Packet Filtering

About Differentiated Services

IP packets move from router to router by using Routing and Packet Forwarding processes. The routing process involves building and maintaining a routing table. The packet forwarding process involves comparing the destination address of a packet with entries in a routing table to determine where to send the packet. Furthermore, there is a component of the forwarding process that can be used for controlling the behavior of a specific type of packet. The component is called Differentiated Services, which is also known as DiffServ or Quality of Service (QoS).

Differentiated Services involves using an identification system to mark IP packets. When the marked packet is processed by a router that is running Differentiated Services, the router compares the mark with a list of Packet Forwarding Behavior (PFB) rules. If a packet matches a specific rule, the rule is used to the forward the packet. A PFB rule defines specific forwarding characteristics such as minimum bandwidth requirements and the transmission precedence of one type of packet relative to other packets.

The identification system involves two kinds of marks: User Defined and Predefined. The user defined mark is in the form of a number, where the number can be from 0 to 63, and identifies a customized PFB rule. The predefined mark is in the form of alpha numeric characters, and it identifies generic PFB rules that come with your router. A predefined mark is also known as a Behavior Aggregate.

Note:

For additional information about Differentiated Services, see the following documents.

●Your router’s documentation.

●RFC 1812, “Requirements for IP Version 4 Routers”

●RFC 2474, “Definition of the Differentiated Services Field in the IPv4 and IPv6 Headers”

●RFC 2475, “An Architecture for Differentiated Services”

How a VSU marks packets

Before a VSU can run marking services, it’s loaded with a list of Packet Marking Rules. As packets move through the VSU, it examines the header fields of every packet. The information gathered from the header is compared to the list of rules. If the comparison results in a match, the Type of Service (ToS) field of the header is marked. Marking can be performed on packets entering and/or exiting the VSU. Be aware that only IPv4 packets can be analyzed and marked.

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Avaya 3.7 manual About Differentiated Services, How a VSU marks packets
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3.7 specifications

Avaya 3.7 represents a significant evolution in unified communications technology, designed to enhance collaboration and streamline communication workflows for organizations of all sizes. As a cornerstone of Avaya's offerings, this version incorporates a range of features and improvements that cater to contemporary business needs, emphasizing flexibility, reliability, and seamless integration.

One of the most notable features of Avaya 3.7 is its robust call management capabilities. The platform allows users to manage calls effectively through a user-friendly interface, enabling intuitive functionalities such as drag-and-drop call handling, call forwarding, and conference calling. These features help employees stay connected, facilitating better communication and teamwork across departments.

In terms of mobility, Avaya 3.7 supports mobile applications that allow users to access the system remotely. This is particularly advantageous for businesses with a workforce that relies on remote or hybrid work models. The mobile integration ensures users can make and receive calls, check voicemail, and manage their schedules directly from their smartphones, maintaining productivity regardless of location.

The system also embraces advanced collaboration tools, such as video conferencing and instant messaging. These features promote a more dynamic interaction environment, fostering real-time communication among team members. Video conferencing capabilities allow for high-definition video quality and reliable connectivity, making virtual meetings more engaging and effective.

Security is another critical characteristic of Avaya 3.7. The platform includes enhanced encryption protocols to protect sensitive communications and ensure data integrity. With cybersecurity remaining a top concern for businesses, Avaya has prioritized the security of its communications solutions, safeguarding organizations' information against potential threats.

Furthermore, Avaya 3.7 benefits from the incorporation of AI and analytics. These technologies provide businesses with valuable insights into communication patterns and user behavior, enabling them to optimize their processes. The analytics can help identify areas for improvement and drive informed decision-making, thus enhancing overall efficiency.

Interoperability with existing systems is another hallmark of Avaya 3.7. The platform easily integrates with various applications and services, allowing businesses to leverage their current technology investments and create a cohesive communication ecosystem.

In summary, Avaya 3.7 stands out as a comprehensive communication solution that addresses the modern demands of the workplace. With its advanced call management features, mobility support, collaboration tools, strong security measures, and integration capabilities, Avaya 3.7 positions itself as a vital asset for organizations aiming to enhance their communication strategies and drive business success.
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