Alcatel-Lucent OmniSwitch AOS Release 7 Manual page 222

802.1AB Overview
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Soft phone voice
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Video Conferencing
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Streaming voice
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Video Signaling
LLDP-MED Network Policy for VLAN Advertisement
The following provisions are provided in the OmniSwitch AOS to assign LLDP-MED network policy for
VLAN advertisement:
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The OmniSwitch AOS allows the configuration of a maximum of 32 network policy IDs.
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Each network policy identifier (ID) must be configured with an application type and VLAN-ID as
mandatory parameters. Other parameters include L2 priority and DSCP.
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Upto 8 network policy IDs; one per each application type; can be configured for a given port.
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Two or more network policy IDs with the same application type can not be assigned to a port.
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When any MED connects to a port with an explicit MED network policy configuration, the
OmniSwitch advertises the policy in the LLDPDU along with the MED Network Policy TLVs. This
advertisement occurs only if the transmission of the Network Policy TLV is enabled by the user. The
Media Endpoint Device must configure itself according to the advertised policy.
Fast Restart of LLDP on Detection of MED
The Fast Restart (as described in IEEE 802.1ab rev) is implemented on the OmniSwitch to transmit the
related LLDP-MED Network Policy TLV as soon as a new MED endpoint is detected. The MED TLVs
are encapsulated in the LLDPDU. The transmission of LLDP-MED TLV starts only when the OmniSwitch
detects a MED capable endpoint on the VLAN port.
LLDP-MED for IP Phones
The LLDP-MED feature on OmniSwitch for voice transmission and VoIP Phones provides a network
friendly solution. The information received from and transmitted to IP phones is tagged with voice VLAN
ID.
A VLAN can be explicitly assigned to IP Phones through explicit definition of an LLDP-MED network
policy identifier. The LLDP-MED Network Policy for the voice and voice signalling application must be
activated on the OmniSwitch to advertise the VLAN to the connected IP Phones. For example on how to
setup LLDP-MED for IP Phones, see
page 10-8
"Enabling and Disabling Notification" on page 10-10
OmniSwitch AOS Release 7 Network Configuration Guide
Configuring 802.1AB
March 2011