OS6450-P24 stopped tagging Voice VLAN

[contender122]

We have alot of OS6450-P24 deployed supporting Cisco phones. There are about 40 sites that are using Alcatel OS6540-P24. The phone loses it's registration to the Call Manager, since the option 150 isn't in the DHCP for the data pool.

When I trace the MAC address, I notice that the phone is on the data VLAN not the Voice VLAN. I have reset the NI and it has then tagged VLAN 6 to the phones. This process restores about 75% of the phones on the Voice VLAN. I went to the extreme to reload the entire stack topology and that didn't let the switch tag the Voice VLAN.

From one of the switch configuration:
! Configuration:
! VLAN :
vlan 2 port default 1/1
vlan 8 port default 1/7
! 802.1Q :
vlan 6 802.1q 1/1 "TAG PORT 1/1 VLAN 6"
vlan 6 802.1q 1/7 "TAG PORT 1/7 VLAN 6"

8748_IDF_2_1> show 802.1q 1/7
Acceptable Frame Type : Any Frame Type
Force Tag Internal : NA
Tagged VLANS Internal Description
-------------+------------------------------------------+
6 TAG PORT 1/7 VLAN 6

8748_IDF_2_1> show mac-address-table 1/7
Legend: Mac Address: * = address not valid

Vlan Mac Address Type Protocol Operation Interface
------+-------------------+--------------+-----------+------------+-----------
8 e0:4f:43:22:9e:41 learned --- bridging 1/7
8 f8:a5:c5:b3:29:84 learned --- bridging 1/7

Total number of Valid MAC addresses above = 2

8748_IDF_2_1>

VLAN 6 is being tagged on the same switch different port:
8748_IDF_2_1> show mac-address-table 1/1
Legend: Mac Address: * = address not valid

Vlan Mac Address Type Protocol Operation Interface
------+-------------------+--------------+-----------+------------+-----------
2 8c:dc:d4:37:20:db learned --- bridging 1/1
2 f8:a5:c5:b3:26:36 learned --- bridging 1/1
6 f8:a5:c5:b3:26:36 learned --- bridging 1/1

Total number of Valid MAC addresses above = 3

8748_IDF_2_1> show 802.1q 1/1

Acceptable Frame Type : Any Frame Type
Force Tag Internal : NA
Tagged VLANS Internal Description
-------------+------------------------------------------+
6 TAG PORT 1/1 VLAN 6

8748_IDF_2_1>

I admin down the interface and stopped the LANPOWER and restarted on 1/7 to no avail.

Any suggestions?

Thanks
Luis

[silvio]

I haven't fully understand your problem. How learn the cisco phones to tag within vlan 6? Is this a static config direct at the phones or via LLDP-MED or via a dhcp-option? Option 150 is for connecting to the tftp (call manager?).
If the phones are tagging with vlan 6 than your config should work:

Code: Select all

vlan 6 802.1q 1/1 
vlan 6 802.1q 1/7

I prefer the following config for all the ports where tagged phones can be connected:

Code: Select all

vlan port mobile 1/1-24
vlan 6 mobile-tag enable

Other way is to use untagged phones (phones didn't know about the voice vlan).
Here the config if the vendor mac of the phones is f8:a5:c5:

Code: Select all

vlan port mobile 1/1-24
vlan 6  mac range f8:a5:c5:00:00:00 f8:a5:c5:ff:ff:ff  

But you should use only one of this both methods.

regards
Silvio

[contender122]

The voice vlan isn't being tagged to the phone.

8664_IDF_A_1_1> show configuration snapshot
! Stack Manager :
! Chassis :
system name 8664_IDF_A_1_1
system contact U0880594
system location "ADMIN BLDG 1ST CUSTODIAN RM"
system timezone PST
system daylight savings time enable
! Configuration:
! VLAN :
vlan 1 enable name "Management"
vlan 2 enable name "Administration"
vlan 2 port default 1/1
vlan 2 port default 1/2
vlan 2 port default 1/3
vlan 2 port default 1/4
vlan 2 port default 1/5
vlan 2 port default 1/6
vlan 2 port default 1/7
vlan 2 port default 1/9
vlan 2 port default 1/10
vlan 2 port default 1/11
vlan 2 port default 1/12
vlan 2 port default 1/13
vlan 2 port default 1/14
vlan 2 port default 1/15
vlan 2 port default 1/16
vlan 2 port default 1/17
vlan 2 port default 1/18
vlan 2 port default 1/19
vlan 2 port default 1/20
vlan 2 port default 1/21
vlan 2 port default 1/22
vlan 2 port default 1/23
vlan 2 port default 1/24
vlan 2 port default 2/1
vlan 2 port default 2/2
vlan 2 port default 2/3
vlan 2 port default 2/4
vlan 2 port default 2/5
vlan 2 port default 2/6
vlan 2 port default 2/7
vlan 2 port default 2/8
vlan 2 port default 2/9
vlan 2 port default 2/10
vlan 2 port default 2/11
vlan 2 port default 2/12
vlan 2 port default 2/13
vlan 2 port default 2/14
vlan 2 port default 2/15
vlan 2 port default 2/16
vlan 2 port default 2/17
vlan 2 port default 2/18
vlan 2 port default 2/19
vlan 2 port default 2/20
vlan 2 port default 2/21
vlan 2 port default 2/22
vlan 2 port default 2/23
vlan 2 port default 2/24
vlan 2 port default 3/1
vlan 2 port default 3/2
vlan 2 port default 3/3
vlan 2 port default 3/4
vlan 2 port default 3/5
vlan 2 port default 3/6
vlan 2 port default 3/7
vlan 2 port default 3/8
vlan 2 port default 3/9
vlan 2 port default 3/10
vlan 2 port default 3/11
vlan 2 port default 3/12
vlan 2 port default 3/13
vlan 2 port default 3/14
vlan 2 port default 3/15
vlan 2 port default 3/16
vlan 2 port default 3/17
vlan 2 port default 3/18
vlan 2 port default 3/19
vlan 2 port default 3/20
vlan 2 port default 3/21
vlan 2 port default 3/22
vlan 2 port default 3/23
vlan 2 port default 3/24
vlan 6 enable name "voice"
vlan 8 enable name "Instructional"
vlan 8 port default 1/8
! VLAN SL:
! IP :
ip service ftp
ip service ssh
ip service telnet
ip service udp-relay
no ip service http
ip service network-time
ip service snmp
no ip service secure-http
ip interface "MANAGEMENT VLAN" address 10.50.32.13 mask 255.255.254.0 vlan 1 ifindex 1
! IPMS :
! AAA :
aaa tacacs command-authorization enable
user password-size min 7
! PARTM :
! 802.1x :
! QOS :
qos trust ports
policy network group snmp-ro-group 10.0.4.0 mask 255.255.255.0 10.1.41.0 mask 255.255.255.0 10.10.4.0 mask 255.255.255.
0 10.20.73.0 mask 255.255.255.0
policy network group snmp-rw-group 10.0.4.0 mask 255.255.255.0 10.10.4.0 mask 255.255.255.0
policy condition c-snmp-drop-all source ip Any destination network group Switch destination udp port 161
policy condition c-snmp-ro-group source network group snmp-ro-group destination network group Switch destination udp por
t 161
policy condition c-snmp-rw-group source network group snmp-rw-group destination network group Switch destination udp por
t 161
policy action allow
policy action allow-no-cache no-cache
policy action drop disposition drop
policy action drop-no-cache disposition drop no-cache
policy rule r-snmp-ro-group-allow precedence 1010 condition c-snmp-ro-group action allow-no-cache
policy rule r-snmp-rw-group-allow precedence 1000 condition c-snmp-rw-group action allow-no-cache
policy rule r-snmp-drop-all precedence 900 condition c-snmp-drop-all action drop-no-cache
qos apply
! Policy manager :
! Session manager :
session prompt default "8664_IDF_A_1_1>"
! SNMP :
snmp security no security
snmp community map "scro4tech" user "scro4tech" on
snmp community map "scrw152" user "scrw152" on
! RIP :
! IPv6 :
! IP multicast :
! IPRM :
ip static-route 0.0.0.0/0 gateway 10.50.32.1 metric 1
! RIPng :
! Health monitor :
health threshold temperature 78
! Interface :
interfaces 1/26 alias "UPLINK to MDF_A"
! Udld :
! Port Mapping :
! Link Aggregate :
! VLAN AGG:
! 802.1Q :
vlan 6 802.1q 1/1 "TAG PORT 1/1 VLAN 6"
vlan 6 802.1q 1/2 "TAG PORT 1/2 VLAN 6"
vlan 6 802.1q 1/3 "TAG PORT 1/3 VLAN 6"
vlan 6 802.1q 1/4 "TAG PORT 1/4 VLAN 6"
vlan 6 802.1q 1/5 "TAG PORT 1/5 VLAN 6"
vlan 6 802.1q 1/6 "TAG PORT 1/6 VLAN 6"
vlan 6 802.1q 1/7 "TAG PORT 1/7 VLAN 6"
vlan 6 802.1q 1/8 "TAG PORT 1/8 VLAN 6"
vlan 6 802.1q 1/9 "TAG PORT 1/9 VLAN 6"
vlan 6 802.1q 1/10 "TAG PORT 1/10 VLAN 6"
vlan 6 802.1q 1/11 "TAG PORT 1/11 VLAN 6"
vlan 6 802.1q 1/12 "TAG PORT 1/12 VLAN 6"
vlan 6 802.1q 1/13 "TAG PORT 1/13 VLAN 6"
vlan 6 802.1q 1/14 "TAG PORT 1/14 VLAN 6"
vlan 6 802.1q 1/15 "TAG PORT 1/15 VLAN 6"
vlan 6 802.1q 1/16 "TAG PORT 1/16 VLAN 6"
vlan 6 802.1q 1/17 "TAG PORT 1/17 VLAN 6"
vlan 6 802.1q 1/18 "TAG PORT 1/18 VLAN 6"
vlan 6 802.1q 1/19 "TAG PORT 1/19 VLAN 6"
vlan 6 802.1q 1/20 "TAG PORT 1/20 VLAN 6"
vlan 6 802.1q 1/21 "TAG PORT 1/21 VLAN 6"
vlan 6 802.1q 1/22 "TAG PORT 1/22 VLAN 6"
vlan 6 802.1q 1/23 "TAG PORT 1/23 VLAN 6"
vlan 6 802.1q 1/24 "TAG PORT 1/24 VLAN 6"
vlan 2 802.1q 1/25 "TAG PORT 1/25 VLAN 2"
vlan 6 802.1q 1/25 "TAG PORT 1/25 VLAN 6"
vlan 8 802.1q 1/25 "TAG PORT 1/25 VLAN 8"
vlan 2 802.1q 1/26 "TAG PORT 1/26 VLAN 2"
vlan 6 802.1q 1/26 "TAG PORT 1/26 VLAN 6"
vlan 8 802.1q 1/26 "TAG PORT 1/26 VLAN 8"
vlan 6 802.1q 2/1 "TAG PORT 2/7 VLAN 6"
vlan 6 802.1q 2/2 "TAG PORT 2/7 VLAN 6"
vlan 6 802.1q 2/3 "TAG PORT 2/7 VLAN 6"
vlan 6 802.1q 2/4 "TAG PORT 2/7 VLAN 6"
vlan 6 802.1q 2/5 "TAG PORT 2/7 VLAN 6"
vlan 6 802.1q 2/6 "TAG PORT 2/7 VLAN 6"
vlan 6 802.1q 2/7 "TAG PORT 2/7 VLAN 6"
vlan 6 802.1q 2/8 "TAG PORT 2/8 VLAN 6"
vlan 6 802.1q 2/9 "TAG PORT 2/12 VLAN 6"
vlan 6 802.1q 2/10 "TAG PORT 2/12 VLAN 6"
vlan 6 802.1q 2/11 "TAG PORT 2/12 VLAN 6"
vlan 6 802.1q 2/12 "TAG PORT 2/12 VLAN 6"
vlan 6 802.1q 2/13 "TAG PORT 2/13 VLAN 6"
vlan 6 802.1q 2/14 "TAG PORT 2/14 VLAN 6"
vlan 6 802.1q 2/15 "TAG PORT 2/16 VLAN 6"
vlan 6 802.1q 2/16 "TAG PORT 2/16 VLAN 6"
vlan 6 802.1q 2/17 "TAG PORT 2/17 VLAN 6"
vlan 6 802.1q 2/18 "TAG PORT 2/24 VLAN 6"
vlan 6 802.1q 2/19 "TAG PORT 2/24 VLAN 6"
vlan 6 802.1q 2/20 "TAG PORT 2/24 VLAN 6"
vlan 6 802.1q 2/21 "TAG PORT 2/24 VLAN 6"
vlan 6 802.1q 2/22 "TAG PORT 2/24 VLAN 6"
vlan 6 802.1q 2/23 "TAG PORT 2/24 VLAN 6"
vlan 6 802.1q 2/24 "TAG PORT 2/24 VLAN 6"
vlan 6 802.1q 3/1 "TAG PORT 3/1 VLAN 6"
vlan 6 802.1q 3/2 "TAG PORT 3/2 VLAN 6"
vlan 6 802.1q 3/3 "TAG PORT 3/3 VLAN 6"
vlan 6 802.1q 3/4 "TAG PORT 3/4 VLAN 6"
vlan 6 802.1q 3/5 "TAG PORT 3/5 VLAN 6"
vlan 6 802.1q 3/6 "TAG PORT 3/6 VLAN 6"
vlan 6 802.1q 3/9 "TAG PORT 3/9 VLAN 6"
vlan 6 802.1q 3/10 "TAG PORT 3/10 VLAN 6"
vlan 6 802.1q 3/11 "TAG PORT 3/11 VLAN 6"
vlan 6 802.1q 3/12 "TAG PORT 3/12 VLAN 6"
vlan 6 802.1q 3/13 "TAG PORT 3/13 VLAN 6"
vlan 6 802.1q 3/14 "TAG PORT 3/14 VLAN 6"
vlan 6 802.1q 3/15 "TAG PORT 3/15 VLAN 6"
vlan 6 802.1q 3/17 "TAG PORT 3/17 VLAN 6"
vlan 6 802.1q 3/18 "TAG PORT 3/18 VLAN 6"
vlan 6 802.1q 3/19 "TAG PORT 3/19 VLAN 6"
vlan 6 802.1q 3/20 "TAG PORT 3/20 VLAN 6"
vlan 6 802.1q 3/21 "TAG PORT 3/21 VLAN 6"
vlan 6 802.1q 3/22 "TAG PORT 3/22 VLAN 6"
vlan 6 802.1q 3/23 "TAG PORT 3/23 VLAN 6"
vlan 6 802.1q 3/24 "TAG PORT 3/24 VLAN 6"
! Spanning tree :
bridge mode 1x1
! Bridging :
! Bridging :
! Port mirroring :
! UDP Relay :
! System service :
ip name-server 10.8.21.34
ip domain-name lausd.net
swlog console level info
usb enable
! SSH :
! VRRP :
! Web :
! AMAP :
! Lan Power :
! NTP :
ntp server 10.0.3.1 key 0 version 4 minpoll 6
ntp client enable
! RDP :
! VLAN STACKING:
! EFM-OAM :
! SAA :
! Loopback-detection :
! ERP :
! TEST-OAM :
! DHL :
! LLDP :
lldp network-policy 1 application voice vlan 6 l2-priority 5 dscp 46
lldp 1 notification enable
lldp 1 tlv management port-description enable system-name enable
lldp 1 tlv management management-address enable
lldp chassis tlv med network-policy enable
lldp chassis med network-policy 1
! DHCP Server :
! Stack Split-Protection Helper :
! Openflow :
! DHCPv6 :
! TWAMP :
8664_IDF_A_1_1>


Initially the switch wasn’t passing VLAN 6:
8664_IDF_A_1_1> show mac-address-table f8:a5:c5:b3:7c:c4
Vlan Mac Address Type Protocol Operation Interface
------+-------------------+--------------+-----------+------------+-----------
2 f8:a5:c5:b3:7c:c4 learned --- bridging 2/17

I checked the VLAN and VLAN Tagging:
! Configuration:
! VLAN :
vlan 2 port default 2/17

! VLAN AGG:
! 802.1Q :
vlan 6 802.1q 2/17 "TAG PORT 2/8 VLAN 6"

I checked how many switches were stacked:
8664_IDF_A_1_1> show module
HW Mfg
Slot Part-Number Serial # Rev Date Model Name
------------+--------------+---------------+---+--------------------+-------------------------
CMM-1 903778-90 U0880594 04 FEB 18 2016 OS6450-P24
CMM-2 903778-90 T5285354 01 DEC 29 2015 OS6450-P24
NI-1 903778-90 U0880594 04 FEB 18 2016 OS6450-P24
NI-2 903778-90 T5285354 01 DEC 29 2015 OS6450-P24
NI-3 903778-90 T5380183 01 DEC 30 2015 OS6450-P24
8664_IDF_A_1_1>

I reloaded switch 2:
8664_IDF_A_1_1> reload ni 2

After the reload check if VLAN 6 is being tagged to the phone:
8664_IDF_A_1_1> show mac-address-table f8:a5:c5:b3:7c:c4
Legend: Mac Address: * = address not valid

Vlan Mac Address Type Protocol Operation Interface
------+-------------------+--------------+-----------+------------+-----------
2 f8:a5:c5:b3:7c:c4 learned --- bridging 2/17
6 f8:a5:c5:b3:7c:c4 learned --- bridging 2/17

Total number of Valid MAC addresses above = 2

8664_IDF_A_1_1>

The NI reload or a reload all works sometimes.

Attached is the result for a switch where the reload didn't work. We reloaded that it a few times.
8748_IDF_1_3_1> show mac-address-table f8:a5:c5:b3:24:95
Vlan Mac Address Type Protocol Operation Interface
------+-------------------+--------------+-----------+------------+-----------
8 f8:a5:c5:b3:24:95 learned --- bridging 2/3
8748_IDF_1_3_1>

Thanks
Luis

[silvio]

with your lldp-med config your phones learn about the vlan 6 tag. And all your ports are in vlan 6 staticly tagged (not my prefered config). So it seems to me that maybe some of your phones has the problem with lldp - that they don't learn the vlan id. So check direct at the phones about the vlan. Test with static configured vlan direct in the phone.
I have never heard that the switch has this issue (not passing a vlan). Have you an actual firmware within the switches?
regards
Silvio