Configuring H.323 Gatekeepers and Proxies

H.323 Gatekeeper Features

Multimedia Conference Manager provides a rich list of networking capabilities, including the following:

•A means to implement quality of service (QoS), which is required for the successful deployment of H.323 applications.

•Interzone routing in the E.164 address space. When using H.323-identification (H.323-ID) format addresses, interzone routing is accomplished by using domain names.

Multimedia Conference Manager allows you to do the following:

•Identify H.323 traffic and apply appropriate policies.

•Limit H.323 traffic on the LAN and WAN.

•Provide user accounting for records based on service use.

•Insert QoS for the H.323 traffic generated by applications such as Voice over IP (VoIP), data conferencing, and video conferencing.

•Implement security for H.323 communications.

Principal Multimedia Conference Manager Functions

The H.323-compliant Multimedia Conference Manager has two principal functions: gatekeeper and proxy. Gatekeeper subsystems provide the following features:

•User authorization in which authentication, authorization, and accounting (AAA) account holders are permitted to register and use the services of the gatekeeper application.

•Accounting using AAA call detail records.

•Zone bandwidth management to limit the number of active sessions.

•H.323 call routing.

•Address resolution.

Cisco Multimedia Conference Managers can be configured to use the Cisco Hot Standby Router Protocol (HSRP) so that when one gatekeeper fails, the standby gatekeeper assumes its role.

Proxy subsystems provide the following features:

•H.323 traffic consolidation.

•Tight bandwidth controls.

•QoS mechanisms such as IP Precedence and RSVP.

•Secure communication over extranets.

H.323 Gatekeeper Features

The following sections describe the main features of a gatekeeper in an H.323 network:

•Zone and Subnet Configuration, page 291

•Redundant H.323 Zone Support, page 291

•Gatekeeper-to-Gatekeeper Redundancy and Load-Sharing Mechanism, page 292

•Interzone Communication, page 293

•RADIUS and TACACS+, page 293

•Accounting via RADIUS and TACACS+, page 293

Cisco IOS Voice, Video, and Fax Configuration Guide

VC-290

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Cisco Systems VC-289 manual Principal Multimedia Conference Manager Functions, VC-290
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VC-289 specifications

Cisco Systems has long been a leader in networking technology, and among its diverse range of products is the VC-289. Designed specifically for enhanced performance in high-demand environments, the VC-289 serves a critical role in supporting the modern networking infrastructure.

One of the standout features of the VC-289 is its scalability. The device is engineered to easily accommodate expanded workloads, ensuring that organizations can grow without the need for frequent upgrades. This scalability is complemented by Cisco's commitment to backward compatibility, allowing businesses to integrate new systems with existing setups seamlessly.

In terms of performance, the VC-289 boasts impressive processing power. With advanced multi-core architecture, it is capable of handling multiple data streams simultaneously, making it ideal for environments that require consistent data flow, such as cloud computing and IoT applications. The device’s high throughput ensures that users experience minimal latency, facilitating quick data transfers even during peak usage times.

Security is another key characteristic of the VC-289. Cisco has integrated robust security protocols that protect against various cyber threats. Through features such as advanced encryption standards and intrusion prevention systems, organizations can ensure that sensitive data remains secure and is not compromised during transmission.

Another notable technology within the VC-289 is its support for software-defined networking (SDN) capabilities. This allows for more flexible network management, enabling IT teams to adapt the network according to evolving business needs. The ability to programmatically control the network also means that businesses can implement changes more rapidly, reducing downtime and improving overall productivity.

The VC-289 is designed with energy efficiency in mind, featuring power-saving modes that help reduce operational costs. This focus on sustainability not only benefits the environment but also appeals to organizations striving to meet corporate social responsibility objectives.

In conclusion, the Cisco Systems VC-289 stands as an exemplary solution for modern networking challenges. With its scalability, performance capabilities, enhanced security features, SDN support, and energy efficiency, it meets the demands of today's fast-paced and ever-evolving technological landscape. Organizations looking to invest in a robust networking solution would do well to consider the VC-289 as a cornerstone of their infrastructure.
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