Hello all,
I am attempting to hook up a Cisco 7940 IP Phone to a Dell PowerConnect 6248 on Voice VLAN 200.
Per a previous thread and research, I moved the management VLAN to 10 so that VLAN 1 is routable and added VLAN 200. I enabled the Voice VLAN globally in the config and initially tested the IP Phone hooked up to port 5/g42. Everything worked as intended, the phone booted to Operational VLAN 200 and pulled a DHCP IP address from the correct pool.
Now I am trying to deploy 20 IP Phones into the environment on ports 4/g5 - 4/g24. I hooked up one IP phone to 4/g24 and it registered as intended. I hooked up the next phone to 4/g23 and it registered, but port 4/g24 lost its configuration. I continued hooking up another IP Phone to 4/g22 and 4/g23 and 4/g24 lost their configurations.
Trying to reboot the phone does not work. Unplugging it and plugging it back in to force the boot does not work. The phone will not get the VLAN information anymore.
Strangely, I have a phone hooked up to 5/g13 and it is still working, and 4/g17 (the last phone I hooked up) is still registered.
In the Cisco 7940 phone menu, hard coding the VLAN ID allows the phone to register - cool as a workaround, but if we lose power, I don't want to have to reconfigure all the phones.
Here is my current switch config:
!Current Configuration:
!System Description "PowerConnect 6248, 3.3.8.2, VxWorks 6.5"
!System Software Version 3.3.8.2
!Cut-through mode is configured as disabled
!
configure
vlan database
vlan 10,200
vlan routing 200 1
vlan routing 1 2
exit
stack
member 1 2
member 2 2
member 3 2
member 4 2
member 5 2
exit
ip address none
ip address vlan 10
interface vlan 1
routing
ip address 172.16.4.253 255.255.255.0
exit
interface vlan 10
name "Management"
exit
interface vlan 200
name "INT IP Voice"
routing
ip address 172.16.5.253 255.255.255.0
exit
voice vlan
!
interface ethernet 4/g5
switchport mode general
switchport general allowed vlan add 200 tagged
voice vlan 200
exit
!
interface ethernet 4/g6
switchport mode general
switchport general allowed vlan add 200 tagged
voice vlan 200
exit
!
interface ethernet 4/g7
switchport mode general
switchport general allowed vlan add 200 tagged
voice vlan 200
exit
!
interface ethernet 4/g8
switchport mode general
switchport general allowed vlan add 200 tagged
voice vlan 200
exit
!
interface ethernet 4/g9
switchport mode general
switchport general allowed vlan add 200 tagged
voice vlan 200
exit
!
interface ethernet 4/g10
switchport mode general
switchport general allowed vlan add 200 tagged
voice vlan 200
exit
!
interface ethernet 4/g11
switchport mode general
switchport general allowed vlan add 200 tagged
voice vlan 200
exit
!
interface ethernet 4/g12
switchport mode general
switchport general allowed vlan add 200 tagged
voice vlan 200
exit
!
interface ethernet 4/g13
switchport mode general
switchport general allowed vlan add 200 tagged
voice vlan 200
exit
!
interface ethernet 4/g14
switchport mode general
switchport general allowed vlan add 200 tagged
voice vlan 200
exit
!
interface ethernet 4/g15
switchport mode general
switchport general allowed vlan add 200 tagged
voice vlan 200
exit
!
interface ethernet 4/g16
switchport mode general
switchport general allowed vlan add 200 tagged
voice vlan 200
exit
!
interface ethernet 4/g17
switchport mode general
switchport general allowed vlan add 200 tagged
voice vlan 200
exit
!
interface ethernet 4/g18
switchport mode general
switchport general allowed vlan add 200 tagged
voice vlan 200
exit
!
interface ethernet 4/g19
switchport mode general
switchport general allowed vlan add 200 tagged
voice vlan 200
exit
!
interface ethernet 4/g20
witchport mode general
switchport general allowed vlan add 200 tagged
voice vlan 200
exit
!
interface ethernet 4/g21
switchport mode general
switchport general allowed vlan add 200 tagged
voice vlan 200
exit
!
interface ethernet 4/g22
switchport mode general
switchport general allowed vlan add 200 tagged
voice vlan 200
exit
!
interface ethernet 4/g23
switchport mode general
switchport general allowed vlan add 200 tagged
voice vlan 200
exit
!
interface ethernet 4/g24
switchport mode general
switchport general allowed vlan add 200 tagged
voice vlan 200
exit
!
interface ethernet 5/g13
switchport mode general
switchport general allowed vlan add 200 tagged
voice vlan 200
exit
!
interface ethernet 5/g42
switchport mode general
switchport general allowed vlan add 200 tagged
voice vlan 200
exit
!
interface ethernet 5/g48
switchport mode general
switchport general allowed vlan add 200 tagged
switchport general allowed vlan add 1 tagged
exit
exit
Any ideas would be much appreciated.