Huawei IAD108A User Manual page 148

User Manual
U-SYS IAD108 Integrated Access Device
The upstream voice stream is first coded at the DSP, then
transformed into voice packets at the CPU, and finally transmitted to
the IP network through port 1 of the LAN Switch chip.
The upstream data stream is accessed through ports 2–3, and
then transmitted to the IP network through port 1, without being
processed at the CPU. Therefore, only voice packets can be
configured with VLAN tag and precedence.
Voice flow
Figure 5-2 Flow chart of voice/data stream in the LAN Switch chip
II.
Related Commands
Table 5-6 lists the related commands.
Table 5-6 Related commands
Operation
Enable the VLAN tag function
DSP
LAN Switch chip
2
1
IAD2000(config)#tag { enable | disable }
5-11
Chapter 5 Advanced
CPU
9
6
Data flow
Command
Configuration