Usage Scenario
VLAN Plan
VLAN Translation Policy
Single-tagged VLAN
ONU: Configure a VLAN for all ONUs
and add the same C-VLAN tag to
packets. All ONUs are in the same C-
VLAN.
OLT: The OLT switches between the C-
VLAN tag and the S-VLAN tag (the C-
VLAN is different from the planned S-
VLAN).
Note:
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UserVLAN: VLAN carried by upstream packets of user-side devices, U for short.
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C-VLAN: VLAN added based on the ONU port. For details, see the description of the
Double-tagged VLAN S+C.
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Double-tagged VLAN S+C: C indicates the inner VLAN (C-VLAN) and S indicates the
outer VLAN (S-VLAN).
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Double-layer VLAN S+C': C' indicates the translated inner VLAN (C'-VLAN) and S
indicates the outer VLAN (SVLAN).
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Single-tagged S-VLAN: Single-tagged VLAN marked or translated by the OLT. It is
generally used in a single-tagged VLAN translation scenario.
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C<->S+C': Bidirectional VLAN translation: translates the inner C-VLAN and then adds
one outer S-VLAN.
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C<->S+C: Bidirectional VLAN translation: maintains the inner C-VLAN and adds one
outer S-VLAN.
NOTE
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The VoIP service is a closed service self-operated by carriers. The single-tagged S-VLAN is the mainstream
application and is recommended.
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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.
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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
SmartAX MA5600T/MA5603T/MA5608T Multi-service
Access Module
Commissioning and Configuration Guide
12 FTTO Configuration(SOHO and SME)
Issue 01 (2014-04-30)
Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
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