Operation Manual

AT-RG213 Residential VoIP Gateway - SIP Software Reference Manual
SIP Software Release 6-0-0
J613-M0524-00
82
Figure 23. The VLAN field in the Ethernet file
16
bit
s
Type/
Length
User
Priority
0 x81-00 CFI
12 bits
64 bits
Preamble
Destination
Address
Source
Address
48 bits 48 bits 368 - 12000
32 bits
Frame Data CRC
VID
16 bits
3 bits
1
bits
Switch architecture
The integrated Switch relays Ethernet packets among the three LAN ports
(lan1, lan2 and lan3), WAN port (wan) and VoIP subsystem port (voip), as
shown in Figure 24.
Figure 24. Switch architecture
RG203
lan1 lan3lan2
wan
VoIP
Subsystem
voip
For each port it’s possible to enable 802.1P/Q Tag insertion/stripping and
two receive queues (high and low priority).
Each 802.1Q user priority value can be defined as HIGH and LOW priority.
Tagged based VLAN are supported