Hi,
Here is the topology. Please let me know. I tried reload and enabled
debugs but didn't help. Missing anything here?.
sw1 (f0/13-15) -- trunk - sw2(f0/13-15)
sw1 (f0/16-18) -- trunk - sw3 (f0/13-15)
sw1 (f0/19-21) -- trunk - sw4 (f13-15)
sw2 is server
sw3 and sw4 are clients
sw1 made vtp mode transparent
1. create vlan X on sw2
2. it should go to sw1 (transparent) not learn but fwd them to sw3 and sw4
Issue:
sw3 and sw4 are not learning vlan X.
Trunks are formed. Domain name is matched. Enabled debugs but clients are
not updating vtp database from server.
Outputs:
sw2 server
SW2#sh vtp status
VTP Version : running VTP2
Configuration Revision : 9
Maximum VLANs supported locally : 1005
Number of existing VLANs : 22
VTP Operating Mode : Server
VTP Domain Name : CCIE
VTP Pruning Mode : Disabled
VTP V2 Mode : Enabled
VTP Traps Generation : Disabled
MD5 digest : 0x15 0x4D 0x3A 0xF8 0xC5 0x96 0x09 0x49
Configuration last modified by 155.30.8.8 at 3-2-93 18:38:03
Local updater ID is 155.30.8.8 on interface Vl8 (lowest numbered VLAN
interface found)
SW2#
SW2#
SW2#sh int f0/13 tru
Port Mode Encapsulation Status Native vlan
Fa0/13 auto 802.1q trunking 1
Port Vlans allowed on trunk
Fa0/13 1-4094
Port Vlans allowed and active in management domain
Fa0/13 1,5,7-10,22,43,58,67,79,124-129,146
Port Vlans in spanning tree forwarding state and not pruned
Fa0/13 1,5,7-10,22,43,58,67,79,124-129,146
SW2#sh int f0/14 tru
Port Mode Encapsulation Status Native vlan
Fa0/14 auto 802.1q trunking 1
Port Vlans allowed on trunk
Fa0/14 1-4094
Port Vlans allowed and active in management domain
Fa0/14 1,5,7-10,22,43,58,67,79,124-129,146
Port Vlans in spanning tree forwarding state and not pruned
Fa0/14 1,5,8-10,22,124-129
SW2#sh int f0/15 tru
Port Mode Encapsulation Status Native vlan
Fa0/15 auto 802.1q trunking 1
Port Vlans allowed on trunk
Fa0/15 1-4094
Port Vlans allowed and active in management domain
Fa0/15 1,5,7-10,22,43,58,67,79,124-129,146
Port Vlans in spanning tree forwarding state and not pruned
Fa0/15 1,5,8-10,22,124-129
SW2#
======
SW1#sh int trunk
Port Mode Encapsulation Status Native vlan
Fa0/13 desirable 802.1q trunking 1
Fa0/14 desirable 802.1q trunking 1
Fa0/15 desirable 802.1q trunking 1
Fa0/16 desirable 802.1q trunking 1
Fa0/17 desirable 802.1q trunking 1
Fa0/18 desirable 802.1q trunking 1
Fa0/19 desirable 802.1q trunking 1
Fa0/20 desirable 802.1q trunking 1
Fa0/21 desirable 802.1q trunking 1
Port Vlans allowed on trunk
Fa0/13 1-4094
Fa0/14 1-4094
Fa0/15 1-4094
Fa0/16 1-4094
Fa0/17 1-4094
Fa0/18 1-4094
Fa0/19 1-4094
Fa0/20 1-4094
Fa0/21 1-4094
Port Vlans allowed and active in management domain
Fa0/13 1,7,43,58,67,79,146
Fa0/14 1,7,43,58,67,79,146
Fa0/15 1,7,43,58,67,79,146
Fa0/16 1,7,43,58,67,79,146
Fa0/17 1,7,43,58,67,79,146
Fa0/18 1,7,43,58,67,79,146
Fa0/19 1,7,43,58,67,79,146
Fa0/20 1,7,43,58,67,79,146
Fa0/21 1,7,43,58,67,79,146
Port Vlans in spanning tree forwarding state and not pruned
Fa0/13 7,43,58,67,79,146
Fa0/14 7,43,58,67,79,146
Fa0/15 7,43,58,67,79,146
Fa0/16 7,43,58,67,79,146
Fa0/17 7,43,58,67,79,146
Fa0/18 7,43,58,67,79,146
Fa0/19 1,7,43,58,67,79,146
Fa0/20 none
Fa0/21 none
SW1#
======
SW3#sh vtp status
VTP Version : running VTP2
Configuration Revision : 5
Maximum VLANs supported locally : 1005
Number of existing VLANs : 18
VTP Operating Mode : Client
VTP Domain Name : CCIE
VTP Pruning Mode : Disabled
VTP V2 Mode : Enabled
VTP Traps Generation : Disabled
MD5 digest : 0xF5 0xDB 0xB5 0xDC 0x36 0xF8 0xF3 0x30
Configuration last modified by 155.30.8.8 at 3-2-93 18:09:58
SW3#
SW3#sh int f0/13 tru
Port Mode Encapsulation Status Native vlan
Fa0/13 auto 802.1q trunking 1
Port Vlans allowed on trunk
Fa0/13 1-4094
Port Vlans allowed and active in management domain
Fa0/13 1,5,7-10,22,43,58,67,79,124-125,146
Port Vlans in spanning tree forwarding state and not pruned
Fa0/13 1,5,7-10,22,43,58,67,79,124-125,146
SW3#sh int f0/14 tru
Port Mode Encapsulation Status Native vlan
Fa0/14 auto 802.1q trunking 1
Port Vlans allowed on trunk
Fa0/14 1-4094
Port Vlans allowed and active in management domain
Fa0/14 1,5,7-10,22,43,58,67,79,124-125,146
Port Vlans in spanning tree forwarding state and not pruned
Fa0/14 1,5,8-10,22,124-125
SW3#sh int f0/15 tru
Port Mode Encapsulation Status Native vlan
Fa0/15 auto 802.1q trunking 1
Port Vlans allowed on trunk
Fa0/15 1-4094
Port Vlans allowed and active in management domain
Fa0/15 1,5,7-10,22,43,58,67,79,124-125,146
Port Vlans in spanning tree forwarding state and not pruned
Fa0/15 1,5,8-10,22,124-125
======
W4#sh vtp status
VTP Version : running VTP2
Configuration Revision : 5
Maximum VLANs supported locally : 1005
Number of existing VLANs : 18
VTP Operating Mode : Client
VTP Domain Name : CCIE
VTP Pruning Mode : Disabled
VTP V2 Mode : Enabled
VTP Traps Generation : Disabled
MD5 digest : 0xF5 0xDB 0xB5 0xDC 0x36 0xF8 0xF3 0x30
Configuration last modified by 155.30.8.8 at 3-2-93 18:09:58
SW4#
SW4#sh int f0/13 tru
Port Mode Encapsulation Status Native vlan
Fa0/13 auto 802.1q trunking 1
Port Vlans allowed on trunk
Fa0/13 1-4094
Port Vlans allowed and active in management domain
Fa0/13 1,5,7-10,22,43,58,67,79,124-125,146
Port Vlans in spanning tree forwarding state and not pruned
Fa0/13 1,5,7-10,22,43,58,67,79,124-125,146
SW4#sh int f0/14 tru
Port Mode Encapsulation Status Native vlan
Fa0/14 auto 802.1q trunking 1
Port Vlans allowed on trunk
Fa0/14 1-4094
Port Vlans allowed and active in management domain
Fa0/14 1,5,7-10,22,43,58,67,79,124-125,146
Port Vlans in spanning tree forwarding state and not pruned
Fa0/14 1,5,7-10,22,43,58,67,79,124-125,146
SW4#sh int f0/15 tru
Port Mode Encapsulation Status Native vlan
Fa0/15 auto 802.1q trunking 1
Port Vlans allowed on trunk
Fa0/15 1-4094
Port Vlans allowed and active in management domain
Fa0/15 1,5,7-10,22,43,58,67,79,124-125,146
Port Vlans in spanning tree forwarding state and not pruned
Fa0/15 1,5,7-10,22,43,58,67,79,124-125,146
On Thu, Mar 15, 2012 at 1:49 PM, Carlos G Mendioroz <tron_at_huapi.ba.ar>wrote:
> Karthik,
> there are some discussions pointing that a transparent switch in v2 (or
> v1) is only transparent when the domains match, or when the transparent
> switch has a null domain. Your remark on the MD5 hash is an interesting
> one. May be the transparent switch is just dropping the messages (bug ?)
>
> Try clearing the domain to see if that helps...
> -Carlos
>
> karthik thatikonda @ 15/03/2012 14:51 -0300 dixit:
>
>> To explain clearly.
>>
>> trunks are configured between sw1 to sw2, sw3 and sw4.
>>
>> sw1 is in transparent mode
>>
>> sw2 is in server mode
>>
>> sw3 and sw4 are in client mode
>>
>>
>> Once I changed sw1 to transparent md5 on sw1 doesn't match to that on
>> sw2.
>> Also, since sw2 is server mode, when I created a vlan it supposed to
>> propagate to other switches in client mode that is sw3 and sw4. But, I
>> don't see that happening when sw1 is in transparent mode.
>>
>>
>>
>> SW1#sh vtp status
>> VTP Version : 2
>> Configuration Revision : 0
>> Maximum VLANs supported locally : 1005
>> Number of existing VLANs : 11
>> VTP Operating Mode : Transparent
>> VTP Domain Name : CCIE
>> VTP Pruning Mode : Disabled
>> VTP V2 Mode : Enabled
>> VTP Traps Generation : Disabled
>> MD5 digest : 0xC4 0x17 0x67 0xE6 0xB0 0x6D 0xF0 0x38
>> Configuration last modified by 155.30.37.7 at 3-2-93 18:09:58
>> SW1#
>> SW1#sh vlan id 126
>> VLAN id 126 not found in current VLAN database
>> SW1#conf t
>> Enter configuration commands, one per line. End with CNTL/Z.
>> SW1(config)#vtp vers
>> SW1(config)#vtp version 2
>> VTP mode already in V2.
>> SW1(config)#
>>
>> ===
>>
>> SW2(config)#vl 126
>> SW2(config-vlan)#
>> SW2#
>> SW2#
>> SW2#
>> SW2#
>> SW2#
>> 1d18h: %SYS-5-CONFIG_I: Configured from console by console
>> SW2#sh vl id 126
>>
>> VLAN Name Status Ports
>> ---- ------------------------------**-- ---------
>> ------------------------------**-
>> 126 VLAN0126 active Fa0/13, Fa0/14, Fa0/15
>>
>> VLAN Type SAID MTU Parent RingNo BridgeNo Stp BrdgMode Trans1
>> Trans2
>> ---- ----- ---------- ----- ------ ------ -------- ---- -------- ------
>> ------
>> 126 enet 100126 1500 - - - - - 0 0
>>
>> Remote SPAN VLAN
>> ----------------
>> Disabled
>>
>> Primary Secondary Type Ports
>> ------- --------- -----------------
>> ------------------------------**------------
>>
>> SW2#
>> SW2#sh vtp status
>> VTP Version : 2
>> Configuration Revision : 6
>> Maximum VLANs supported locally : 1005
>> Number of existing VLANs : 19
>> VTP Operating Mode : Server
>> VTP Domain Name : CCIE
>> VTP Pruning Mode : Disabled
>> VTP V2 Mode : Enabled
>> VTP Traps Generation : Disabled
>> MD5 digest : 0xA0 0x68 0x07 0x2C 0xB9 0xF2 0xFA 0x6B
>> Configuration last modified by 155.30.8.8 at 3-2-93 18:12:06
>> Local updater ID is 155.30.8.8 on interface Vl8 (lowest numbered VLAN
>> interface found)
>> SW2#
>> SW2#
>> SW2#
>>
>>
>> ====
>>
>> SW4# sh vl | i ^126
>> SW4#sh vl id 126
>> VLAN id 126 not found in current VLAN database
>> SW4#sh vtp status
>> VTP Version : 2
>> Configuration Revision : 5
>> Maximum VLANs supported locally : 1005
>> Number of existing VLANs : 18
>> VTP Operating Mode : Client
>> VTP Domain Name : CCIE
>> VTP Pruning Mode : Disabled
>> VTP V2 Mode : Enabled
>> VTP Traps Generation : Disabled
>> MD5 digest : 0xF5 0xDB 0xB5 0xDC 0x36 0xF8 0xF3 0x30
>> Configuration last modified by 155.30.8.8 at 3-2-93 18:09:58
>>
>>
>> Thanks,
>>
>>
>> Karthik.
>>
>>
>> On Wed, Mar 14, 2012 at 10:31 PM, karthik thatikonda
>> <get2explore_at_gmail.com>wrote:
>>
>> Hi,
>>>
>>> When configuring sw2 as transparent mode, seeing that md5 is not matched
>>> on the switches and any creation of vlan on sw1 i.e. server is not
>>> propagation vtp updates to sw3 and sw4. If I change sw2 to client, md5
>>> shows correct on all switches and sw3 and sw4 learn vlan created on sw2
>>> (server). Am I missing anything?. Please, let me know.
>>>
>>> SW2#sh vtp status
>>> VTP Version : 2
>>> Configuration Revision : 4
>>> Maximum VLANs supported locally : 1005
>>> Number of existing VLANs : 18
>>> VTP Operating Mode : Server>>>>>>>>>>>>>>>>>>>>>>>
>>> VTP Domain Name : CCIE
>>> VTP Pruning Mode : Disabled
>>> VTP V2 Mode : Disabled
>>> VTP Traps Generation : Disabled
>>> MD5 digest : 0x3C 0xAF 0xD7 0xFB 0xB5 0x11 0xB4 0x4B
>>>
>>>>
>>>>>>>>>>>>>>>>>>>>> Configuration last modified by 155.30.8.8 at 3-2-93
>>> 05:38:01
>>> Local updater ID is 155.30.8.8 on interface Vl8 (lowest numbered VLAN
>>> interface found)
>>> SW2#
>>> SW2#
>>>
>>>
>>>
>>> SW1#sh vtp status
>>> VTP Version : 2
>>> Configuration Revision : 0
>>> Maximum VLANs supported locally : 1005
>>> Number of existing VLANs : 11
>>> VTP Operating Mode : Transparent>>>>>>>>>>>>>>>>>>>**
>>> >>>>>>>>>>
>>> VTP Domain Name : CCIE
>>> VTP Pruning Mode : Disabled
>>> VTP V2 Mode : Disabled
>>> VTP Traps Generation : Disabled
>>> MD5 digest : 0x9B 0x27 0x73 0x7F 0xB4 0xB1 0xD3 0x29
>>> ==========>>>>>>>
>>> Configuration last modified by 155.30.37.7 at 3-2-93 03:10:45
>>> SW1#conf t
>>> Enter configuration commands, one per line. End with CNTL/Z.
>>> SW1(config)#vtp mod clie
>>> Setting device to VTP CLIENT mode.
>>> SW1(config)#
>>>
>>> +++++
>>>
>>> AFter changing to client. md5 matches
>>>
>>> +++++
>>>
>>>
>>> SW1#sh vtp status
>>> VTP Version : 2
>>> Configuration Revision : 4
>>> Maximum VLANs supported locally : 1005
>>> Number of existing VLANs : 18
>>> VTP Operating Mode : Client
>>> VTP Domain Name : CCIE
>>> VTP Pruning Mode : Disabled
>>> VTP V2 Mode : Disabled
>>> VTP Traps Generation : Disabled
>>> MD5 digest : 0x3C 0xAF 0xD7 0xFB 0xB5 0x11 0xB4 0x4B
>>> Configuration last modified by 155.30.8.8 at 3-2-93 05:38:01
>>> Thanks,
>>>
>>> Karthik.
>>>
>>
>>
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>>
>>
>>
>>
>>
>>
> --
> Carlos G Mendioroz <tron_at_huapi.ba.ar> LW7 EQI Argentina
Blogs and organic groups at http://www.ccie.net
Received on Thu Mar 15 2012 - 14:22:10 ART
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