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Avaya P333R-LB manual IP Fragmentation and Reassembly Overview

Models: P333R-LB

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Chapter 12 Avaya P330 Layer 3 Features

IP Fragmentation and Reassembly

IP Fragmentation and Reassembly Overview

The P330 supports IP Fragmentation and Reassembly. This feature allows the router to send and receive large IP packets where the underlying data link protocol constrains MTU (maximum transport unit).

IP fragmentation involves breaking a datagram into a number of pieces that can be reassembled later. The IP source, destination, identification, total length, and fragment offset fields, along with the "more" fragment and "don't" fragment flags in the IP header, are used for IP fragmentation and reassembly.

IP Fragmentation works as follows:

•IP packet is divided into fragments

•each fragment becomes its own IP packet

•each packet has same identifier, source, destination address

•fragments are usually not reassembled until final destination

IP Fragmentation/Reassembly CLI Commands

In order to...

Use the following command...

 

 

 

 

Clear the fragment database and

clear fragment

restore its defaults

 

 

 

Set the maximum number of

fragment chain

fragments that can comprise a

 

single IP packet

 

 

 

Set the maximum number of

fragment size

fragmented IP packets, destined for

 

the router, to reassemble at any

 

given time

 

 

 

Set the maximum number of

fragment timeout

seconds to reassemble a

 

fragmented IP packet destined for

 

the router.

 

 

 

Display information regarding

show fragment

fragmented IP packets that are

 

destined for the router

 

 

 

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Avaya P333R-LB User’s Guide

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Avaya P333R-LB manual IP Fragmentation and Reassembly Overview, IP Fragmentation/Reassembly CLI Commands
Page 125 Page 127

P333R-LB specifications

The Avaya P333R-LB is a robust and versatile switch that is part of Avaya's portfolio aimed at enterprise networking solutions. This switch is designed to enhance the performance and scalability of network infrastructure while ensuring high availability and reliability.

One of the main features of the P333R-LB is its Layer 3 switching capability, which allows for efficient routing within an organization's network. This capability is particularly beneficial for organizations with multiple VLANs, as it simplifies the routing process and ensures that data packets are transmitted in the most efficient manner possible.

The P333R-LB is equipped with advanced Quality of Service (QoS) features to prioritize traffic based on the type of application being used. This ensures that critical applications, such as VoIP and video conferencing, receive the necessary bandwidth and low latency required for optimal performance. Additionally, it supports both IPv4 and IPv6 protocols, making it adaptable to a variety of networking environments.

Another important feature of the Avaya P333R-LB is its stackable design. This allows multiple switches to be interconnected, creating a single logical unit. This stacking capability not only simplifies management but also increases overall network capacity and redundancy. In case of a hardware failure, the stack can continue operating without interruption, maintaining network integrity and service continuity.

The switch also integrates advanced security features, including support for MAC filtering, access control lists, and port security. These features help to safeguard network resources from unauthorized access and potential threats. Moreover, the P333R-LB supports 802.1X port-based authentication, which adds an additional layer of security during user access to the network.

The Avaya P333R-LB comes with multiple Gigabit Ethernet ports, allowing for high-speed connectivity to devices such as servers, workstations, and IP phones. This ensures that all devices on the network can communicate effectively, supporting the demands of modern enterprise environments.

For management and monitoring, the P333R-LB offers a user-friendly web interface along with SNMP support, enabling network administrators to easily configure settings and monitor network performance. This simplicity in management is crucial for IT teams that need to ensure optimal network performance while minimizing downtime.

In summary, the Avaya P333R-LB is a feature-rich, scalable, and reliable switch that meets the needs of demanding enterprise networks. With its advanced technologies, QoS support, stackable design, robust security features, and high-speed connectivity options, the P333R-LB is positioned to support a wide range of applications and enhance overall network performance.