R2511-HP MSR Router Series Layer 2 - LAN Switching Configuration Guide(V5)

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Step Command Remarks
1. Enter system view.
system-view N/A
2. Enter Ethernet interface
view or port group view.
• Enter Layer 2/Layer 3 Ethernet interface
view:
interface interface-type interface-number
• Enter port group view:
port-group manual port-group-name
Use either command.
3. Set the encapsulation
format for LLDPDUs to
SNAP.
lldp encapsulation snap
By default, Ethernet II
encapsulation format
applies.
Configuring LLDP to advertise a specific voice
VLAN
Voice VLAN advertisement through LLDP is available only for LLDP-enabled IP phones.
By default, if the voice VLAN feature is configured on an LLDP-enabled port, LLDP advertises this voice
VLAN to the IP phone connected to the port. In this case, the device learns MAC addresses complying
with the Organizationally Unique Identifier (OUI) address by software to the voice VLAN and improves
the priority of the voice traffic.
This feature allows you to specify the voice VLAN information that LLDP will advertise to IP phones
through network policy TLVs. In this case, the device learns MAC addresses by hardware.
LLDP advertises the following voice VLANs in descending order of priority: VLAN ID specified for LLDP
advertisement, authentication server-assigned VLAN ID, voice VLAN configured on the port, and the
default VLAN 0.
For more information about voice VLANs, see "Configuring a voice VLAN."
Figure 39 sh
ows the procedure of voice VLAN advertisement through LLDP.
Figure 39 Voice VLAN advertisement through LLDP
With the received voice VLAN information, the IP phone automatically completes the voice VLAN
configuration, including the voice VLAN ID, tagging status, and priority. This voice VLAN can be the