12-11-2007 08:33 AM - edited 03-05-2019 07:56 PM
Hi all,
I am really puzzled by this problem. I have 2 switches, the first one is a C3500/24 and the second one is a C3560/48. I trunked ports 24 of the C3500 switch with port 48 of the C3560 switch. I created 4 VLANs on the C3560 switch, domain name, and gave it a server role. I created the same domain name on the C3500 switch and gave it a client role. Here is additional info:
- SW1 VLAN1: 10.10.3.2
VLAN2: Eng, VLAN3: IT, VLAN4: HR, VLAN5: Finance
VTP Domain: ABC
VTP Role: Server
Default gateway: 10.10.3.1
- SW2 VLAN1: 10.10.3.3
VTP Domain: ABC
VTP Role: Server
Default gateway: 10.10.3.1
The problem is that the second switch (the client) isn't updating the VTP database with the VLAN information.
Can someone please help?
Thanks in advance,
sK
12-11-2007 08:42 AM
Post the output from these commands
show vtp status
and
show int trunk
12-11-2007 08:51 AM
SW1#show vtp status
VTP Version : 2
Configuration Revision : 2
Maximum VLANs supported locally : 1005
Number of existing VLANs : 9
VTP Operating Mode : Server
VTP Domain Name : ABC
VTP Pruning Mode : Disabled
VTP V2 Mode : Disabled
VTP Traps Generation : Disabled
MD5 digest : 0x8A 0x65 0xC9 0x0F 0xF7 0x27 0xC3 0xDA
Configuration last modified by 10.10.3.2 at 3-1-93 00:31:10
Local updater ID is 10.10.3.2 on interface Vl1 (lowest numbered VLAN interface found)
SW1#show int trunk
Port Mode Encapsulation Status Native vlan
Fa0/48 on 802.1q trunking 1
Port Vlans allowed on trunk
Fa0/48 1-4094
Port Vlans allowed and active in management domain
Fa0/48 1,20,30,40,50
Port Vlans in spanning tree forwarding state and not pruned
Fa0/48 1,20,30,40,50
---------------------------------------------------------------------------
SW2#sho vtp status
VTP Version : 2
Configuration Revision : 0
Maximum VLANs supported locally : 254
Number of existing VLANs : 5
VTP Operating Mode : Client
VTP Domain Name : ABC
VTP Pruning Mode : Disabled
VTP V2 Mode : Disabled
VTP Traps Generation : Disabled
MD5 digest : 0xF4 0xBA 0xAB 0x48 0x66 0xDA 0xDA 0xB2
Configuration last modified by 0.0.0.0 at 0-0-00 00:00:00
SW2#show interfaces fastEthernet 0/24 switchport
Name: Fa0/24
Switchport: Enabled
Administrative mode: trunk
Operational Mode: trunk
Administrative Trunking Encapsulation: dot1q
Operational Trunking Encapsulation: dot1q
Negotiation of Trunking: Disabled
Access Mode VLAN: 0 ((Inactive))
Trunking Native Mode VLAN: 1 (default)
Trunking VLANs Enabled: ALL
Trunking VLANs Active: 1
Pruning VLANs Enabled: 2-1001
Priority for untagged frames: 0
Override vlan tag priority: FALSE
Voice VLAN: none
Appliance trust: none
12-11-2007 09:00 AM
I've seen that happening before when you create all Vlans in the VTP server switch and then change to the server/client model.
Create another Vlan in the VTP server (a Vlan that you will delete later) to kickstart the process.
Your configuration looks fine, BTW.
Edit: Verify there isn't a password set. show vtp password on both switches will indicate if there is any.
12-11-2007 09:59 AM
Another question .... on the C3560, I am unable to disable the trunking on a port. I tried all relevent commands such as: no switchport mode trunk, no switchport trunk encap, and no switchport dynamic but the port is set to Auto mode and trunking...
How do you disable trunking on a port?
12-11-2007 10:08 AM
switchport mode access
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