VLAN and VLAN Translation Policy.
Application
Scenario
VLAN Plan VLAN Translation Policy
Bridging + Voice
ONU
Single-tagged VLAN ONU: ONUs provide the VoIP service
and use the same S-VLAN.
Double-tagged VLAN ONU: ONUs provide the VoIP service
and use the same C-VLAN. The C-
VLAN identifies the VoIP service.
OLT: The OLT adds S-VLANs to
packets. The C-VLAN is translated to S-
VLAN+C-VLAN.
Bridging ONU +
HGW
Single-tagged VLAN ONU: transparently transmits the user
VLAN tags carried in the upstream
packets sent from the HGW.
OLT: translates user VLAN tags to S-
VLAN tags.
Double-tagged VLAN ONU: transparently transmits the user
VLAN tags carried in the upstream
packets sent from the HGW.
OLT: translates the user VLAN tags to S-
VLAN+C-VLAN tags.
NOTE
l The VoIP service is a closed service self-operated by carriers. The single-tagged S-VLAN is the mainstream
application and is recommended.
l When the planned VLAN is single-tagged VLAN, the S-VLAN can identify services and physical locations
based on an OLT device, a PON board or a PON port. It is recommended that you set different voice VLANs
for the OLTs connected to one VoIP SR to avoid an excessively large broadcast domain of the SR and
convergence switch.
l When the planned VLAN is S-VLAN+C-VLAN, the outer S-VLAN can identify services and physical
locations based on an OLT device, a PON board or a PON port. The inner C-VLAN is used to identify
services (the fixed value) and users.
VoIP Data Plan Based on H.248 or SIP
Item Description
MG
interface/
SIP
interface
data
Media
and
signalin
g
paramet
ers
Media and
signaling upstream
VLANs
Upstream VLANs of the VoIP service
Media and
signaling uplink
port
Uplink ports of the VoIP service
SmartAX MA5600T/MA5603T/MA5608T Multi-service
Access Module
Commissioning and Configuration Guide 10 FTTD Configuration
Issue 01 (2014-04-30) Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
736
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