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Beginner

SG300 general mode with voice vlan problem after ios upgrade

Hello,

I am having difficulties with SG300 28P after upgrading from 1.3.5.58 (boot image sx300_boot-13506.rfb) to 1.3.7.18 and also 1.4.0.88 (boot image sx300_boot-13506.rfb). On 1.3.5.58 I had configuration that had next configuration:

vlan database
vlan 60,104
exit
voice vlan id 60
voice vlan state oui-enabled

voice vlan oui-table add 0001e3 Siemens_AG_phone________
voice vlan oui-table add 00036b Cisco_phone_____________
voice vlan oui-table add 00096e Avaya___________________
voice vlan oui-table add 000fe2 H3C_Aolynk______________
voice vlan oui-table add 0060b9 Philips_and_NEC_AG_phone
voice vlan oui-table add 00809f Alcatel_IP_Phone
voice vlan oui-table add 00d01e Pingtel_phone___________
voice vlan oui-table add 00e075 Polycom/Veritel_phone___
voice vlan oui-table add 00e0bb 3Com_phone______________

 

interface gigabitethernet 1 - 24
 switchport mode general
 switchport general allowed vlan add 104 untagged
 switchport general pvid 104
 voice vlan enable

interface gigabitethernet27
 description UPLINK
 switchport trunk allowed vlan add 60,104

macro auto disabled

 

This configuration worked perfectly when I switched over cable from PC to VoIP telephone and vice versa. PC fell into 104 vlan and VoIP phone fell into 60 VLAN without problems every time I switched from one to another the same cable.

The problem started when I upgraded to the following ios versions 1.3.7.18 and 1.4.0.88. When I switch cable in PC I get IP configuration from DHCP server from vlan 104 and when I switch the same cable in VoIP phone it takes IP configuration from VoIP DHCP server on vlan 60. But when I switch back the same cable to PC I don't get DHCP configuration from DHCP server from vlan 104. This function was available in version 1.3.5.58. In newer versions it is not available for same general port to share different vlans when voice vlan is enabled. I tried with putting that port in trunk mode and it works but this is not solution for our company because this would not have voice vlan enabled, it would be more statical configuration.

Can you tell me is this a bug in new versions or did the configuration for general mode with voice vlan changed in some way?

 

Everyone's tags (3)
2 REPLIES 2
Cisco Employee

Hi,Unfortunately there is a

Hi,

Unfortunately there is a change and this behavior will be corrected in the next release. In the meantime you may try the following workarounds:

1.

1) Disable Voice VLAN on port

2) Toggle port status (link down and then up)

3) Enable Voice VLAN on port once again

2. or use 1.3.5 firmware

Please feel free to open ticket with Small Business Team if you would like to get some information or share some comments.

Regards,

Aleksandra

 

Beginner

Hello,Thank you for response

Hello,

Thank you for response and for your help. I suspected it is a bug. I just wanted to be sure and check with others. Unfortunately we won't upgrade to later version than 1.3.5 until Cisco fixes this problem.  

Best regards,

Aleks