Chapter 9

Differentiated Services

Differentiated Services (DiffServ) is one technique for implementing Quality of Service (QoS) policies. Using DiffServ in your network allows you to directly configure the relevant parameters on the switches and routers rather than using a resource reservation protocol.This section explains how to configure the 7000 Series Managed Switch to identify which traffic class a packet belongs to, and how it should be handled to provide the desired quality of service. As implemented on the 7000 Series Managed Switch, DiffServ allows you to control what traffic is accepted and what traffic is discarded.

How you configure DiffServ support on a 7000 Series Managed Switch varies depending on the role of the switch in your network:

•Edge device. An edge device handles ingress traffic, flowing towards the core of the network, and egress traffic, flowing away from the core. An edge device segregates inbound traffic into a small set of traffic classes, and is responsible for determining a packet’s classification.

Classification is primarily based on the contents of the Layer 3 and Layer 4 headers, and is recorded in the Differentiated Services Code Point (DSCP) added to a packet’s IP header.

•Interior node. A switch in the core of the network is responsible for forwarding packets, rather than for classifying them. It decodes the DSCP code point in an incoming packet, and provides buffering and forwarding services using the appropriate queue management algorithms.

Before configuring DiffServ on a particular 7000 Series Managed Switch, you must determine the QoS requirements for the network as a whole. The requirements are expressed in terms of rules, which are used to classify inbound traffic on a particular interface. The switch software does not support DiffServ in the outbound direction.

Rules are defined in terms of classes, policies and services:

•Class. A class consists of a set of rules that identify which packets belong to the class. Inbound traffic is separated into traffic classes based on Layer 3 and 4 header data and the VLAN ID, and marked with a corresponding DSCP value. One type of class is supported: All, which specifies that every match criterion defined for the class must be true for a match to occur.

•Policy. Defines the QoS attributes for one or more traffic classes. An example of an attribute is the ability to mark a packet at ingress. The 7000 Series Managed Switch supports the following policy type:

Traffic Conditioning Policy - this type of policy is associated with an inbound traffic class and specifies the actions to be performed on packets meeting the class rules:

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7000 specifications

The NETGEAR Nighthawk R7000 is a high-performance dual-band Wi-Fi router that stands out in the crowded market of home networking devices. Designed to cater to gamers, streamers, and smart home enthusiasts, it provides robust connectivity and a range of features aimed at ensuring seamless internet experiences.

One of the R7000’s standout features is its dual-band capability, which allows it to operate on both the 2.4 GHz and 5.0 GHz frequency bands. This flexibility offers users the ability to connect devices that require stable connections without interference, such as smart TVs, gaming consoles, and smartphones. With speeds of up to 1900 Mbps, the R7000 supports even the most bandwidth-intensive activities, enabling multiple devices to stream, game, and browse simultaneously without lag.

The router is powered by a powerful dual-core processor, which enhances its overall performance and allows for efficient multitasking. With the inclusion of Beamforming technology, the R7000 intelligently directs Wi-Fi signals toward connected devices instead of broadcasting them in all directions. This focused connection improves network efficiency and range, ensuring that users can maintain strong links even in larger homes.

Security is a paramount concern for NETGEAR, and the R7000 addresses this with robust features. It includes built-in NETGEAR Armor, an advanced cybersecurity solution that protects connected devices from online threats. Additionally, parental controls and guest network options provide users with enhanced privacy and management capabilities, allowing families to regulate internet access and safeguard their networks.

The device is compatible with Amazon Alexa and Google Assistant, providing users with the ability to control their networks through voice commands. The R7000 also supports ReadySHARE USB access, enabling easy file sharing between devices by simply connecting a USB storage device to the router.

Setup and management of the R7000 are straightforward, thanks to the intuitive NETGEAR Nighthawk app. This mobile application allows users to manage their Wi-Fi settings, monitor connected devices, and perform speed tests on-the-go.

In summary, the NETGEAR Nighthawk R7000 is a feature-rich router designed for demanding internet users, combining speed, security, and user-friendly management to enhance the overall connectivity experience. Whether for gaming, streaming, or managing smart homes, the R7000 remains a strong contender in the networking landscape.
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