Implementing VLANs to deploy Jive Voice provides several network benefits as it groups network users and devices that share common traits.

Benefits of VLAN Implementation

  • Network Segmentation: The network typically runs more efficiently and some LAN issues will stay localized to VLANs.
  • QoS: Can have a unique configuration for a specific VLAN.
  • Policy-Based Routing: Unique policy-based routes can be configured differently on specific VLANs.
  • Gateway Routing: VLANs can be used to route VoIP traffic through the Jive Voice Gateway.

VLAN Settings

There are three methods to assign a Jive Voice Handset to the desired VLAN:

  1. CDP = Cisco Discovery Protocol
  2. LLDP = Link Layer Discovery Protocol
  3. Manual = Manually setting the VLAN ID on the handset

Note: Jive provisions all Jive Voice handsets with the manufacturer’s default VLAN settings. Most vendors have CDP and LLDP enabled by default.

Cisco VLANs

Supports CDP and LLDP.

  • If both CDP and LLDP-MED are enabled, the network policy for the VLAN is determined by the last policy set or changed with either discovery mode.
  • If both LLDP-MED and CDP are enabled, the phone sends both CDP and LLDP-MED PDUs at the same time during startup.

Note: Inconsistent configuration and behavior for network connectivity devices for CDP and LLDP-MED modes could result in an oscillating rebooting behavior for the phone due to switching to different VLANs. If the VLAN is not set via CDP and LLDP-MED, the VLAN ID that is configured manually is used. If the VLAN ID is not configured manually, no VLAN will be supported.

Polycom VLANs

Supports CDP and LLDP.

  • Local Flash (static vlan tag) overrides LLDP
  • LLDP overrides CDP.
  • CDP overrides DHCP VLAN Discovery.

Panasonic VLANs

CDP and LLDP support varies by model.

Phone LLDP Support CDP Support
KX-UT Series X
KX-UTG Series X
KX-TGP 600 X
KX-TGP 500/550

Yealink VLANs

Supports LLDP only.

VTech

Option to enable LLDP in web interface, but does not appear to be enabled by default.

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