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Packet Tracer LAB(VTP)

i am working on Packet Tracer on VTP.. But it is not working properly.. VTP client was not receiving the VLAN updates from server switch...  please tell me any one facing the same problem on packet tracer.. Sample simple config below for two swithces..

SWITCH 1

sh vtp status

VTP Version                     : 2

Configuration Revision          : 1

Maximum VLANs supported locally : 255

Number of existing VLANs        : 6

VTP Operating Mode              : Server

VTP Domain Name                 : CCNP

VTP Pruning Mode                : Disabled

VTP V2 Mode                     : Disabled

VTP Traps Generation            : Disabled

MD5 digest                      : 0x69 0xEA 0x7A 0x35 0x7A 0xD8 0x1D 0xD5

Configuration last modified by 0.0.0.0 at 3-1-93 00:01:23

Local updater ID is 0.0.0.0 (no valid interface found)

sh vlan brief

VLAN Name                             Status    Ports

---- -------------------------------- --------- -------------------------------

1    default                          active    Fa0/1, 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

                                                Gig1/1, Gig1/2

10   VLAN0010                         active   

1002 fddi-default                     active   

1003 token-ring-default               active   

1004 fddinet-default                  active   

1005 trnet-default                    active

Switch 2

h 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                 : CCNP

VTP Pruning Mode                : Disabled

VTP V2 Mode                     : Disabled

VTP Traps Generation            : Disabled

MD5 digest                      : 0x1B 0xA3 0x02 0x27 0xF9 0x0D 0x27 0xF1

Configuration last modified by 0.0.0.0 at 0-0-00 00:00:00

sh vlan brief

VLAN Name                             Status    Ports

---- -------------------------------- --------- -------------------------------

1    default                          active    Fa0/1, 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

                                                Gig1/1, Gig1/2

1002 fddi-default                     active   

1003 token-ring-default               active   

1004 fddinet-default                  active   

1005 trnet-default                    active   

1 ACCEPTED SOLUTION

Accepted Solutions
New Member

Packet Tracer LAB(VTP)

You must use trunk ports in order to get VTP going.

interface fa0/1

switchport trunk encapsulation dot1q

swithport mode trunk

end

It could be that after you configure these trunk ports, no vtp updates are getting through. Create a dummy vlan on the VTP master switch to see if it works.

vlan 999

name dummy-vlan

exit

4 REPLIES
VIP Super Bronze

Packet Tracer LAB(VTP)

Can you post the config for the interface connecting the 2 switches together?

Also, are you using the same VTP password for both switches?

can you post sh run and sh ip int bri from both switches?

HTH

Packet Tracer LAB(VTP)

Switch 1

SW1#sh running-config

Building configuration...

Current configuration : 1034 bytes

!

version 12.2

no service timestamps log datetime msec

no service timestamps debug datetime msec

no service password-encryption

!

hostname SW1

!

!

!

!

spanning-tree mode pvst

!

interface FastEthernet0/1

!

interface FastEthernet0/2

!

interface FastEthernet0/3

!

interface FastEthernet0/4

!

interface FastEthernet0/5

!

interface FastEthernet0/6

!

interface FastEthernet0/7

!

interface FastEthernet0/8

!

interface FastEthernet0/9

!

interface FastEthernet0/10

!

interface FastEthernet0/11

!

interface FastEthernet0/12

!

interface FastEthernet0/13

!

interface FastEthernet0/14

!

interface FastEthernet0/15

!

interface FastEthernet0/16

!

interface FastEthernet0/17

!

interface FastEthernet0/18

!

interface FastEthernet0/19

!

interface FastEthernet0/20

!

interface FastEthernet0/21

!

interface FastEthernet0/22

!

interface FastEthernet0/23

!

interface FastEthernet0/24

!

interface GigabitEthernet1/1

!

interface GigabitEthernet1/2

!

interface Vlan1

no ip address

shutdown

!

!

line con 0

!

line vty 0 4

login

line vty 5 15

login

!

!

end

SW1#conf t

Enter configuration commands, one per line.  End with CNTL/Z.

SW1(config)#int

SW1(config)#interface f0/1

SW1(config-if)#no sh

SW1(config-if)#no shutdown

SW1(config-if)#

SW1(config-if)#

SW1(config-if)#

SW1(config-if)#

SW1(config-if)#

SW1(config-if)#^Z

SW1#

%SYS-5-CONFIG_I: Configured from console by console

SW1#

SW1#sh run

SW1#sh running-config

Building configuration...

Current configuration : 1034 bytes

!

version 12.2

no service timestamps log datetime msec

no service timestamps debug datetime msec

no service password-encryption

!

hostname SW1

!

!

!

!

spanning-tree mode pvst

!

interface FastEthernet0/1

!

interface FastEthernet0/2

!

interface FastEthernet0/3

!

interface FastEthernet0/4

!

interface FastEthernet0/5

!

interface FastEthernet0/6

!

interface FastEthernet0/7

!

interface FastEthernet0/8

!

interface FastEthernet0/9

!

interface FastEthernet0/10

!

interface FastEthernet0/11

!

interface FastEthernet0/12

!

interface FastEthernet0/13

!

interface FastEthernet0/14

!

interface FastEthernet0/15

!

interface FastEthernet0/16

!

interface FastEthernet0/17

!

interface FastEthernet0/18

!

interface FastEthernet0/19

!

interface FastEthernet0/20

!

interface FastEthernet0/21

!

interface FastEthernet0/22

!

interface FastEthernet0/23

!

interface FastEthernet0/24

!

interface GigabitEthernet1/1

!

interface GigabitEthernet1/2

!

interface Vlan1

no ip address

shutdown

!

!

line con 0

!

line vty 0 4

login

line vty 5 15

login

!

!

end

Switch 2

sh run

SW2#sh running-config

Building configuration...

Current configuration : 1034 bytes

!

version 12.2

no service timestamps log datetime msec

no service timestamps debug datetime msec

no service password-encryption

!

hostname SW2

!

!

!

!

spanning-tree mode pvst

!

interface FastEthernet0/1

!

interface FastEthernet0/2

!

interface FastEthernet0/3

!

interface FastEthernet0/4

!

interface FastEthernet0/5

!

interface FastEthernet0/6

!

interface FastEthernet0/7

!

interface FastEthernet0/8

!

interface FastEthernet0/9

!

interface FastEthernet0/10

!

interface FastEthernet0/11

!

interface FastEthernet0/12

!

interface FastEthernet0/13

!

interface FastEthernet0/14

!

interface FastEthernet0/15

!

interface FastEthernet0/16

!

interface FastEthernet0/17

!

interface FastEthernet0/18

!

interface FastEthernet0/19

!

interface FastEthernet0/20

!

interface FastEthernet0/21

!

interface FastEthernet0/22

!

interface FastEthernet0/23

!

interface FastEthernet0/24

!

interface GigabitEthernet1/1

!

interface GigabitEthernet1/2

!

interface Vlan1

no ip address

shutdown

!

!

line con 0

!

line vty 0 4

login

line vty 5 15

login

!

!

end

both are connected interface fa0/1

SW1#sh interfaces fa0/1

FastEthernet0/1 is up, line protocol is up (connected)

  Hardware is Lance, address is 0002.1765.8601 (bia 0002.1765.8601)

BW 100000 Kbit, DLY 1000 usec,

     reliability 255/255, txload 1/255, rxload 1/255

  Encapsulation ARPA, loopback not set

  Keepalive set (10 sec)

  Full-duplex, 100Mb/s

  input flow-control is off, output flow-control is off

  ARP type: ARPA, ARP Timeout 04:00:00

  Last input 00:00:08, output 00:00:05, output hang never

  Last clearing of "show interface" counters never

  Input queue: 0/75/0/0 (size/max/drops/flushes); Total output drops: 0

  Queueing strategy: fifo

  Output queue :0/40 (size/max)

  5 minute input rate 0 bits/sec, 0 packets/sec

  5 minute output rate 0 bits/sec, 0 packets/sec

     956 packets input, 193351 bytes, 0 no buffer

     Received 956 broadcasts, 0 runts, 0 giants, 0 throttles

     0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored, 0 abort

     0 watchdog, 0 multicast, 0 pause input

     0 input packets with dribble condition detected

     2357 packets output, 263570 bytes, 0 underruns

     0 output errors, 0 collisions, 10 interface resets

     0 babbles, 0 late collision, 0 deferred

     0 lost carrier, 0 no carrier

     0 output buffer failures, 0 output buffers swapped out

SW2#sh interfaces fa0/1

FastEthernet0/1 is up, line protocol is up (connected)

  Hardware is Lance, address is 0090.0c69.3301 (bia 0090.0c69.3301)

BW 100000 Kbit, DLY 1000 usec,

     reliability 255/255, txload 1/255, rxload 1/255

  Encapsulation ARPA, loopback not set

  Keepalive set (10 sec)

  Full-duplex, 100Mb/s

  input flow-control is off, output flow-control is off

  ARP type: ARPA, ARP Timeout 04:00:00

  Last input 00:00:08, output 00:00:05, output hang never

  Last clearing of "show interface" counters never

  Input queue: 0/75/0/0 (size/max/drops/flushes); Total output drops: 0

  Queueing strategy: fifo

  Output queue :0/40 (size/max)

  5 minute input rate 0 bits/sec, 0 packets/sec

  5 minute output rate 0 bits/sec, 0 packets/sec

     956 packets input, 193351 bytes, 0 no buffer

     Received 956 broadcasts, 0 runts, 0 giants, 0 throttles

     0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored, 0 abort

     0 watchdog, 0 multicast, 0 pause input

     0 input packets with dribble condition detected

     2357 packets output, 263570 bytes, 0 underruns

     0 output errors, 0 collisions, 10 interface resets

     0 babbles, 0 late collision, 0 deferred

     0 lost carrier, 0 no carrier

     0 output buffer failures, 0 output buffers swapped out

I am not using VTP passwords..

SW1#sh ip interface brief

Interface              IP-Address      OK? Method Status                Protocol

FastEthernet0/1        unassigned      YES manual up                    up

SW2#sh ip interface brief

Interface              IP-Address      OK? Method Status                Protocol

FastEthernet0/1        unassigned      YES manual up                    up

New Member

Packet Tracer LAB(VTP)

You must use trunk ports in order to get VTP going.

interface fa0/1

switchport trunk encapsulation dot1q

swithport mode trunk

end

It could be that after you configure these trunk ports, no vtp updates are getting through. Create a dummy vlan on the VTP master switch to see if it works.

vlan 999

name dummy-vlan

exit

Packet Tracer LAB(VTP)

ya thank you.. I forgot to do that.... its working now..

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