09-12-2007 09:48 AM - edited 03-05-2019 06:26 PM
We have 2 6509's w/ IOS one is setup as server and the other is client we have a link between the 2 with 10G. However, the vlans are not propagating to the client. The VTP domain name is correct and no password is used. Any ideas?
Server
VTP Version : 2
Configuration Revision : 507
Maximum VLANs supported locally : 1005
Number of existing VLANs : 118
VTP Operating Mode : Server
VTP Domain Name : Universe
VTP Pruning Mode : Enabled
VTP V2 Mode : Disabled
VTP Traps Generation : Enabled
MD5 digest : 0xBC 0x5A 0x87 0xAD 0x08 0xDD 0x10 0x4F
Configuration last modified by 172.24.2.4 at 9-4-07 16:12:10
Local updater ID is 172.24.2.4 on interface Vl1 (lowest numbered VLAN interface found)
Client
VTP Version : 2
Configuration Revision : 0
Maximum VLANs supported locally : 1005
Number of existing VLANs : 5
VTP Operating Mode : Client
VTP Domain Name : Universe
VTP Pruning Mode : Disabled
VTP V2 Mode : Disabled
VTP Traps Generation : Enabled
MD5 digest : 0x8A 0xBF 0x1F 0xB3 0x26 0x41 0x2A 0x89
Configuration last modified by 127.0.0.51 at 0-0-00 00:00:00
09-12-2007 10:04 AM
On the client, try setting it to vtp transparent, then re-apply the domain name &, exit vtp mode using "exit".
Check that it is correct.
Then re-enter vtp config and set the device to client mode, again end with exit, not ctrl-Z.
There might be a space behind the domain name.
regards,
Leo
09-12-2007 10:09 AM
Thx Leo...Still no luck! I checked the cdp neighbors and it shows it on the server side but nothing on the client side very unusual?
Device ID: SW-CA-DC-F1.mitchell.com
Entry address(es):
IP address: 172.24.2.8
Platform: cisco WS-C6509, Capabilities: Router Switch
Interface: TenGigabitEthernet1/3, Port ID (outgoing port): TenGigabitEthernet1/1
Holdtime : 124 sec
Version :
Cisco Internetwork Operating System Software
IOS (tm) s72033_rp Software (s72033_rp-ADVENTERPRISEK9_WAN-M), Version 12.2(18)SXF10, RELEASE SOFTWARE (fc1)
Technical Support: http://www.cisco.com/techsupport
Copyright (c) 1986-2007 by cisco Systems, Inc.
Compiled Fri 13-Jul-07 07:59 by kellythw
advertisement version: 2
VTP Management Domain: 'Universe'
Native VLAN: 1
Duplex: full
09-12-2007 10:30 AM
Do you have a trunk between the two switches. Can you post the following output from both switches.
show int trunk
show vtp statistics
09-12-2007 02:05 PM
I see joins being received but none transmitted...very unusual?
SW-CA-DC-F1#sh int trunk
Port Mode Encapsulation Status Native vlan
Te1/2 on 802.1q trunking 1
Port Vlans allowed on trunk
Te1/2 1-4094
Port Vlans allowed and active in management domain
Te1/2 1
Port Vlans in spanning tree forwarding state and not pruned
Te1/2 1
SW-CA-DC-F1#sh vtp counters
VTP statistics:
Summary advertisements received : 141
Subset advertisements received : 0
Request advertisements received : 0
Summary advertisements transmitted : 0
Subset advertisements transmitted : 0
Request advertisements transmitted : 101
Number of config revision errors : 0
Number of config digest errors : 0
Number of V1 summary errors : 0
VTP pruning statistics:
Trunk Join Transmitted Join Received Summary advts received from
non-pruning-capable device
---------------- ---------------- ---------------- ---------------------------
Te1/2 0 125 0
09-12-2007 10:30 AM
Not having CDP info on both sides may be an indication of a unidirectional link. You should adress that issue first.
VTP is in fact pretty easy and from the info provided, I cannot see any real reason why it doesn't work here. Please check the links below:
http://www.cisco.com/en/US/tech/tk389/tk689/technologies_tech_note09186a0080890613.shtml
and:
http://www.cisco.com/en/US/tech/tk389/tk689/technologies_tech_note09186a0080094c52.shtml
regards,
Leo
09-12-2007 02:18 PM
I agree you may have uni link if you don't have cdp on both sides . One reason why I don't use the switchport mode trunk command . because the trunk can still look up even though its not working right. Switchport mode dynamic desirable lets it negotiate and will also bring the trunk down if you run inot a unidirectional link , you could also use something like UDLD for this also .
09-12-2007 02:29 PM
Looks like UDLD it is, what are some things to look for?
SW-CA-DC-F1#sh udld tenGigabitEthernet 1/1
Interface Te1/1
---
Port enable administrative configuration setting: Follows device default
Port enable operational state: Enabled / in aggressive mode
Current bidirectional state: Unknown
Current operational state: Link down
Message interval: 15
Time out interval: 5
No neighbor cache information stored
SW-CA-DC-D2#sh udld t1/3
Interface Te1/3
---
Port enable administrative configuration setting: Follows device default
Port enable operational state: Enabled / in aggressive mode
Current bidirectional state: Bidirectional
Current operational state: Advertisement - Single neighbor detected
Message interval: 15
Time out interval: 5
Entry 1
---
Expiration time: 37
Device ID: 1
Current neighbor state: Bidirectional
Device name: TSC0714002L
Port ID: Te1/2
Neighbor echo 1 device: SMG1044N2SX
Neighbor echo 1 port: Te1/3
Message interval: 15
Time out interval: 5
CDP Device name: SW-CA-DC-F1.mitchell.com
09-12-2007 04:51 PM
Are you sure you are looking at the correct corresponding ports , your one side shows bidirectional which means it has a complete path while the other side shows unknown and link down , can't have it bidirectional on one side and link down on the other and with not showing cdp on one side , verify with cdp on the side you can see as to the port on the far end . Still sounds like the link is not correct . If you do a show int trunk on each side what does it look like ? Also not seeing the config make sure the native vlan matches on each side of the link otherwise the trunk will not work correctly. Also the last post is a little confusing too if you look at the udld infor for the one you posted it looks like your corresponding port is TE1/2 not 1/1 like you posted for the one that is shown as down so to me it looks like it is TE1/2 on router F1 and TE1/3 on D2 . Look at the parameters on both those ports and post the show run int TE1/2 on F1 and a show runn int TE1/3 on D2 .
09-12-2007 06:45 PM
Entry 1
---
Expiration time: 37
Device ID: 1
Current neighbor state: Bidirectional
Device name: TSC0714002L
Port ID: Te1/2
Neighbor echo 1 device: SMG1044N2SX
Neighbor echo 1 port: Te1/3
Message interval: 15
Time out interval: 5
CDP Device name: SW-CA-DC-F1.mitchell.com
_____________________
The Port ID: entry tells me the remote device is source from T1/2 not T1/1.
You are looking at the wrong port on SW-CA-DC-F1.mitchell.com
09-12-2007 09:45 PM
Thx edison! I did post the wrong port t1/2 was the actual trunk. So i removed portfast trunk and the udld came up bidir immediately...but vtp info is still not being passed from the client...i can connect fine but vlans are still not being propagated to the client...Ive exausted all means and TAC is scratching there heads...please help! This may help, It coverges properly over 1gig but not over 10gig???
09-13-2007 03:38 AM
Can you post the show runn int te1/2 from the one side and sh runn int te1/1 for the other side here . Also if these are the only 2 devices running vtp then you might try changing the vtp domain name to something simple to test like "abc" and make sure you don't hit the space bar at the end . Also please post "show int trunk " along with the other info. also i don't know if this makes any difference or not but you have vtp pruning mode enabled on one side and not the other so you might try changing that just to make both sides equal.
09-13-2007 04:27 AM
Did you implement 'vtp passwords' on any of the switches ?
Passwords must match ....
09-13-2007 07:38 AM
No VTP passwords used, here is the info again:
Thank you all for your input...
SW-CA-DC-F1#sh int trunk
Port Mode Encapsulation Status Native vlan
Te1/1 desirable 802.1q trunking 1
Port Vlans allowed on trunk
Te1/1 1-1005
Port Vlans allowed and active in management domain
Te1/1 1
Port Vlans in spanning tree forwarding state and not pruned
Te1/1 1
SW-CA-DC-F1#sh vtp counters
VTP statistics:
Summary advertisements received : 702
Subset advertisements received : 0
Request advertisements received : 0
Summary advertisements transmitted : 0
Subset advertisements transmitted : 0
Request advertisements transmitted : 478
Number of config revision errors : 0
Number of config digest errors : 0
Number of V1 summary errors : 0
VTP pruning statistics:
Trunk Join Transmitted Join Received Summary advts received from
non-pruning-capable device
---------------- ---------------- ---------------- ---------------------------
Te1/1 0 9878 0
interface TenGigabitEthernet1/1
description Trunk To CORE1
switchport
switchport trunk encapsulation dot1q
switchport trunk allowed vlan 1-1005
interface TenGigabitEthernet1/3
description Trunk To SW-CA-DC-F1
switchport
switchport trunk encapsulation dot1q
switchport trunk allowed vlan 1-1005
spanning-tree guard root
09-13-2007 07:48 AM
You only posted the config from one side.
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