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Page 111 / 228 Scroll up to view Page 106 - 110
Chapter 7 Static Route
ericom D1000 modem User’s Guide
111
The following table describes the labels in this screen.
7.3
IPv6 Static Route
Use this screen to view the IPv6 static route rules. Click
Network Setting > Static Route > IPv6
Static Route
to open the
IPv6 Static Route
screen.
Figure 76
Network Setting > Static Route > IPv6 Static Route
The following table describes the labels in this screen.
Table 31
Network Setting > Static Route Add/Edit
LABEL
DESCRIPTION
Destination IP
Address
This parameter specifies the IP network address of the final destination. Routing is always
based on network number. If you need to specify a route to a single host, use a subnet
mask of 255.255.255.255 in the subnet mask field to force the network number to be
identical to the host ID.
IP Subnet Mask
Enter the IP subnet mask here.
Gateway IP
Address
Enter the IP address of the gateway. The gateway is a router or switch on the same
network segment as the device's LAN or WAN port. The gateway helps forward packets to
their destinations.
Metric
Enter the number of transmission hops (routers) that need to accross from the Device to
the destination.
OK
Click this to save your changes.
Cancel
Click this to restore your previously saved settings.
Table 32
Network Setting > Static Route > IPv6 Static Route
LABEL
DESCRIPTION
Add new static
route
Click this to configure a new IPv6 static route.
#
This is the number of an individual static route.
Destination
This parameter specifies the IP network address of the final destination. Routing is always
based on network number.
Prefix Length
An IPv6 prefix length
specifies how many most significant bits (starting from the left) in
the address compose the network address. This field displays the bit number of the IPv6
subnet mask.
Gateway
This is the IPv6 address of the gateway. The gateway is a router or switch on the same
network segment as the device's LAN or WAN port. The gateway has a route to the
destination network and helps forward packets to their destinations.
Device
This specifies the LAN or WAN PVC.
Modify
Click the
Edit
icon to go to the screen where you can set up a static route on the Device.
Click the
Remove
icon to remove a static route from the Device. A window displays
asking you to confirm that you want to delete the route.
Page 112 / 228
Chapter 7 Static Route
ericom D1000 modem User’s Guide
112
7.3.1
IPv6 Static Route Edit
Use this screen to configure the required information for an IPv6 static route. Click
Add new static
route
or select an IPv6 static route index number and click
Edit
. The screen shown next appears.
Figure 77
Network Setting > Static Route > IPv6 Static Route: Add/Edit
The following table describes the labels in this screen.
Table 33
Network Setting > Static Route > IPv6 Static Route: Add/Edit
LABEL
DESCRIPTION
Destination IPv6
Address
This parameter specifies the IP network address of the final destination. Routing is always
based on network number. If you need to specify a route to a single host, use a prefix
length of 128 in the prefix length field to force the network number to be identical to the
host ID.
IPv6 Prefix Length
Enter the address prefix to specify how many most significant bits compose the network
address.
Gateway IPv6
Address
Enter the IPv6 address of the gateway. The gateway is a router or switch on the same
network segment as the device's LAN or WAN port. The gateway has a route to the
destination network and helps forward packets to their destinations. If a link local address
is used, the interface should also be specified.
PVC IPv6 Address
Select the interface through which the traffic is routed.
OK
Click this to save your changes.
Cancel
Click this to restore your previously saved settings.
Page 113 / 228
ericom D1000 modem User’s Guide
113
C
HAPTER
8
Quality of Service (QoS)
8.1
Overview
Use the
QoS
screen to set up your Device to use QoS for traffic management.
Quality of Service (QoS) refers to both a network’s ability to deliver data with minimum delay, and
the networking methods used to control bandwidth. QoS allows the Device to group and prioritize
application traffic and fine-tune network performance.
Without QoS, all traffic data are equally likely to be dropped when the network is congested. This
can cause a reduction in network performance and make the network inadequate for time-critical
applications such as video-on-demand.
The Device assigns each packet a priority and then queues the packet accordingly. Packets assigned
with a high priority are processed more quickly than those with low priorities if there is congestion,
allowing time-sensitive applications to flow more smoothly. Time-sensitive applications include both
those that require a low level of latency (delay) and a low level of jitter (variations in delay) such as
Voice over IP (VoIP) or Internet gaming, and those for which jitter alone is a problem such as
Internet radio or streaming video.
In the following figure, your Internet connection has an upstream transmission speed of 50 Mbps.
You configure a classifier to assign the highest priority queue (6) to VoIP traffic from the LAN
interface, so that voice traffic would not get delayed when there is network congestion. Traffic from
the boss’s IP address (192.168.1.23 for example) is mapped to queue 5. Traffic that does not
match these two classes are assigned priority queue based on the internal QoS mapping table on
the Device.
Figure 78
QoS Example
8.1.1
What You Can Do in the QoS Screens
•
Use the
General
screen (
Section 8.2 on page 114
) to enable QoS on the Device, and specify the
type of scheduling.
50 Mbps
DSL
VoIP: Queue 6
Boss: Queue 5
IP=192.168.1.23
Page 114 / 228
Chapter 8 Quality of Service (QoS)
ericom D1000 modem User’s Guide
114
•
Use the
Queue Setup
screen
(
Section 8.3 on page 115
) to configure QoS settings on the Device.
•
Use the
Class Setup
screen
(
Section 8.4 on page 117
) to configure QoS settings on the Device.
•
Use the
Game List
screen
(
Section 8.5 on page 121
) to to give priority to traffic for specific
games.
8.1.2
What You Need to Know About QoS
802.1p
QoS is used to prioritize source-to-destination traffic flows. All packets in the same flow are given
the same priority. 802.1p is a way of managing traffic in a network by grouping similar types of
traffic together and treating each type as a class. You can use 802.1p to give different priorities to
different packet types.
Tagging and Marking
In a QoS class, you can configure whether to add or change the DiffServ Code Point (DSCP) value
and IEEE 802.1p priority level in a matched packet. When the packet passes through a compatible
network, the networking device, such as a backbone switch, can provide specific treatment or
service based on the tag or marker.
Finding Out More
See
Section 8.6 on page 122
for advanced technical information on QoS.
8.2
The Quality of Service General Screen
Use this screen to enable or disable QoS and set the upstream bandwidth.
Click
Network Setting > QoS > General
to open the screen as shown next.
Figure 79
Network Setting > QoS > General
Page 115 / 228
Chapter 8 Quality of Service (QoS)
ericom D1000 modem User’s Guide
115
The following table describes the labels in this screen.
8.3
The Queue Setup Screen
Use this screen to configure QoS queue assignment disciplines and priorities.
Click
Network Setting > QoS > Queue Setup
to open the screen as shown next.
Figure 80
Network Setting > QoS > Queue Setup
The following table describes the labels in this screen.
Table 34
Network Setting > QoS > General
LABEL
DESCRIPTION
Active QoS
Use this field to turn on QoS to improve your network performance.
Traffic priority will be
automatically assigned by
Select how the Device assigns priorities to various incoming and outgoing traffic
flows.
•
None
: Disables auto priority mapping and has the Device put packets into
the queues according to your classification rules. Traffic which does not
match any of the classification rules is mapped into the default queue with
the lowest priority.
•
Ethernet Priority
: Automatically assign priority based on the IEEE 802.1p
priority level.
•
IP Precedence
: Automatically assign priority based on the first three bits of
the TOS field in the IP header.
•
Packet Length
: Automatically assign priority based on the packet size.
Smaller packets get higher priority since control, signaling, VoIP, internet
gaming, or other real-time packets are usually small while larger packets are
usually best effort data packets like file transfers.
Apply
Click this to save your changes.
Cancel
Click this to restore your previously saved settings.
Table 35
Network Setting > QoS > Queue Setup
LABEL
DESCRIPTION
Index
This is the index number of the entry.
Status
This field displays whether the queue is active or not. A yellow bulb signifies that this queue is
active. A gray bulb signifies that this queue is not active.
Name
This shows the descriptive name of this queue.
Interface
This shows the name of the Device’s interface through which traffic in this queue passes.
Priority
This shows the priority of this queue.
Weight
This shows the weight of this queue.

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