HƯỚNG DẪN LAB

LAB 11 – VTP
Designed by : Nguyễn Phú Thịnh

Sơ đồ LAB :
Yêu cầu
• Đấu nối và đặt tên thiết bị như sơ đồ
• Cấu hình trunk cho các kết nối giữa các switch
• Cấu hình VTP như sơ đồ
Thiết bị VTP Domain VTP Password Vai trò
SW1 newstar cisco VTP Server
SW2 newstar cisco VTP Server
SW3 newstar cisco VTP Transparent
SW4 newstar cisco VTP Client
SW5 newstar cisco VTP Client
SW6 newstar cisco VTP Client
SW7 newstar newstar VTP Client

• Thử tạo/sửa/xóa vlan trên các switch và quan sát ảnh hưởng của VTP

Các bước thực hiện

Bước 1: Đấu nối và đổi tên thiết bị như sơ đồ.
Bước 2: Cấu hình trunk trên các switch

SW1
SW1(config)#interface range F0/1-2
SW1(config-if-range)#switchport mode trunk

Kiểm tra :
SW1#show interfaces trunk
Port Mode Encapsulation Status Native vlan
Fa0/1 on 802.1q trunking 1
Fa0/2 on 802.1q trunking 1

Port Vlans allowed on trunk

Fa0/1 1-1005
Fa0/2 1-1005

Port Vlans allowed and active in management domain

Fa0/1 1
Fa0/2 1

Port Vlans in spanning tree forwarding state and not pruned

Fa0/1 none
Fa0/2 none

SW2
SW2(config)#interface range F0/1-3
SW2(config-if-range)#switchport mode trunk

Kiểm tra:
SW2#show interfaces trunk
Port Mode Encapsulation Status Native vlan
Fa0/1 on 802.1q trunking 1
Fa0/2 on 802.1q trunking 1
Fa0/3 on 802.1q trunking 1

Port Vlans allowed on trunk

Fa0/1 1-1005
Fa0/2 1-1005
Fa0/3 1-1005

Port Vlans allowed and active in management domain

Fa0/1 1
Fa0/2 1
Fa0/3 1

Port Vlans in spanning tree forwarding state and not pruned

Fa0/1 1
Fa0/2 none
Fa0/3 none

SW3
SW3(config)#interface range F0/1-2
SW3(config-if-range)#switchport mode trunk

Kiểm tra:
SW3#show interfaces trunk
Port Mode Encapsulation Status Native vlan
Fa0/1 on 802.1q trunking 1
Fa0/2 on 802.1q trunking 1

Port Vlans allowed on trunk

Fa0/1 1-1005
Fa0/2 1-1005

Port Vlans allowed and active in management domain

Fa0/1 1
Fa0/2 1

Port Vlans in spanning tree forwarding state and not pruned

Fa0/1 1
Fa0/2 none

SW4
SW4(config)#interface F0/1
SW4(config-if)#switchport mode trunk

Kiểm tra:
SW4#show interfaces trunk
Port Mode Encapsulation Status Native vlan
Fa0/1 on 802.1q trunking 1

Port Vlans allowed on trunk

Fa0/1 1-1005

Port Vlans allowed and active in management domain

Fa0/1 1

Port Vlans in spanning tree forwarding state and not pruned

Fa0/1 1
 SW5
SW5(config)#interface range F0/1-2
SW5(config-if-range)#switchport mode trunk

Kiểm tra:
SW5#show interfaces trunk
Port Mode Encapsulation Status Native vlan
Fa0/1 on 802.1q trunking 1
Fa0/2 on 802.1q trunking 1

Port Vlans allowed on trunk

Fa0/1 1-1005
Fa0/2 1-1005

Port Vlans allowed and active in management domain

Fa0/1 1
Fa0/2 1

Port Vlans in spanning tree forwarding state and not pruned

Fa0/1 1
Fa0/2 none

SW6
SW6(config)#interface F0/1
SW6(config-if)#switchport mode trunk

Kiểm tra:
SW6#show interfaces trunk
Port Mode Encapsulation Status Native vlan
Fa0/1 on 802.1q trunking 1

Port Vlans allowed on trunk

Fa0/1 1-1005

Port Vlans allowed and active in management domain

Fa0/1 1

Port Vlans in spanning tree forwarding state and not pruned

Fa0/1 1

SW7
SW7(config)#interface F0/1
SW7(config-if)#switchport mode trunk

Kiểm tra:
SW7#show interfaces trunk
Port Mode Encapsulation Status Native vlan
Fa0/1 on 802.1q trunking 1

Port Vlans allowed on trunk

Fa0/1 1-1005

Port Vlans allowed and active in management domain

Fa0/1 1

Port Vlans in spanning tree forwarding state and not pruned

Fa0/1 1
Bước 3 : Cấu hình VTP cho các switch

Cấu hình gồm 3 bước :

• Xác định VTP Domain
• Xác định VTP Password
• Xác định vai trò của Switch (là server, client hay transparent)
Có thể kiểm tra cấu hình bằng 2 lệnh :
• show vtp status
o Configuration Revision : Revision number
o VTP Operating Mode : vai trò của Switch
o VTP Domain Name : VTP Domain
o MD5 Digest : VTP password đã bị mã hóa
• show vtp password : xem VTP password không mã hóa
SW1
SW1(config)#vtp domain newstar
SW1(config)#vtp password cisco
SW1(config)#vtp mode server

Kiểm tra:
SW1#show vtp status
VTP Version : 2
Configuration Revision : 0
Maximum VLANs supported locally : 255
Number of existing VLANs : 5
VTP Operating Mode : Server
VTP Domain Name : newstar
VTP Pruning Mode : Disabled
VTP V2 Mode : Disabled
VTP Traps Generation : Disabled
MD5 digest : 0x83 0xA8 0xC4 0x33 0x3C 0x94 0x28 0x0B
Configuration last modified by 0.0.0.0 at 0-0-00 00:00:00
Local updater ID is 0.0.0.0 (no valid interface found)

SW1#show vtp password

VTP Password: cisco

SW2
SW2(config)#vtp domain newstar
SW2(config)#vtp password cisco
SW2(config)#vtp mode server

Kiểm tra:
SW2#show vtp status
VTP Version : 2
Configuration Revision : 0
Maximum VLANs supported locally : 255
Number of existing VLANs : 5
VTP Operating Mode : Server
VTP Domain Name : newstar
VTP Pruning Mode : Disabled
VTP V2 Mode : Disabled
VTP Traps Generation : Disabled
MD5 digest : 0x83 0xA8 0xC4 0x33 0x3C 0x94 0x28 0x0B
Configuration last modified by 0.0.0.0 at 0-0-00 00:00:00
Local updater ID is 0.0.0.0 (no valid interface found)

SW2#show vtp password

VTP Password: cisco

SW3
SW3(config)#vtp domain newstar
SW3(config)#vtp password cisco
SW3(config)#vtp mode transparent

Kiểm tra:
SW3#show vtp status
VTP Version : 2
Configuration Revision : 0
Maximum VLANs supported locally : 255
Number of existing VLANs : 5
VTP Operating Mode : Transparent
VTP Domain Name : newstar
VTP Pruning Mode : Disabled
VTP V2 Mode : Disabled
VTP Traps Generation : Disabled
MD5 digest : 0x83 0xA8 0xC4 0x33 0x3C 0x94 0x28 0x0B
Configuration last modified by 0.0.0.0 at 0-0-00 00:00:00

SW3#show vtp password

VTP Password: cisco

SW4
SW4(config)#vtp domain newstar
SW4(config)#vtp password cisco
SW4(config)#vtp mode client

Kiểm tra:
SW4#show vtp status
VTP Version : 2
Configuration Revision : 0
Maximum VLANs supported locally : 255
Number of existing VLANs : 5
VTP Operating Mode : Client
VTP Domain Name : newstar
VTP Pruning Mode : Disabled
VTP V2 Mode : Disabled
VTP Traps Generation : Disabled
MD5 digest : 0x83 0xA8 0xC4 0x33 0x3C 0x94 0x28 0x0B
Configuration last modified by 0.0.0.0 at 0-0-00 00:00:00

SW4#show vtp password

VTP Password: cisco

SW5
SW5(config)#vtp domain newstar
SW5(config)#vtp password cisco
SW5(config)#vtp mode client

Kiểm tra:
SW5#show vtp status
VTP Version : 2
Configuration Revision : 0
Maximum VLANs supported locally : 255
Number of existing VLANs : 5
VTP Operating Mode : Client
VTP Domain Name : newstar
VTP Pruning Mode : Disabled
VTP V2 Mode : Disabled
VTP Traps Generation : Disabled
MD5 digest : 0x83 0xA8 0xC4 0x33 0x3C 0x94 0x28 0x0B
Configuration last modified by 0.0.0.0 at 0-0-00 00:00:00

SW5#show vtp password

VTP Password: cisco

SW6
SW6(config)#vtp domain newstar
SW6(config)#vtp password cisco
SW6(config)#vtp mode client

Kiểm tra:
SW6#show vtp status
VTP Version : 2
Configuration Revision : 0
Maximum VLANs supported locally : 255
Number of existing VLANs : 5
VTP Operating Mode : Client
VTP Domain Name : newstar
VTP Pruning Mode : Disabled
VTP V2 Mode : Disabled
VTP Traps Generation : Disabled
MD5 digest : 0x83 0xA8 0xC4 0x33 0x3C 0x94 0x28 0x0B
Configuration last modified by 0.0.0.0 at 0-0-00 00:00:00

SW6#show vtp password

VTP Password: cisco

SW7
SW7(config)#vtp domain newstar
SW7(config)#vtp password newstar
SW7(config)#vtp mode client

Kiểm tra
SW7#show vtp status
VTP Version : 2
Configuration Revision : 0
Maximum VLANs supported locally : 255
Number of existing VLANs : 5
VTP Operating Mode : Client
VTP Domain Name : newstar
VTP Pruning Mode : Disabled
VTP V2 Mode : Disabled
VTP Traps Generation : Disabled
MD5 digest : 0xA4 0xC8 0x48 0x9F 0x87 0x33 0xE0 0x22

SW7#show vtp password

VTP Password: newstar
Bước 4 : Tạo VLAN trên SW1 (VTP Server) và quan sát sự thay đổi trên các switch còn lại

SW1
SW1(config)#vlan 10
SW1(config-vlan)#exit
SW1(config)#vlan 20
SW1(config-vlan)#exit

Kiểm tra:
SW1#show vlan brief

VLAN Name Status Ports

---- -------------------------------- --------- -------------------------------
1 default active 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, Gig0/1, Gig0/2
10 VLAN0010 active
20 VLAN0020 active
1002 fddi-default active
1003 token-ring-default active
1004 fddinet-default active
1005 trnet-default active

SW2
SW2#show vlan brief

VLAN Name Status Ports

---- -------------------------------- --------- -------------------------------
1 default active 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, Gig0/1, Gig0/2
10 VLAN0010 active
20 VLAN0020 active
1002 fddi-default active
1003 token-ring-default active
1004 fddinet-default active
1005 trnet-default active

SW3
SW3#show vlan brief

VLAN Name Status Ports

---- -------------------------------- --------- -------------------------------
1 default active 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, Gig0/1, Gig0/2
1002 fddi-default active
1003 token-ring-default active
1004 fddinet-default active
1005 trnet-default active

SW4
SW4#show vlan brief

VLAN Name Status Ports

---- -------------------------------- --------- -------------------------------
1 default active Fa0/2, 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, Gig0/1
Gig0/2
10 VLAN0010 active
20 VLAN0020 active
1002 fddi-default active
1003 token-ring-default active
1004 fddinet-default active
1005 trnet-default active

SW5
SW5#show vlan brief

VLAN Name Status Ports

---- -------------------------------- --------- -------------------------------
1 default active 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, Gig0/1, Gig0/2
10 VLAN0010 active
20 VLAN0020 active
1002 fddi-default active
1003 token-ring-default active
1004 fddinet-default active
1005 trnet-default active

SW6
SW6#show vlan brief

VLAN Name Status Ports

---- -------------------------------- --------- -------------------------------
1 default active Fa0/2, 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, Gig0/1
Gig0/2
10 VLAN0010 active
20 VLAN0020 active
1002 fddi-default active
1003 token-ring-default active
1004 fddinet-default active
1005 trnet-default active
 SW7
SW7#show vlan brief

VLAN Name Status Ports

---- -------------------------------- --------- -------------------------------
1 default active Fa0/2, 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, Gig0/1
Gig0/2
1002 fddi-default active
1003 token-ring-default active
1004 fddinet-default active
1005 trnet-default active

Từ các output trên, có thể thấy :

• SW2 có VLAN 10 và VLAN 20, chứng tỏ VTP Server đồng bộ thông tin VLAN từ gói tin VTA.
• SW3 không có VLAN 10 và 20, chứng tỏ VTP Transparent không đồng bộ thông tin VLAN từ VTA.
• SW4 có VLAN 10 và 20, chứng tỏ
o VTP Transparent (là SW3) trung chuyển VTA
o VTP Client đồng bộ thông tin VLAN từ VTA
• SW5 có VLAN 10 và 20, chứng tỏ
o VTP Server (là SW2) trung chuyển VTA
o VTP Client đồng bộ thông tin VLAN từ VTA
• SW6 có VLAN 10 và 20, chứng tỏ
o VTP Client (là SW5) trung chuyển VTA
o VTP Client đồng bộ thông tin VLAN từ VTA
• SW7 không có VLAN 10 và 20, chứng tỏ
o VTP password giữa SW2 và SW7 không khớp, nên SW2 không gửi VTA cho SW7

Bước 5: Tạo vlan trên SW3 (VTP Transparent) và quan sát sự thay đổi trên các switch còn
lại

SW3
SW3(config)#vlan 30
SW3(config-vlan)#exit

Kiểm tra
SW3#show vlan brief

VLAN Name Status Ports

---- -------------------------------- --------- -------------------------------
1 default active 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, Gig0/1, Gig0/2
30 VLAN0030 active
1002 fddi-default active
1003 token-ring-default active
1004 fddinet-default active
1005 trnet-default active

SW1
SW1#show vlan brief

VLAN Name Status Ports

---- -------------------------------- --------- -------------------------------
1 default active 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, Gig0/1, Gig0/2
10 VLAN0010 active
20 VLAN0020 active
1002 fddi-default active
1003 token-ring-default active
1004 fddinet-default active
1005 trnet-default active

SW2
SW2#show vlan brief

VLAN Name Status Ports

---- -------------------------------- --------- -------------------------------
1 default active 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, Gig0/1, Gig0/2
10 VLAN0010 active
20 VLAN0020 active
1002 fddi-default active
1003 token-ring-default active
1004 fddinet-default active
1005 trnet-default active

SW4
SW4#show vlan brief

VLAN Name Status Ports

---- -------------------------------- --------- -------------------------------
1 default active Fa0/2, 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, Gig0/1
Gig0/2
10 VLAN0010 active
20 VLAN0020 active
1002 fddi-default active
1003 token-ring-default active
1004 fddinet-default active
1005 trnet-default active
 SW5
SW5#show vlan brief

VLAN Name Status Ports

---- -------------------------------- --------- -------------------------------
1 default active 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, Gig0/1, Gig0/2
10 VLAN0010 active
20 VLAN0020 active
1002 fddi-default active
1003 token-ring-default active
1004 fddinet-default active
1005 trnet-default active

SW6
SW6#show vlan brief

VLAN Name Status Ports

---- -------------------------------- --------- -------------------------------
1 default active Fa0/2, 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, Gig0/1
Gig0/2
10 VLAN0010 active
20 VLAN0020 active
1002 fddi-default active
1003 token-ring-default active
1004 fddinet-default active
1005 trnet-default active

Từ các output, có thể thấy :

• Các switch còn lại không hề có VLAN 30, chứng tỏ VTP Transparent không đồng bộ thông tin VLAN
cho các switch khác.

Bước 6 : Tạo vlan trên SW4 (VTP Client) và quan sát sự thay đổi

SW4
SW4(config)#vlan 40
VTP VLAN configuration not allowed when device is in CLIENT mode.

Log cho thấy SW4 không được phép tạo VLAN khi đang là VTP CLIENT.
Kiểm tra:
SW4
SW4#show vlan brief

VLAN Name Status Ports

---- -------------------------------- --------- -------------------------------
 1 default active Fa0/2, 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, Gig0/1
Gig0/2
10 VLAN0010 active
20 VLAN0020 active
1002 fddi-default active
1003 token-ring-default active
1004 fddinet-default active
1005 trnet-default active

Output không hề có VLAN 40.

Bước 7: xóa vlan 10 trên SW2 (VTP Server) và quan sát sự thay đổi trên các switch còn lại

SW2
SW2(config)#no vlan 10

Kiểm tra:
SW2#show vlan brief

VLAN Name Status Ports

---- -------------------------------- --------- -------------------------------
1 default active 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, Gig0/1, Gig0/2
20 VLAN0020 active
1002 fddi-default active
1003 token-ring-default active
1004 fddinet-default active
1005 trnet-default active

SW1
SW1#show vlan brief

VLAN Name Status Ports

---- -------------------------------- --------- -------------------------------
1 default active 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, Gig0/1, Gig0/2
20 VLAN0020 active
1002 fddi-default active
1003 token-ring-default active
1004 fddinet-default active
1005 trnet-default active

SW1#show vtp status

VTP Version : 2
Configuration Revision : 5
Maximum VLANs supported locally : 255
Number of existing VLANs : 6
VTP Operating Mode : Server
VTP Domain Name : newstar
VTP Pruning Mode : Disabled
VTP V2 Mode : Disabled
VTP Traps Generation : Disabled
MD5 digest : 0x43 0xEC 0xAB 0xCA 0x2B 0x03 0x4A 0xDE
Configuration last modified by 0.0.0.0 at 3-1-93 01:03:49
Local updater ID is 0.0.0.0 (no valid interface found)

SW3
SW2#show vlan brief

VLAN Name Status Ports

---- -------------------------------- --------- -------------------------------
1 default active 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, Gig0/1, Gig0/2
40 VLAN0040 active
1002 fddi-default active
1003 token-ring-default active
1004 fddinet-default active
1005 trnet-default active

SW3#show vtp status

VTP Version : 2
Configuration Revision : 0
Maximum VLANs supported locally : 255
Number of existing VLANs : 6
VTP Operating Mode : Transparent
VTP Domain Name : newstar
VTP Pruning Mode : Disabled
VTP V2 Mode : Disabled
VTP Traps Generation : Disabled
MD5 digest : 0x83 0xA8 0xC4 0x33 0x3C 0x94 0x28 0x0B
Configuration last modified by 0.0.0.0 at 3-1-93 01:03:49
Local updater ID is 0.0.0.0 (no valid interface found)

SW4
SW4#show vlan brief

VLAN Name Status Ports

---- -------------------------------- --------- -------------------------------
1 default active Fa0/2, 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, Gig0/1
Gig0/2
20 VLAN0020 active
1002 fddi-default active
1003 token-ring-default active
1004 fddinet-default active
1005 trnet-default active
SW4#show vtp status
VTP Version : 2
Configuration Revision : 5
Maximum VLANs supported locally : 255
Number of existing VLANs : 6
VTP Operating Mode : Client
VTP Domain Name : newstar
VTP Pruning Mode : Disabled
VTP V2 Mode : Disabled
VTP Traps Generation : Disabled
MD5 digest : 0x43 0xEC 0xAB 0xCA 0x2B 0x03 0x4A 0xDE
Configuration last modified by 0.0.0.0 at 3-1-93 01:03:49

SW5
SW5#show vlan brief

VLAN Name Status Ports

---- -------------------------------- --------- -------------------------------
1 default active 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, Gig0/1, Gig0/2
20 VLAN0020 active
1002 fddi-default active
1003 token-ring-default active
1004 fddinet-default active
1005 trnet-default active

SW5#show vtp status

VTP Version : 2
Configuration Revision : 5
Maximum VLANs supported locally : 255
Number of existing VLANs : 6
VTP Operating Mode : Client
VTP Domain Name : newstar
VTP Pruning Mode : Disabled
VTP V2 Mode : Disabled
VTP Traps Generation : Disabled
MD5 digest : 0x43 0xEC 0xAB 0xCA 0x2B 0x03 0x4A 0xDE
Configuration last modified by 0.0.0.0 at 3-1-93 01:03:49

SW6
SW6#show vlan brief

VLAN Name Status Ports

---- -------------------------------- --------- -------------------------------
1 default active Fa0/2, 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, Gig0/1
Gig0/2
20 VLAN0020 active
1002 fddi-default active
1003 token-ring-default active
1004 fddinet-default active
1005 trnet-default active
 SW6#show vtp status
VTP Version : 2
Configuration Revision : 5
Maximum VLANs supported locally : 255
Number of existing VLANs : 6
VTP Operating Mode : Client
VTP Domain Name : newstar
VTP Pruning Mode : Disabled
VTP V2 Mode : Disabled
VTP Traps Generation : Disabled
MD5 digest : 0x43 0xEC 0xAB 0xCA 0x2B 0x03 0x4A 0xDE
Configuration last modified by 0.0.0.0 at 3-1-93 01:03:49

Từ các output có thể thấy :

• Số revision tăng lên
• VLAN 20 đã được xóa khỏi tất cả các switch (trừ SW3 là VTP Transparent)

Kết luận

VTP Server VTP Client VTP Transparent

✔
Khả năng tạo/sửa/xóa VLAN ✔
(chỉ local)
Đồng bộ thông tin VLAN ✔ ✔
Chuyển tiếp VTA ✔ ✔ ✔