VLAN information not propagate

[ahpark78]

Hi guys,

I have problem propagating the VLAN information although the VTP domain and password is the same for both switches..

I can propogate the VLAN no but not the description or the name of the VLAN meaning the Configuration changes didn't reflect on the other switch.

SWITCH A - VTP SERVER

CONFIGURATION is 17

Switch B - VTP CLient

Configuration is 16

NEed your assistance..

thanks!

ken

[royalblues]

Hi Ken,

Try deleting the VLAN database file from the client switch and reload it if you can

delete flash:vlan.dat

Then configure the same VTP domain name and password on the switch and see if the VLANS are replicating

HTH, rate if it does

Narayan

[michaelc0n]

check your trunks first..issue a show int. & post capture here as well as your current vtp status. thx

[chinazzzbj]

4506 sho vtp:

VTP Version : 2

Configuration Revision : 60

Maximum VLANs supported locally : 1005

Number of existing VLANs : 20

VTP Operating Mode : Server

VTP Domain Name : ******

VTP Pruning Mode : Enabled

VTP V2 Mode : Enabled

VTP Traps Generation : Disabled

MD5 digest : 0x8A 0xB3 0xCE 0x53 0xB2 0x24 0x06 0x32

Configuration last modified by 10.201.127.1 at 8-23-06 06:49:25

Local updater ID is 10.201.127.1 on interface Vl1 (lowest numbered VLAN interface found)

3750 sho vtp :

VTP Version : 2

Configuration Revision : 47

Maximum VLANs supported locally : 1005

Number of existing VLANs : 19

VTP Operating Mode : Server

VTP Domain Name : ******

VTP Pruning Mode : Enabled

VTP V2 Mode : Enabled

VTP Traps Generation : Disabled

MD5 digest : 0x14 0x15 0xB2 0xF6 0x38 0x3C 0x23 0x9A

Configuration last modified by 10.201.127.7 at 3-1-93 05:26:12

Local updater ID is 10.201.127.22 on interface Vl1 (lowest numbered VLAN interface found)

int mode all trunk,encapsulation dot1q

thanks

[michaelc0n]

A couple things...

-Are you trunk ports actually trunking? (CatOS = "show trunk" or IOS = "show interfaces card-type {mod/port} trunk") post printout here.

- Check vtp domain name (case-sensitive)

-set one vtp to client mode & one to server

-Do not enable VTP V2 unless every switch in the VTP domain supports V2.

-Reset your config revision by renaming the vtp domain name then back to original...recycle switches.

[chinazzzbj]

hi micharlcOn

I chack all these things,no error on these

I find these two switch has different MD5 digest,i think this is the main reason ,how can I correct this ?

thanks

[michaelc0n]

The vtp password MUST be the same on all switches & you must configure the password on all switches in the VTP domain. You can change this in the global config:

Router(config)#vtp password "123456789"

[chinazzzbj]

all switch is same ,they have't vtp password.is this correct ?

[smothuku]

Hi ,

can you enable cdp on both switches and check what's happening between two switches.