No STP Instances VLAN X

[mikemanz83]

Good Day

I've been having a problem with a neighboring Switch not getting Ip from a Vlan (VLAN 731). When i troubleshoot the middle switch (the switch between the Inter-vlan and the swtich that is not getting Ip), im realizing that it doesn't have spanning tree instances for that vlan, even tought, the vlan does exist on the vlan data base, and it is passin through the interface trunk. Why do you think is happaning? (paste some usefull output):

es-plcSRadioP5(config)#do sh spanning vl 731

Spanning tree instance(s) for vlan 731 does not exist.

es-plcSRadioP5(config)#

es-plcSRadioP5#sh vl br | i 731
731 Usuarios_P5_MA active Fa1/0/1, Fa1/0/5, Fa1/0/6, Fa1/0/20, Fa1/0/21

es-plcSRadioP5#
es-plcSRadioP5#
es-plcSRadioP5#sh mac address-table vlan 731
Mac Address Table
-------------------------------------------

Vlan Mac Address Type Ports
---- ----------- -------- -----
All 0100.0ccc.cccc STATIC CPU
All 0100.0ccc.cccd STATIC CPU
All 0180.c200.0000 STATIC CPU
All 0180.c200.0001 STATIC CPU
All 0180.c200.0002 STATIC CPU
All 0180.c200.0003 STATIC CPU
All 0180.c200.0004 STATIC CPU
All 0180.c200.0005 STATIC CPU
All 0180.c200.0006 STATIC CPU
All 0180.c200.0007 STATIC CPU
All 0180.c200.0008 STATIC CPU
All 0180.c200.0009 STATIC CPU
All 0180.c200.000a STATIC CPU
All 0180.c200.000b STATIC CPU
All 0180.c200.000c STATIC CPU
All 0180.c200.000d STATIC CPU
All 0180.c200.000e STATIC CPU
All 0180.c200.000f STATIC CPU
All 0180.c200.0010 STATIC CPU
All ffff.ffff.ffff STATIC CPU
731 0006.2400.8fd7 DYNAMIC Gi1/0/1
731 0008.e3ff.fc50 DYNAMIC Gi1/0/1
731 000e.08df.4298 DYNAMIC Fa1/0/5
731 001e.0b25.561f DYNAMIC Fa1/0/6
731 001e.0b25.91ca DYNAMIC Gi1/0/1
731 2c41.38b4.71ec DYNAMIC Gi1/0/1
731 7081.0591.dc13 DYNAMIC Gi1/0/1
Total Mac Addresses for this criterion: 27

es-plcSRadioP5# sh int trunk

Port Mode Encapsulation Status Native vlan
Fa1/0/18 on 802.1q trunking 200
Gi1/0/1 on 802.1q trunking 666

Port Vlans allowed on trunk
Fa1/0/18 1-4094
Gi1/0/1 1-4094

Port Vlans allowed and active in management domain
Fa1/0/18 1-2,24,44-45,54-56,68,80-82,100-101,105,112,125,130,200-203,300-302,333,354,400-404,406-407,410,420,480,500,601-607,609,622,666,700-734,750,790-794,800-809,813-830,832,834,902-909,912,914-922,924-926,928-929,934,990-995,999-1000
Gi1/0/1 1-2,24,44-45,54-56,68,80-82,100-101,105,112,125,130,200-203,300-302,333,354,400-404,406-407,410,420,480,500,601-607,609,622,666,700-734,750,790-794,800-809,813-830,832,834,902-909,912,914-922,924-926,928-929,934,990-995,999-1000

Port Vlans in spanning tree forwarding state and not pruned
Fa1/0/18 1-2,24,44-45,54-56,68,80-82,100-101,105,112,125,130,200-203,300-302,333,354,400-404,406-407,410,420,480,500,601-607,609,622,666,700-734,750,790-794,800-809,813-830,832,834,902-909,912,914-922,924-926,928-929,934,990-995,999-1000
Gi1/0/1 1-2,24,44-45,54-56,68,80-82,100-101,105,112,125,130,200-203,300-302,333,354,400-404,406-407,410,420,480,500,601-607,609,622,666,700-734,750,790-794,800-809,813-830,832,834,902-909,912,914-922,924-926,928-929,934,990-995,999-1000

es-plcSRadioP5#sh spanning-tree summary
Switch is in rapid-pvst mode
Root bridge for: none
Extended system ID is enabled
Portfast Default is disabled
PortFast BPDU Guard Default is enabled
Portfast BPDU Filter Default is disabled
Loopguard Default is disabled
EtherChannel misconfig guard is enabled
UplinkFast is disabled
BackboneFast is disabled
Configured Pathcost method used is short

Name Blocking Listening Learning Forwarding STP Active
---------------------- -------- --------- -------- ---------- ----------
VLAN0001 0 0 0 2 2
VLAN0002 0 0 0 2 2
VLAN0024 0 0 0 2 2
VLAN0044 0 0 0 5 5
VLAN0045 0 0 0 2 2
VLAN0054 0 0 0 3 3
VLAN0055 0 0 0 2 2
VLAN0056 0 0 0 2 2
VLAN0068 0 0 0 2 2
VLAN0080 0 0 0 2 2
VLAN0081 0 0 0 2 2
VLAN0082 0 0 0 2 2
VLAN0100 0 0 0 2 2
VLAN0101 0 0 0 2 2
VLAN0105 0 0 0 2 2
VLAN0112 0 0 0 2 2
VLAN0125 0 0 0 2 2
VLAN0130 0 0 0 4 4
VLAN0200 0 0 0 2 2
VLAN0201 0 0 0 2 2
VLAN0202 0 0 0 2 2
VLAN0203 0 0 0 2 2
VLAN0300 0 0 0 2 2
VLAN0301 0 0 0 2 2
VLAN0302 0 0 0 2 2
VLAN0333 0 0 0 2 2
VLAN0354 0 0 0 2 2
VLAN0400 0 0 0 2 2
VLAN0401 0 0 0 2 2
VLAN0402 0 0 0 2 2
VLAN0403 0 0 0 2 2
VLAN0404 0 0 0 2 2
VLAN0406 0 0 0 2 2
VLAN0407 0 0 0 2 2
VLAN0410 0 0 0 2 2

Name Blocking Listening Learning Forwarding STP Active
---------------------- -------- --------- -------- ---------- ----------
VLAN0420 0 0 0 2 2
VLAN0480 0 0 0 2 2
VLAN0500 0 0 0 2 2
VLAN0606 0 0 0 3 3
VLAN0622 0 0 0 2 2
VLAN0666 0 0 0 2 2
VLAN0700 0 0 0 2 2
VLAN0732 0 0 0 2 2
VLAN0733 0 0 0 2 2
VLAN0734 0 0 0 2 2
VLAN0792 0 0 0 2 2
VLAN0793 0 0 0 2 2
VLAN0794 0 0 0 2 2
VLAN0834 0 0 0 2 2
VLAN0902 0 0 0 2 2
VLAN0903 0 0 0 2 2
VLAN0907 0 0 0 2 2
VLAN0909 0 0 0 2 2
VLAN0914 0 0 0 2 2
VLAN0915 0 0 0 2 2
VLAN0922 0 0 0 2 2
VLAN0928 0 0 0 2 2
VLAN0929 0 0 0 2 2
VLAN0934 0 0 0 2 2
VLAN0991 0 0 0 3 3
VLAN0992 0 0 0 2 2
VLAN0993 0 0 0 2 2
VLAN0994 0 0 0 2 2
VLAN1000 0 0 0 2 2
---------------------- -------- --------- -------- ---------- ----------
64 vlans 0 0 0 136 136
es-plcSRadioP5#

es-plcSRadioP5#sh ver
Cisco IOS Software, C3750 Software (C3750-IPSERVICESK9-M), Version 12.2(55)SE3, RELEASE SOFTWARE (fc1)
Technical Support: http://www.cisco.com/techsupport
Copyright (c) 1986-2011 by Cisco Systems, Inc.
Compiled Thu 05-May-11 16:29 by prod_rel_team
Image text-base: 0x01000000, data-base: 0x02F00000

[Georg Pauwen]

Hello,

try to delete and recreate the Vlan:

es-plcSRadioP5(config)#no vlan 731

es-plcSRadioP5(config)#vlan 731

[mikemanz83]

Already done that my friend!

Thanks

[paul driver · Accepted solution]

Hello

Looks like stp has been disabled for that vlan, So on the switch(s) apply the following:

conf t
spanning-tree vlan 731
wr

[mikemanz83]

Thank you Paul!!

I didnt realize this because the Vlan wasnt pruned by STP in the Interface Trunk Output!!

When reconfigure the vlan instance of STP, it come to life the instance!

es-plcSRadioP5#sh spanning-tree vl 731

VLAN0731
Spanning tree enabled protocol rstp
Root ID Priority 25307
Address 0008.e3ff.fc50
Cost 4
Port 1 (GigabitEthernet1/0/1)
Hello Time 2 sec Max Age 20 sec Forward Delay 15 sec

Bridge ID Priority 33499 (priority 32768 sys-id-ext 731)
Address 0013.1abb.8d00
Hello Time 2 sec Max Age 20 sec Forward Delay 15 sec
Aging Time 300 sec

Interface Role Sts Cost Prio.Nbr Type
------------------- ---- --- --------- -------- --------------------------------
Gi1/0/1 Root FWD 4 128.1 P2p
Fa1/0/5 Desg FWD 19 128.7 P2p Edge
Fa1/0/6 Desg FWD 19 128.8 P2p Edge
Fa1/0/18 Desg FWD 19 128.20 P2p

[paul driver]

Hello 
it won’t be pruned even if you disable stp for that vlan hence the confusion however vtp version 3 i think it would do as that has correlation with stp but i would need to validate that to be 100% 

Glad you got it working anyway and thanks for the rating and confirmation.

[mikemanz83]

Hi Paul!!

No Thank you!! thanks for your time and your help!

This sw have VTP version 2 running.

[mikemanz83]

@paul driver i have a question regarding VTP. If i change the current version of VTP (Version 2) to version 3 in my VSSLAN Intervlan Switch, there is somo kind of secondary effect or interrumption of service? I have most of my platform switchs in transparent mode but not all.