Re: Cisco 2960X voice VLAN UP/DOWN

rsthakur · ‎10-04-2020

Cisco 2960X I am facing problem-related to voice VLAN. It's up down frequently but data VLAN is working fine.

Kindly find attach notepad for better help.

rsthakur · ‎10-04-2020

#sh log

Oct 2 03:19:48: %LINEPROTO-5-UPDOWN: Line protocol on Interface Vlan5, changed state to down
Oct 2 03:19:49: %LINEPROTO-5-UPDOWN: Line protocol on Interface Vlan5, changed state to up
Oct 2 06:00:46: %LINEPROTO-5-UPDOWN: Line protocol on Interface Vlan5, changed state to down
Oct 2 06:00:47: %LINEPROTO-5-UPDOWN: Line protocol on Interface Vlan5, changed state to up
Oct 2 06:33:05: %LINEPROTO-5-UPDOWN: Line protocol on Interface Vlan5, changed state to down
Oct 2 06:33:05: %LINEPROTO-5-UPDOWN: Line protocol on Interface Vlan5, changed state to up
Oct 3 00:37:24: %LINEPROTO-5-UPDOWN: Line protocol on Interface Vlan5, changed state to down
Oct 3 00:37:25: %LINEPROTO-5-UPDOWN: Line protocol on Interface Vlan5, changed state to up
Oct 3 05:58:28: %LINEPROTO-5-UPDOWN: Line protocol on Interface Vlan5, changed state to down
Oct 3 05:58:30: %LINEPROTO-5-UPDOWN: Line protocol on Interface Vlan5, changed state to up
Oct 3 06:25:14: %LINEPROTO-5-UPDOWN: Line protocol on Interface Vlan5, changed state to down
Oct 3 06:25:15: %LINEPROTO-5-UPDOWN: Line protocol on Interface Vlan5, changed state to up
Oct 3 10:07:57: %LINEPROTO-5-UPDOWN: Line protocol on Interface Vlan5, changed state to down
Oct 3 10:07:58: %LINEPROTO-5-UPDOWN: Line protocol on Interface Vlan5, changed state to up
Oct 3 11:45:53: %LINEPROTO-5-UPDOWN: Line protocol on Interface Vlan5, changed state to down
Oct 3 11:45:53: %LINEPROTO-5-UPDOWN: Line protocol on Interface Vlan5, changed state to up
Oct 3 13:55:27: %LINEPROTO-5-UPDOWN: Line protocol on Interface Vlan5, changed state to down
Oct 3 13:55:28: %LINEPROTO-5-UPDOWN: Line protocol on Interface Vlan5, changed state to up
Oct 3 16:57:42: %LINEPROTO-5-UPDOWN: Line protocol on Interface Vlan5, changed state to down
Oct 3 16:57:43: %LINEPROTO-5-UPDOWN: Line protocol on Interface Vlan5, changed state to up
Oct 3 18:08:16: %LINEPROTO-5-UPDOWN: Line protocol on Interface Vlan5, changed state to down
Oct 3 18:08:16: %LINEPROTO-5-UPDOWN: Line protocol on Interface Vlan5, changed state to up
Oct 3 18:08:58: %LINEPROTO-5-UPDOWN: Line protocol on Interface Vlan5, changed state to down
Oct 3 18:09:00: %LINEPROTO-5-UPDOWN: Line protocol on Interface Vlan5, changed state to up
Oct 3 18:09:00: %LINEPROTO-5-UPDOWN: Line protocol on Interface Vlan5, changed state to down
Oct 3 18:09:02: %LINEPROTO-5-UPDOWN: Line protocol on Interface Vlan5, changed state to up
Oct 4 03:44:44: %LINEPROTO-5-UPDOWN: Line protocol on Interface Vlan5, changed state to down
Oct 4 03:44:46: %LINEPROTO-5-UPDOWN: Line protocol on Interface Vlan5, changed state to up
Oct 4 18:23:05: %LINEPROTO-5-UPDOWN: Line protocol on Interface Vlan5, changed state to down
Oct 4 18:23:05: %LINEPROTO-5-UPDOWN: Line protocol on Interface Vlan5, changed state to up
Oct 4 20:11:21: %LINEPROTO-5-UPDOWN: Line protocol on Interface Vlan5, changed state to down
Oct 4 20:11:21: %LINEPROTO-5-UPDOWN: Line protocol on Interface Vlan5, changed state to up
Oct 4 23:45:28: %LINEPROTO-5-UPDOWN: Line protocol on Interface Vlan5, changed state to down
Oct 4 23:45:29: %LINEPROTO-5-UPDOWN: Line protocol on Interface Vlan5, changed state to up
Oct 5 02:35:34: %LINEPROTO-5-UPDOWN: Line protocol on Interface Vlan5, changed state to down
Oct 5 02:35:35: %LINEPROTO-5-UPDOWN: Line protocol on Interface Vlan5, changed state to up
Oct 5 03:05:11: %LINEPROTO-5-UPDOWN: Line protocol on Interface Vlan5, changed state to down
Oct 5 03:05:11: %LINEPROTO-5-UPDOWN: Line protocol on Interface Vlan5, changed state to up
Oct 5 08:46:50: %LINEPROTO-5-UPDOWN: Line protocol on Interface Vlan5, changed state to down
Oct 5 08:46:50: %LINEPROTO-5-UPDOWN: Line protocol on Interface Vlan5, changed state to up
Oct 5 09:38:26: %LINEPROTO-5-UPDOWN: Line protocol on Interface Vlan5, changed state to down
Oct 5 09:38:26: %LINEPROTO-5-UPDOWN: Line protocol on Interface Vlan5, changed state to up
Oct 5 11:39:32: %LINEPROTO-5-UPDOWN: Line protocol on Interface Vlan5, changed state to down
Oct 5 11:39:33: %LINEPROTO-5-UPDOWN: Line protocol on Interface Vlan5, changed state to up

#sh run
Building configuration...

Current configuration : 5551 bytes
!
! Last configuration change at 16:43:21 GMT Tue Sep 29 2020
! NVRAM config last updated at 16:43:22 GMT Tue Sep 29 2020
!
version 15.2
no service pad
service timestamps debug datetime msec
service timestamps log datetime localtime
service password-encryption
!
hostname AB-1E_GF_28.128.1
!
boot-start-marker
boot-end-marker
!
enable secret 9 $9$mFxRBkEvqud1Nb$mDeV8I/ScQKDCztruRoMMDFtEGJ5f..wnp0nOopmyRM
!
no aaa new-model
clock timezone GMT 5 30
switch 1 provision ws-c2960x-24pd-l
!
!
!
!
!
!
ip name-server 172.30.1.2
!
!
!
!
!
!
!
!
!
spanning-tree mode rapid-pvst
spanning-tree extend system-id
!
!
!
!
vlan internal allocation policy ascending
!
!
!
!
!
!
!
!
!
!
!
interface FastEthernet0
no ip address
shutdown
!
interface GigabitEthernet1/0/1
switchport access vlan 27
switchport voice vlan 5
storm-control broadcast level 1.00
storm-control multicast level 1.00
spanning-tree portfast edge
!
interface GigabitEthernet1/0/2
switchport access vlan 27
switchport voice vlan 5
storm-control broadcast level 1.00
storm-control multicast level 1.00
spanning-tree portfast edge
!
interface GigabitEthernet1/0/3
switchport access vlan 27
switchport voice vlan 5
storm-control broadcast level 1.00
storm-control multicast level 1.00
spanning-tree portfast edge
!
interface GigabitEthernet1/0/4
switchport access vlan 27
switchport voice vlan 5
storm-control broadcast level 1.00
storm-control multicast level 1.00
spanning-tree portfast edge
!
interface GigabitEthernet1/0/5
switchport access vlan 27
switchport voice vlan 5
storm-control broadcast level 1.00
storm-control multicast level 1.00
spanning-tree portfast edge
!
interface GigabitEthernet1/0/6
switchport access vlan 27
switchport voice vlan 5
storm-control broadcast level 1.00
storm-control multicast level 1.00
spanning-tree portfast edge
!
interface GigabitEthernet1/0/7
switchport access vlan 27
switchport voice vlan 5
storm-control broadcast level 1.00
storm-control multicast level 1.00
spanning-tree portfast edge
!
interface GigabitEthernet1/0/8
switchport access vlan 27
switchport voice vlan 5
storm-control broadcast level 1.00
storm-control multicast level 1.00
spanning-tree portfast edge
!
interface GigabitEthernet1/0/9
switchport access vlan 27
switchport voice vlan 5
storm-control broadcast level 1.00
storm-control multicast level 1.00
spanning-tree portfast edge
!
interface GigabitEthernet1/0/10
switchport access vlan 27
switchport voice vlan 5
storm-control broadcast level 1.00
storm-control multicast level 1.00
spanning-tree portfast edge
!
interface GigabitEthernet1/0/11
switchport access vlan 27
switchport voice vlan 5
storm-control broadcast level 1.00
storm-control multicast level 1.00
spanning-tree portfast edge
!
interface GigabitEthernet1/0/12
switchport access vlan 27
switchport voice vlan 5
storm-control broadcast level 1.00
storm-control multicast level 1.00
spanning-tree portfast edge
!
interface GigabitEthernet1/0/13
switchport access vlan 27
switchport voice vlan 5
storm-control broadcast level 1.00
storm-control multicast level 1.00
spanning-tree portfast edge
!
interface GigabitEthernet1/0/14
switchport access vlan 27
switchport voice vlan 5
storm-control broadcast level 1.00
storm-control multicast level 1.00
spanning-tree portfast edge
!
interface GigabitEthernet1/0/15
switchport access vlan 27
switchport voice vlan 5
storm-control broadcast level 1.00
storm-control multicast level 1.00
spanning-tree portfast edge
!
interface GigabitEthernet1/0/16
switchport access vlan 27
switchport voice vlan 5
storm-control broadcast level 1.00
storm-control multicast level 1.00
spanning-tree portfast edge
!
interface GigabitEthernet1/0/17
switchport access vlan 27
switchport voice vlan 5
storm-control broadcast level 1.00
storm-control multicast level 1.00
spanning-tree portfast edge
!
interface GigabitEthernet1/0/18
switchport access vlan 27
switchport voice vlan 5
storm-control broadcast level 1.00
storm-control multicast level 1.00
spanning-tree portfast edge
!
interface GigabitEthernet1/0/19
switchport access vlan 27
switchport voice vlan 5
storm-control broadcast level 1.00
storm-control multicast level 1.00
spanning-tree portfast edge
!
interface GigabitEthernet1/0/20
switchport access vlan 27
switchport voice vlan 5
storm-control broadcast level 1.00
storm-control multicast level 1.00
spanning-tree portfast edge
!
interface GigabitEthernet1/0/21
switchport access vlan 27
switchport voice vlan 5
storm-control broadcast level 1.00
storm-control multicast level 1.00
spanning-tree portfast edge
!
interface GigabitEthernet1/0/22
switchport access vlan 27
switchport voice vlan 5
storm-control broadcast level 1.00
storm-control multicast level 1.00
spanning-tree portfast edge
!
interface GigabitEthernet1/0/23
switchport mode trunk
!
interface GigabitEthernet1/0/24
switchport mode trunk
!
interface GigabitEthernet1/0/25
switchport mode trunk
!
interface GigabitEthernet1/0/26
switchport mode trunk
!
interface TenGigabitEthernet1/0/1
!
interface TenGigabitEthernet1/0/2
!
interface Vlan1
no ip address
shutdown
!
interface Vlan5
no ip address
!
interface Vlan27
ip address 172.28.128.1 255.255.248.0
!
ip default-gateway 172.28.135.254
!
ip http server
ip http secure-server
!
logging host 172.30.1.100
!
!
snmp-server community iiserbsnmp2k RO
snmp mib flash cache
!
line con 0
line vty 0 4
password 7 0235131A1F054C231A
login
line vty 5 15
login
!
ntp server ntp.iiserb.ac.in
!
end

#sh ip int brief
Interface IP-Address OK? Method Status Protocol
Vlan1 unassigned YES unset administratively down down
Vlan5 unassigned YES unset up up
Vlan27 172.28.128.1 YES manual up up
FastEthernet0 unassigned YES unset administratively down down
GigabitEthernet1/0/1 unassigned YES unset down down
GigabitEthernet1/0/2 unassigned YES unset down down
GigabitEthernet1/0/3 unassigned YES unset down down
GigabitEthernet1/0/4 unassigned YES unset down down
GigabitEthernet1/0/5 unassigned YES unset down down
GigabitEthernet1/0/6 unassigned YES unset down down
GigabitEthernet1/0/7 unassigned YES unset down down
GigabitEthernet1/0/8 unassigned YES unset down down
GigabitEthernet1/0/9 unassigned YES unset down down
GigabitEthernet1/0/10 unassigned YES unset down down
GigabitEthernet1/0/11 unassigned YES unset down down
GigabitEthernet1/0/12 unassigned YES unset down down
GigabitEthernet1/0/13 unassigned YES unset down down
GigabitEthernet1/0/14 unassigned YES unset down down
GigabitEthernet1/0/15 unassigned YES unset down down
GigabitEthernet1/0/16 unassigned YES unset down down
GigabitEthernet1/0/17 unassigned YES unset down down
GigabitEthernet1/0/18 unassigned YES unset down down
GigabitEthernet1/0/19 unassigned YES unset down down
GigabitEthernet1/0/20 unassigned YES unset down down
GigabitEthernet1/0/21 unassigned YES unset down down
GigabitEthernet1/0/22 unassigned YES unset down down
GigabitEthernet1/0/23 unassigned YES unset down down
GigabitEthernet1/0/24 unassigned YES unset up up
GigabitEthernet1/0/25 unassigned YES unset down down
GigabitEthernet1/0/26 unassigned YES unset down down
Te1/0/1 unassigned YES unset down down
Te1/0/2 unassigned YES unset down down

balaji.bandi · ‎10-05-2020

if the switch acting as Layer 2, You have SVI for VLAN 5 located in Core Switch - so shutdown below vlan not required.

config t

!

interface Vlan5
no ip address

shutdown

!

end

BB

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rsthakur · ‎10-05-2020

I am using Cisco IP Telephone, So I want vlan5 for same.

Right Now there is no telephone but in future, some telephone will add on the same switch.

balaji.bandi · ‎10-05-2020

I agree, my question is you do need SVI Layer 3 interface in the switch? or any other switch will handle that VLan5 as gateway ?

if no ports are connected on VLAN 5 you get those errors, once you have devices - you can configure IP address unshut ports.

is this make sense?

BB

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rsthakur · ‎10-05-2020

No, I do not have any need of SVI Layer 3 interface in the switch

rsthakur · ‎10-05-2020

any other switch will handle that VLan5 as gateway ?

Yes Voice Router is handling that vlan5 gateway

balaji.bandi · ‎10-05-2020

2 Options :

1. If your voice VLAN not ready yet shutdown the port as suggested.

2. if Voice Router can act as Gateway for VLAN5 shutdown VLAN SVI interface as suggested. ( so this switch act as only Layer 2.)

3. if switch required and act as VLAN 5 for Layer 3, configure IP address, and you will see that errors (that is normal since no active device in that VLAN available).

BB

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rsthakur · ‎10-05-2020

Yes this switch act as only Layer 2.

How to check VLAN SVI interface enable/disable