SG300 voice vlan problem with UC520

Salvation of the Forumers

My problem statement:

-Secretary referred to topology.png, this is how my network like structure look

-the IP phone after startup can not connect, so it cannot download the XML of UC520 configuration file. problem switching suspects.

-my configuration illustrated in topology.png and my config show vlan as the voice setting.png voice vlan

-My requirement is switch SG300 unique switchport to carry data VLANs and vlan voice.

-What is the mode of connection for voice siwth VLAN an IP phone + data must be set up? is it switchport voice vlan vvid switchport voice vlan dot1p, switchport voice vlan unidentified or vlan switchport voice no further action over requirement?

Thank you

Noel

Christmas morning,

Sorry for the late reply, things have been very hectic in here lately

1. Why use trunk? the UC520 don't have voice vlan (vlan 20)

Do you mean that data THAT VLAN is handled by another device? Again I would like to leave as a trunk in order to manage the CPU through the data VLAN. (Except for security or other reasons you would choose differently of course)

2. the UC520 got CUE (voicemail), how should I design the uplink service for the main switch module?

Nothing in particular needs to be done for this, CUE is processed and routed inside the UC520, the vlan (default ID = 90) CUE is used if you have another LANDMARK in the network

1. I guess I did: swithcport the tag vlan vlan unlabelled 20, 10. is it ok for this setting?

If the Vlan on the switch and the UC520 voice has been defined as VLAN 20 (default value = VLAN 100) it's perfect. Check if the CPU and the switch, the voice VLAN ID is set to 20.

1 so if I have just the phone to vlan 20 (vlan voice), create the policy of network LLDP?

If you are ready to configure the VLANS manually on the phone, you don't need politics LLDP, thats right.

Politics LLDP is used to having phones automatically choose the VLAN you set, so you do not need to set it manually.

I hope that answers your questions?

Best regards

Nico glacier

Senior Network Engineer - CCNA

Tags: Cisco Support

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