LLDP

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Warning: Do not follow this guide unless you know for certain you need LLDP. Incorrectly implementing this protocol MAY lead to undesired network functionality.

This guide applies to Cisco switches, and the screenshots are specifically from a SG300 28 port switch. Some options may be named differently, or not exist at all on other brands of network equipment.


Contents

In the switch:

LLDP Status: Enabled

TLV Advertise Interval: 60

File:Lldp-properties.PNG



LLDP MED Network Policy

Create 2 policies as follows

Application Voice, VLAN ID 2, VLAN Tagged

Application Voice Signaling, VLAN ID 2, VLAN Tagged

File:Lldp-med-policies.PNG


 

LLDP MED Port Settings

Add Voice and Voice signaling applications to desired ports

File:Lldp-med-port-settings.PNG 


VLAN Management=>Voice VLAN=>Properties

Dynamic Voice VLAN: Disabled

File:Voice-vlan-properties.PNG

Create VLAN: VlanID 2, name Voice

File:Vlan-create.PNG

 

Port to VLAN

Set desired ports for voice traffic (any port that will have a phone plugged in, plus the port that will handle voice dhcp, if needed), to VLAN 2: Tagged

File:Vlan-port-to-vlan.PNG


In the PBX

Ensure all phones have LLDP enabled.  You can set this on each phone individually in the menu under Settings=>Advanced=>Network=>LLDP, but we would recommend following the instructions listed at http://wiki.ipitomy.com/wiki/HD_Phone_FAQ#How_do_I_Enabled_LLDP_Globally_for_the_Phones to set LLDP globally if you need it for all phones.


Helpful Links

Virtual Local Area Networks (VLANs)

http://www.practicalnetworking.net/stand-alone/vlans/

All Credit and Thanks go to networking guru Ed Harmoush at Practical Networking

Routing Between VLANs

http://www.practicalnetworking.net/stand-alone/routing-between-vlans/

All Credit and Thanks go to networking guru Ed Harmoush at Practical Networking

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