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QoS Queue Configuration

The queuing in packet QoS becomes effective only when packet is

forwarded to QoS-enabled PVC. Packet forwarding is determined

by IP routing or bridging, not under control of the packet QoS.

Select

Advanced Setup

>

Queue Config

. In this page, you can

configure QoS queue. A maximum of 24 entries can be configured.

QoS Queue Configuration can allocate four queues. Each of the

queues can be configured for a precedence value (Lower integer

values for precedence imply higher priority for this queue relative

to others). The queue entry configured is used by the classifier to

place ingress packets appropriately.

Note:

Lower integer values for precedence imply higher priority for

this queue relative to others. For example, add a QoS queue entry

and allocate it to a specific network interface (PVC 0/0/35). Set

integer values for queue precedence to 1.

Click

Add

to configure a QoS Queue configuration entry.

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Step 1

This page allows you to configure a QoS queue entry and then

assign it a specific network interface.

Queue Configuration Status:

Set to enable or disable a QoS

queue.

Queue:

Select a specific network interface. When you have already

selected a network interface, the specific network interface selected

automatically allocates to the queue.

Queue Precedence:

Select an integer value for queue precedence.

After you select an integer value, the queue entry appropriately

places to ingress packets. Lower integer values for precedence

imply higher priority for this queue relative to others.

Click

Save/Apply

to save and activate the filter.

After the queue is configured, you can create several traffic class

rules to classify the upstream traffic.

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QoS Classification

Some applications require specific bandwidth to ensure its data be forwarded in time. QoS classification can creates

traffic class rule to classify the upstream traffic. Assign queue which defines the precedence and the interface and

optionally overwrite the IP header DSCP byte. After QoS classification, QoS divides capacity between different

applications and provides undelayed, continuous data transfer where data packet with higher priority is given

preference. The follow figure shows QoS classification.

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Select

Advanced Setup

>

QoS Classification

. In this page, you

can configure network traffic classes.

Click

Add

to create a traffic class rule to classify the upstream

traffic.

Traffic Class Name:

Enter a name of the class.

Rule Order:

Select order for queue.

Rule Status:

Enable or disable this traffic class rule.

Assign Classification Queue:

Select a classification queue.

Assign Differentiated Service Code Point (DSCP) Mark:

Select a mark service that modifies the original packet IP header

if all rules defined within the classification class are matched.

(CS-Mark IP Precedence, AF-Assured Forwarding, EF-Expedited

Forwarding)

Mark 802.1p if 802.1q is Enabled:

Select an 802.1p priority

number that serves as the 802.1p value.

There are two sets of classification rules.

Set-1

is based on

different fields within TCP/UDP/IP layer plus physical LAN port;

Set-2

is based on IEEE 802.1p priority field.

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Set-1

rules contain the following:

Physical LAN Port: Select one among USB port, Ethernet ports and

wireless port.

Protocol: Select one among TCP/UDP TCP UDP or ICMP

protocols.

Source IP Address

Source subnet mask

UPD/TCP Source Port

Destination IP Address

Destination Subnet Mask

UPD/TCP destination port or a range of ports

Source Mac Address

Source Mac Mask

Destination Mac Address

Destination Mac Mask

Set-2

rules contain the following:

802.1p Priority: the 802.1p header includes a 3-bit prioritization

field, which allows packets to be grouped into eight levels of priority

(0-7), where level 7 is the highest one.

Click

Save/Apply

to save and activate this rule.