CTRL/Z. 
Switch(config)#hostname Sw1 
Sw1(config)# 

Switch#config t 
Enter configuration commands, one per line.  End with CTRL/Z. 
Switch(config)#hostname Sw2 
Sw1(config)# 

Router#config t 
Enter configuration commands, one per line.  End with CTRL/Z. 
Router(config)#hostname R1 
R1(config)# 

Router#config t 
Enter configuration commands, one per line.  End with CTRL/Z. 
Router(config)#hostname R3 
R3(config)#

Task 2:

Sw1#config t 
Enter configuration commands, one per line.  End with CTRL/Z. 
Sw1(config)#vtp mode transparent 
Setting device to VTP TRANSPARENT mode. 
Sw1(config)#end 
Sw1#show vtp status 
VTP Version                     : 2 
Configuration Revision           : 2 
Maximum VLANs supported locally : 250 
Number of existing VLANs        : 5 
VTP Operating Mode              : Transparent 
VTP Domain Name                 : CISCO
VTP Pruning Mode                : Enabled 
VTP V2 Mode                     : Disabled 
VTP Traps Generation            : Disabled 
MD5 digest                      : 0x9D 0x1A 0x9D 0x16 0x9E 0xD1 0x38 0x59 
Configuration last modified by 10.1.1.3 at 3-1-93 01:42:39 

Sw2#config t 
Enter configuration commands, one per line.  End with CTRL/Z. 
Sw2(config)#vtp mode transparent 
Setting device to VTP TRANSPARENT mode. 
Sw2(config)#end 
Sw2#show vtp status 
VTP Version                     : 2 
Configuration Revision           : 2 
Maximum VLANs supported locally : 250 
Number of existing VLANs        : 5 
VTP Operating Mode              : Transparent 
VTP Domain Name                 : CISCO 
VTP Pruning Mode                : Enabled 
VTP V2 Mode                     : Disabled 
VTP Traps Generation            : Disabled 
MD5 digest                      : 0x9D 0x1A 0x9D 0x16 0x9E 0xD1 0x38 0x59 
Configuration last modified by 10.1.1.3 at 3-1-93 01:42:45

Task 3:

NOTE: Some Cisco switches default to 802.1q trunking so no explicit configuration is required. This ISN’T the case for the 2960 Switch, which is used in the exam.

Sw1#config t 
Enter configuration commands, one per line.  End with CTRL/Z. 
Sw1(config)#interface fastethernet0/1 
Sw1(config-if)#switchport mode trunk 

Sw2#config t 
Enter configuration commands, one per line.  End with CTRL/Z. 
Sw2(config)#interface fastethernet0/1 
Sw2(config-if)#switchport mode trunk

Task 4:

Sw1#config t 
Enter configuration commands, one per line.  End with CTRL/Z. 
Sw1(config)#vlan2010 
Sw1(config-vlan)#name SALES 
Sw1(config-vlan)#exit 
Sw1(config)#vlan2030 
Sw1(config-vlan)#name MANAGEMENT 
Sw1(config-vlan)#exit 
Sw1(config)#interface fastethernet0/2 
Sw1(config-if)#switchport mode access 
Sw1(config-if)#switchport access vlan 2010 
Sw1(config-if)#end 
Sw1# 
Sw1#show vlan brief 

VLAN Name                    Status    Ports 
---- ----------------------- --------- ------------------------------- 
1    default                 active    Fa0/1, Fa0/3, Fa0/4 
                                       Fa0/5, Fa0/6, Fa0/7, Fa0/8 
                                       Fa0/9, Fa0/10, Fa0/11, Fa0/12 
                                       Fa0/13, Fa0/14, Fa0/15, Fa0/16 
                                       Fa0/17, Fa0/18, Fa0/19, Fa0/20 
                                       Fa0/21, Fa0/22, Fa0/23, Fa0/24 
                                       Gi0/1, Gi0/2 
1002 fddi-default            active 
1003 token-ring-default      active 
1004 fddinet-default         active 
1005 trnet-default           active 
2010 SALES                   active      Fa0/2 
2030 MANAGEMENT              active 

Sw2#config t Enter configuration commands, one per line.  End with CTRL/Z. Sw2(config)#vlan2010 
Sw2(config-vlan)#name SALES
Sw2(config-vlan)#exit 
Sw2(config)#vlan2040 
Sw2(config-vlan)#name DIRECTORS 
Sw2(config-vlan)#exit 
Sw2(config)#interface fastethernet0/2 
Sw2(config-if)#switchport mode access 
Sw2(config-if)#switchport access vlan2010 
Sw2(config-if)#end 
Sw2# 
Sw2#show vlan brief 

VLAN Name                    Status    Ports 
---- ----------------------- --------- ------------------------------- 
1    default                 active    Fa0/1, Fa0/3, Fa0/4 
                                       Fa0/5, Fa0/6, Fa0/7, Fa0/8 
                                       Fa0/9, Fa0/10, Fa0/11, Fa0/12 
                                       Fa0/13, Fa0/14, Fa0/15, Fa0/16 
                                       Fa0/17, Fa0/18, Fa0/19, Fa0/20 
                                       Fa0/21, Fa0/22, Fa0/23, Fa0/24 
                                       Gi0/1, Gi0/2 
1002 fddi-default            active 
1003 token-ring-default      active 
1004 fddinet-default         active 
1005 trnet-default           active 
2010 SALES                   active      Fa0/2 
2040 DIRECTORS               active

NOTE: Default switches configured for VTP Transparent mode do not exchange VLAN information. You can see in the output above that VLAN2030 on Sw1 is not propagated to Sw2, and VLAN2040 on Sw2 is not propagated to Sw1. In Transparent mode, all VLANs must be manually configured on all switches.

Task 5:

R1#config t 
Enter configuration commands, one per line.  End with CTRL/Z. 
R1(config)#interface  fastethernet0/0
R1(config-if)#ip address 10.0.0.1 255.255.255.240 
R1(config-if)#no shutdown 
R1(config-if)#end 

R3#config t 
Enter configuration commands, one per line.  End with CTRL/Z. 
R3(config)#interface  fastethernet0/0 
R3(config-if)#ip address 10.0.0.3 255.255.255.240 
R3(config-if)#no shutdown 
R3(config-if)#end 

R1#show ip interface brief 
Interface         IP-Address    OK? Method Status            Protocol 
FastEthernet0/0   10.0.0.1      YES manual up                up   

R1#ping 10.0.0.3
Type escape sequence to abort.
 Sending 5, 100-byte ICMP Echos to 10.0.0.3, timeout is 2 seconds:
 .!!!!
 Success rate is 80 percent (4/5), round-trip min/avg/max = 1/3/4 ms

NOTE: The first ping packet times out due to ARP resolution. Subsequent packets will be successful.

R3#show ip interface brief 
Interface         IP-Address      OK? Method Status          Protocol 
FastEthernet0/0   10.0.0.3        YES manual up              up

R3#ping 10.0.0.1 Type escape sequence to abort.
Sending 5, 100-byte ICMP Echos to 10.0.0.1, timeout is 2 seconds:
!!!!!
Success rate is 100 percent (5/5), round-trip min/avg/max = 1/3/4 ms


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