Business Policy - Advanced

This section describes how to configure advanced business policy settings. 

Business Policy - Advanced provides advanced business policy settings.

Business Policy Settings

Business Policy Settings

WLR Dual Link Enabled

Shows status of Dual WAN link. It allows related parameters to be configured.

Routing Decision Preference

The routing decision preference determines how the EdgeMarc chooses the active WAN interface. The EdgeMarc performs an active test on both WAN interfaces according to the method selected.

• Latency – When Latency is selected, the EdgeMarc performs an ICMP ping to the destination IP address. The WAN link with the lower round trip time is used as the active link.
• Hop Count – When Hop Count is selected, the EdgeMarc selects the active link based on the number of hops observed via traceroute to the destination. The link with the lowest count is used as the active link.

Latency Difference(%)

This field appears when Latency is selected as the Routing Decision Preference. This setting specifies the difference in percentage between the latency of traceroute output of both links after which a switch occurs. Default value is 100 (percentage). The range is 10 to 100.

Hop Count Difference

This field appears when Hop Count is selected as the Routing Decision Preference. This setting specifies the difference in hop counts in which the system performs a switch. The default value is 7 (number of router hops).

Data Collection Interval(s)

Specifies the interval at which the chosen link test is performed. The default value is 180 seconds. The range is 60 to 300 sec.

Event Notifications

Enable to generate and send link switching event notifications to EdgeView. By default it is disabled. By default, it is off.

Summary Reports

Enable to generate and send monitoring reports to EdgeView. Report summaries is a report based upon the data used in determining when a link switching event occurs. The summary report is useful for historical references when troubleshooting issues, visualizing the metrics for quality or for WAN health information. Reports are available in the DB for a maximum period of 15 minutes to be consumed by EdgeView. By default it is disabled.

WAN Bandwidth Settings

Shows the configured downstream and upstream bandwidth for the primary and secondary WAN link.

Downstream

PRIMARY WAN Bandwidth (Kbps)

Maximum downstream bandwidth for primary WAN in kilobits per second (Kbps).

SECONDARY WAN Bandwidth (Kbps)

Maximum downstream bandwidth for secondary WAN in kilobits per second (Kbps).

Upstream

PRIMARY WAN Bandwidth (Kbps)

Maximum upstream bandwidth for primary WAN in kilobits per second (Kbps).

SECONDARY WAN Bandwidth (Kbps)

Maximum upstream bandwidth for secondary WAN in kilobits per second (Kbps).

Queue Management Settings

Classes of Service

In order to prioritize and guarantee bandwidth for different types or class of traffic, network traffic is grouped into classes of service. This page allows the creation and modification of classes of service on the system and to allocate a percentage of bandwidth to each class.

The percentage of bandwidth should equal 100%. By default, the system has five classes - Voice-Video, Highest, High, Medium, and Low. These five default classes have default bandwidth percentages assigned that total 100%. This 100% is based upon the configured Upstream and Downstream values from the Traffic Shaping configuration.

Classes of service on the system create queues to guarantee service priority based upon the priority class assigned. For example, Voice-Video is assigned a value of EF and allocated 85% of the WAN bandwidth. Classing Voice-Video as EF means this traffic is given higher priority and processed before classes below it, i.e., AF4x, AF3x, AF2x, and Best Effort. Classing data flows with Voice-Video, Highest, High, Medium and Low allows control of the priority and percentage of WAN bandwidth allocated to that service.

Below is the mapping of Priority Classes with the name:

• Voice-Video - EF
• Highest - AF4x
• High - AF3x
• Medium - AF2x
• Low - Best Effort

Classes of Service Bandwidth Percentage

Create a New Class

To create a new class, enter the following details and click Submit (for more information on submitting your changes, refer to Submit Configuration Changes).

Action

Select the required action from the drop-down list:

• Add New Rule – Select to define a new class of service rule. The Maximum number of rules is 75.
• Edit Rule – Select the rule to edit, make the desired changes and click the Edit button to save the changes.

Name

Specifies a unique name for the classification rule. Only alphanumeric, underscore(_), hyphen(-) and dot(.) characters are allowed.

Priority Class

The system supports 8 classes of service. They are (from low to high priority):

• Best Effort – This is the default class. All unmarked traffic is assigned to this class. This traffic is dropped first during times of congestion. Examples of Best Effort traffic include web, email, and SNMP.
• Assured Forwarding / IP Precedence (1 to 4) - Assured Forwarding is suggested for applications that require better reliability than the Best Effort service. There are four Assured Forwarding classes of service. These classes also map to IP Precedence classes 1 through 4.
• Expedited Forwarding / IP Precedence 5 – Provides low-loss, low-latency, low-jitter and guaranteed bandwidth. This class is recommended for real-time voice traffic. This class also maps to IP Precedence class 5.
• IP Precedence 6 & 7

Bandwidth Percentage (%)

In general, higher priority classes are configured to receive a greater percentage of the total bandwidth. The sum of bandwidth percentages across all configured classes cannot exceed 100%. When some of the classes are not in use, extra bandwidth % is distributed across the other classes.

Drop Through Interface

The configured class of packets is dropped through the WAN interface selected under this option.