Chapter 14 Load Balancing in the P333R-LB

— Domain Name (for HTTP 1.1 only)

Note: If you selected HTTP 1.1, you can specify a Domain Name to be used in the Health Check query. If you don’t specify a Domain Name, the Real Server’s IP address and the Real port is used.

—URL to access - up to 255 characters (default “/”)

—The expected response

—Expected response and type: Any Response, Any OK Response (HTTP status code 2xx), or Exact OK Response (HTTP status code 200) - default

—Expected String - a string up to 255 characters for comparison with the response

—Expected String Offset - an offset from the end of the TCP header (up to 1000 bytes) where the Expected String should appear

A successful HTTP Health Check is defined as one with both the expected response and the expected string valid.

•Script Server Checking - Supported over TCP, this method verifies the functioning of the server by running a script on the server. Script Health Check enables you to build your own script to run on the Real Server, and return a pre-defined response.

You configure a complete and explicit request header as well as the expected response string with offset. The string’s limiting factors are:

—Maximum length of request header: 255 characters.

—Maximum length of response string: 255 characters.

—Maximum offset from end of TCP header: 1000 bytes.

P333R-LB compares the server’s reply with the expected reply you configured. You need to verify that the configured request results in the configured expected response.

Note: The default health check method for SLB is TCP Port Checking.

For the commands to configure the different Health Checks, refer to Health Check Commands on page 302.

Client Persistency

Persistency is a way to ensure that all traffic related to a given session and all sessions of a given characteristic are served by the same server.

Client persistency is the persistency between many sessions for one client. Client persistency ensures that all traffic from the client is directed to the same Real Server.

Avaya P333R-LB User’s Guide

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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.
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