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Cisco 3750x Port going to default VLAN

Angus Bishop
Level 1
Level 1

Dear All ,

I am using 2  WS-C3750X-48T-S series switch in stacking .

I observed that today all of a sudden the below configuration got added and my network got impacted .

mls qos map policed-dscp  24 26 46 to 0

mls qos map cos-dscp 0 8 16 24 32 46 48 56

mls qos srr-queue input bandwidth 90 10

mls qos srr-queue input threshold 1 8 16

mls qos srr-queue input threshold 2 34 66

mls qos srr-queue input buffers 67 33

mls qos srr-queue input cos-map queue 1 threshold 2 1

mls qos srr-queue input cos-map queue 1 threshold 3 0

mls qos srr-queue input cos-map queue 2 threshold 1 2

mls qos srr-queue input cos-map queue 2 threshold 2 4 6 7

mls qos srr-queue input cos-map queue 2 threshold 3 3 5

mls qos srr-queue input dscp-map queue 1 threshold 2 9 10 11 12 13 14 15

mls qos srr-queue input dscp-map queue 1 threshold 3 0 1 2 3 4 5 6 7

mls qos srr-queue input dscp-map queue 1 threshold 3 32

mls qos srr-queue input dscp-map queue 2 threshold 1 16 17 18 19 20 21 22 23

mls qos srr-queue input dscp-map queue 2 threshold 2 33 34 35 36 37 38 39 48

mls qos srr-queue input dscp-map queue 2 threshold 2 49 50 51 52 53 54 55 56

mls qos srr-queue input dscp-map queue 2 threshold 2 57 58 59 60 61 62 63

mls qos srr-queue input dscp-map queue 2 threshold 3 24 25 26 27 28 29 30 31

mls qos srr-queue input dscp-map queue 2 threshold 3 40 41 42 43 44 45 46 47

mls qos srr-queue output cos-map queue 1 threshold 3 5

mls qos srr-queue output cos-map queue 2 threshold 3 3 6 7

mls qos srr-queue output cos-map queue 3 threshold 3 2 4

mls qos srr-queue output cos-map queue 4 threshold 2 1

mls qos srr-queue output cos-map queue 4 threshold 3 0

mls qos srr-queue output dscp-map queue 1 threshold 3 40 41 42 43 44 45 46 47

mls qos srr-queue output dscp-map queue 2 threshold 3 24 25 26 27 28 29 30 31

mls qos srr-queue output dscp-map queue 2 threshold 3 48 49 50 51 52 53 54 55

mls qos srr-queue output dscp-map queue 2 threshold 3 56 57 58 59 60 61 62 63

mls qos srr-queue output dscp-map queue 3 threshold 3 16 17 18 19 20 21 22 23

mls qos srr-queue output dscp-map queue 3 threshold 3 32 33 34 35 36 37 38 39

mls qos srr-queue output dscp-map queue 4 threshold 1 8

mls qos srr-queue output dscp-map queue 4 threshold 2 9 10 11 12 13 14 15

mls qos srr-queue output dscp-map queue 4 threshold 3 0 1 2 3 4 5 6 7

mls qos queue-set output 1 threshold 1 138 138 92 138

mls qos queue-set output 1 threshold 2 138 138 92 400

mls qos queue-set output 1 threshold 3 36 77 100 318

mls qos queue-set output 1 threshold 4 20 50 67 400

mls qos queue-set output 2 threshold 1 149 149 100 149

mls qos queue-set output 2 threshold 2 118 118 100 235

mls qos queue-set output 2 threshold 3 41 68 100 272

mls qos queue-set output 2 threshold 4 42 72 100 242

mls qos queue-set output 1 buffers 10 10 26 54

mls qos queue-set output 2 buffers 16 6 17 61

mls qos

!

!

class-map match-all AutoQoS-VoIP-RTP-Trust

match ip dscp ef

class-map match-all AutoQoS-VoIP-Control-Trust

match ip dscp cs3  af31

!

!

policy-map AutoQoS-Police-CiscoPhone

class AutoQoS-VoIP-RTP-Trust

  set dscp ef

  police 320000 8000 exceed-action policed-dscp-transmit

class AutoQoS-VoIP-Control-Trust

  set dscp cs3

police 32000 8000 exceed-action policed-dscp-transmit

!

interface GigabitEthernet1/0/3

switchport mode access

switchport voice vlan 1

switchport port-security maximum 11

switchport port-security

switchport port-security aging time 2

switchport port-security violation restrict

switchport port-security aging type inactivity

ip arp inspection limit rate 100

srr-queue bandwidth share 10 10 60 20

queue-set 2

priority-queue out

mls qos trust device cisco-phone

mls qos trust cos

  auto qos voip cisco-phone

spanning-tree portfast

spanning-tree bpduguard enable

service-policy input AutoQoS-Police-CiscoPhone

ip verify source

ip dhcp snooping limit rate 100

!

Can any one please let me know is this a bug or hardware issue which caused the issue .

All the interface got into voice vlan 1 .

I have no voip  in my network and i have no idea how voice vlan configuration came into picture .

Please help in getting the issue resolved

IOS VERSION : c3750e-universalk9-mz.122-53.SE2.bin

Regards

Angus

4 Replies 4

MikeyDunn1
Level 1
Level 1

Was this configuration change made to the running or startup config?

And do you have a copy of the configuration before this change?

ankugarg
Level 3
Level 3

Can you attach the full config

Hi,

I guess auto qos has been enabled..

Did you check whether the vlan.dat file got deleted?

Cheers

Somu

Rate helpful posts

HI All ,

The issue is sorted . Cisco works was configured to push config every 13:00 IST .

Once the Ciscoworks job is terminated the issue is resolved

Thanks for all your support .

Regards

Angus