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Page 41 / 91 Scroll up to view Page 36 - 40
41
Port End:
Specify the ending TCP port number from 0 to 65535.
NOTE:
The range of starting and ending TCP port number should not be over 255.
Otherwise, an error message will pop-up when you click
“
Submit
”
button.
Reserve BW:
Specify reserved bandwidth for each queue (Queue-0 ~ Queue3).
2.6.2.2 Ingress Bandwidth Setting
This section describes how to setup the ingress bandwidth for Port 1 ~ 4 and WAN port.
Enabler:
Disable or enable bandwidth control function for Port 1 ~ 4 and WAN port.
Bandwidth:
Specify bandwidth for each port (Port 1~4 and WAN port).
2.6.3 Configure VLAN
Select
Configure VLAN
from the
Switch Management
menu,
then
Configure VLAN
screen page appears.
Default VLAN VID:
Specify a default VID number (1~4095) to each port.
Ingress Double Tag:
Enable or disable
“
Ingress Double Tag
”
function. When enabled,
ingress traffic is added with a PVID. The Residential Gateway supports Q-in-Q (Double tag
tunneling) for security via robust isolation of customer traffic and unburdening the service
provider from configuration management of CPE.
Page 42 / 91
42
VLAN Forwarding Table
VID:
Specify a VID for new VLAN rule.
NOTE:
By default, there are two VLANs in the VLAN Forwarding table; VLAN 1 is for
WAN, VLAN 2 is for LAN. When you select your desired
“
NAT/Bridge Mode
”
in
WAN
Settings
, the settings in VLAN 1 and VLAN 2 will be changed accordingly and
automatically.
P-Bit:
Select a priority value from the drop-down menu for this VLAN rule.
Port:
T (Tag, a member in this VLAN rule), U (Un-tag, a member in this VLAN rule),
–
(Not a
member in this VLAN rule).
Click the
“
Insert
”
button to add this new rule to the VLAN table below after you enter the
new VID and select appropriate settings from the drop-down menu
Click the
“
Edit
”
button on the VLAN rule that you would like to make some changes. When
the selected port is highlighted in blue, users can make some changes by selecting from the
drop-down menu.
Click the
“
Change
”
button to apply the changes. The modified changes will apply to the
VLAN table immediately.
Page 43 / 91
43
2.6.4 Traffic Flow for Bridge & NAT Mode
The Residential Gateway provides four physical 10/100Base-TX ports located on the front
panel and one physical WAN port inside the device (interfaces vary depending on the model
that you purchased). However, there are two more ports that are not explicitly shown in the
interface but might largely affect the traffic flow when you use Bridge/NAT mode; these are
Upstream port and Downstream port.
In normal operations, when packets received from the WAN port and destined for ports
assigned in Bridge Mode, they will be delivered directly to these ports. On the other hand,
for traffic flow destined for ports assigned in NAT mode, they will be delivered to
Downstream port (WAN CPU) first and then to Upstream port (LAN CPU) for delivering
traffic to NAT ports. For example, if you set NAT/Bridge Mode to
“
Mode 2: 3 WAN & 2 LAN
”
,
the traffic flow from the WAN port to two Bridge ports are illustrated below in Figure 1 and
the traffic flow from the WAN port to two NAT ports are illustrated in Figure 2.
Figure 1: Traffic Flow for Bridge Mode
Figure 2: Traffic Flow for NAT Mode
When setting up the desired bandwidth for each port or queue in your networking
environment, it is strongly recommended to consider the traffic flow for ports assigned in
Bridge and NAT Mode.
Page 44 / 91
44
2.6.5 Bandwidth Control Setup Examples
Scenario I:
In this scenario, the WLAN Residential Gateway supports both IPTV applications and
internet access. As illustrated below, IPTV applications are connected to Port 1 (P1) and
Port 2 (P2); whereas, PC devices are connected to Port 3 (P3) and Port 4 (P4) to access the
internet. If you would like the WLAN Residential Gateway to control how much egress traffic
gets forwarded for Internet access as wished (4Mbps for P3 and P4 each), you can follow
the suggested setup steps below.
Step 1. Set Up NAT/Bridge Mode
In the scenario provided,
“
Mode 2: 3 WAN & 2 LAN
”
can be selected to group the WAN port,
Port 1 & 2 to Bridge Mode and Port 3 & 4 to NAT Mode.
Page 45 / 91
45
Step 2. Set Up Default VLAN ID
Set up WAN
’
s Default VLAN ID to 24 then NAT Interface
’
s will be changed to the same
one automatically.
Set up Port 1 and Port 2
’
s Default VLAN ID to 1100.
Click the
“
Submit
”
button to apply the settings.
Step 3. Set Up VLAN Forwarding Table
According to the scenario provided, VID 24 should have NAT Interface untagged and
WAN tagged.
According to the scenario provided, VID 1100 should have WAN tagged and Port 1 and
Port 2 untagged.
Step 4. Set Up Egress QoS Control
In this scenario,
“
Bandwidth Control
”
can be configured to control the outbound (egress)
bandwidth to PC devices. To limit the bandwidth to 4Mbps for both Port 3 and Port 4,
“
By
Port Only
”
Bandwidth Mode can be used to achieve this goal.

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