Network Hardware Recommendations 6

6.1 General Recommendations

Critical networks such as those used in profes- sional audio systems require infrastructure hardware offering the high level of connectivity and reliability essential for critical, data-intensive applications.

Additionally, this hardware needs to be robust enough to survive the rigors of repetitive loading and unloa- ding, and frequent connection and disconnection. Lab.gruppen has evaluated a number of hardware manufacturers in regard to use within a PLM Series network. Our findings have resulted in the following hardware recommendations. Of course, there are any number of scenarios involving systems of various sizes, logistical and routing requirements, so these recommendations are to be considered as guidelines only.

In addition to the recommendations provided, other products may be equally suited to PLM Series ap- plications. Lab.gruppen will continue to evaluate and verify network products as the market for network devices changes rapidly. Updated information will be posted at www.labgruppen.com/plm.

6.1.1Network switches / routers: LinkSys SRW224G4

Depending on the configuration selected, the appropriate network switch or router will have enough ports to accommodate direct connection to each PLM in the rack as well as connections from rack to rack where required in the system-wide configuration.

Switches manufactured for mounting into a standard 19 inch equipment rack are generally considered more appropriate to withstand the rigors of loading and unloading that can be part of a sound system’s daily use.

In systems that DO NOT utilize Dante, Lab.gruppen is not providing a specific recommendation. In gen- eral, however, a switch with RSTP is recommended. This greatly increases reliability in case of any loss of information or connection failures. It is also a good practice to use switches that allow monitoring of links over the network.

In systems where Dante is used, the switch should have 1000BASE-T (or better) for switch-to-switch connections. The switch must support the DiffServe

Code Point (DSCP) protocol, and it must implement strict priority control over at least the top two priority levels. (3Com is an example of a provider that typi- cally prioritizes only the top level.) See References and Definitions in section 7 for more on DSCP. Internal switch forwarding latency of 4 µs or less is recommended.

Several switches have been tested by Lab.gruppen and not all behave according to their datasheets. Some others that comply with general specifications have a

tendency to drop packets, and therefore cannot be recommended.

LinkSys SRW224G4

•19 inch rack-mountable

•24 x 10/100 switched RJ45 ports

•4 x 10/100/1000 switched RJ45 ports

•2-SFP slots for use with fiber optic connections

•RSTP supported

•Secure remote monitoring software available (freeware)

•Approved by Audinate, developers of the Dante network

•Manufacturers link: www.linksys.com

6.1.2Recommended wireless access point: LinkSys WAP200

Access points utilizing the 802.11g or 802.11n formats are recommended both for their diversity and bandwidth. A PoE-type (Power over Ethernet / 802.3af) access point that can be powered over its Ethernet connection is also a good idea, as it is very easy to place at an optimal location since only one cable is needed for both network connectivity and power. (See in section 7 References and Definitions for more information.)

If the switch doesn’t have PoE, then a mid- span PoE adapter is needed as well.

PLM Series Network Configuration Guide 13

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3Com NCG-PLM manual Network Hardware Recommendations, General Recommendations, Network switches / routers LinkSys SRW224G4
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NCG-PLM, PLM Series specifications

The 3Com NCG-PLM, PLM Series is a notable product line from 3Com Corporation designed to enhance network management and provide a robust infrastructure for businesses. This series is centered around providing seamless connectivity and efficient network performance while supporting a variety of applications and services.

One of the main features of the PLM Series is its advanced network management capabilities. The series offers a comprehensive suite of management tools that facilitate easy monitoring and configuration of network devices. This enables IT administrators to gain visibility into network performance, troubleshoot issues, and manage bandwidth effectively. The user-friendly interface simplifies these processes, allowing for quick adjustments and ensuring optimal functionality.

The PLM Series integrates cutting-edge technologies to support high-speed connectivity and data transfer. With support for Gigabit Ethernet, the series ensures that data can be transferred rapidly across networks, meeting the growing demands of modern applications and user expectations. Such speed is crucial for businesses that rely on data-intensive applications, video conferencing, and cloud services.

Furthermore, one of the hallmark characteristics of the 3Com NCG-PLM Series is its reliability and scalability. Designed to accommodate increasing network demands, the devices within this series can easily expand to support additional users and devices. This scalability ensures that organizations can grow without the need for extensive overhauls of their existing infrastructure.

Security is another paramount feature of the PLM Series. It employs various security protocols to protect sensitive data and maintain the integrity of the network. This includes measures against unauthorized access, ensuring that only authenticated devices and users can connect to the network. This commitment to security is critical in today’s climate where cyber threats are ever-evolving.

The PLM Series is also designed with energy efficiency in mind. The devices consume less power without compromising performance, thereby supporting sustainability initiatives within organizations. This energy-efficient design can result in significant cost savings on power consumption over time.

In summary, the 3Com NCG-PLM, PLM Series stands out for its advanced network management tools, high-speed connectivity, reliability, scalability, strong security measures, and energy efficiency. These attributes make it an ideal choice for businesses seeking to optimize their network infrastructure and cope with the increasing demands of modern digital operations.
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