Glossary

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IGMP. Internet Group Management Protocol. Transport layer multicasting protocol used by IP hosts to register their dynamic multicast group membership. It is also used by connected routers to discover these group members.

Inverse ARP. Inverse Address Resolution Protocol. Enables routers to obtain the IP address of a known Ethernet address of a device associated with a virtual circuit. Method of building dynamic routes in a network.

IP. Internet Protocol. Part of the TCP/IP protocol. IP networks are connectionless, packet switching networks.

IP address. 32-bit address assigned to hosts using TCP/IP. An IP address contains four octets separated by periods, also known as a dotted quad address. Each address consists of a network number, an optional sub- network number and a host number. The network and sub-network numbers together are used for routing, while the host number is used to address an individual host within the network or sub-network.

IP SNAP. Sub-network Access Protocol. Internet protocol that operates between a network entity in the sub-network and a network entity in the end system. SNAP specifies a standard method of encapsulating IP datagrams and ARP messages on IEEE networks. The SNAP entity in the end system makes use of the services of the sub-network and performs three essential functions: data transfer, connection management and QOS selection.

LAN. Local Area Network. Privately owned network-connecting devices over a limited geographic area—usually limited to an office or office complex. Often connected to the Internet via IADs, with firewall software to limit access to the LAN by authorized users. May use TCP/IP or one of several other protocols.

LMI. Local Management Interface. A set of the following enhancements to the basic Frame Relay specification. Called LMT in ANSI terminology.

a keep-alive mechanism that verifies that data is flowing.

a multi-cast mechanism, which provides the network server with its local DLCI and the multi-cast DLCI.

Global addressing; this gives DLCIs global rather than local

￿significance in Frame Relay networks.

a mechanism that provides an on-going status report on the DLCIs known to the switch.

MAC. Media Access Control. Lower of the two sub-layers of the data link layer defined by the IEEE.

MAC address. Standardized data link layer address that is required for every port or device that connects to a LAN. Other devices in the network use these addresses to locate specific ports in the network and to create and update routing tables and data structures. MAC addresses are six bytes long and are IEEE-controlled. Also known as a hardware address, a MAC-layer address, or a physical address.

MPEG. Moving Pictures Expert Group.

Notified Entry. IP address of the MGCP Call Agent; controls the call setup and teardown for all call features under MGCP.

NetEngine IAD User Guide

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Polycom 7000, 6000 manual Glossary 294
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7000, 6000 specifications

The Polycom 6000, officially known as the Polycom RealPresence Group 6000, is an advanced video conferencing solution designed to facilitate seamless communication in various business environments. This high-definition system is specifically engineered for medium to large conference rooms, providing a superior collaboration experience for teams and organizations.

One of the standout features of the Polycom 6000 is its outstanding video quality. The system supports 1080p resolution at 60 frames per second, ensuring that every detail is crystal clear. This is crucial for effective communication, as it allows participants to see facial expressions and body language, which are essential for meaningful interaction. Coupled with Polycom's advanced video technology, the system can adapt to varying network conditions, ensuring that the video remains smooth and stable even in less than ideal circumstances.

Another significant characteristic of the Polycom 6000 is its interoperability. It seamlessly integrates with a range of other video conferencing solutions, including those from competitor brands. This flexibility allows businesses to connect with partners and clients who may not use the same technology, enhancing collaboration across different platforms. The system also supports standards-based protocols, making it a versatile choice for organizations looking to future-proof their communications.

Audio quality is equally impressive, as the Polycom 6000 features Polycom’s Acoustic Clarity technology. This technology provides full-duplex audio, ensuring that users can listen and speak simultaneously without interruptions or echoes. The system is equipped with directional microphones that capture sound clearly from every corner of the conference room, making it ideal for group discussions.

The Polycom 6000 also boasts advanced content sharing capabilities. Users can easily present documents, slides, and videos during meetings through the system's intuitive interface. With the support for wireless content sharing, participants can connect their devices without any cumbersome cables, making the overall meeting experience more fluid and engaging.

Security is a top priority for any modern communication tool, and the Polycom 6000 delivers robust security features. It includes encryption protocols to ensure that conversations remain confidential and secure from potential threats.

In conclusion, the Polycom 6000 is a powerful video conferencing solution characterized by exceptional video and audio quality, interoperability, advanced content sharing capabilities, and strong security protocols. It is a worthy investment for any organization seeking to enhance its communication and collaboration efforts.
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