Appendix : Glossary 133

ESD Electrostatic Discharge—Discharge of stored static electricity that can damage electronic equipment and impair electrical circuitry, resulting in complete or intermittent failures.

ESF Extended Super Frame—Framing type used on T1 circuits that consists of 24 frames of 192 bits each, with the 193rd bit providing timing and other functions. ESF is an enhanced version of super frame (SF).

ESIG Extended Signaling—A system internal to Total Control which ingresses and distributes SS7 signaling throughout the Chassis via the packet bus.

ETSI European Telecommunications Standards Institute—Similar to the ANSI in the United States. It’s purpose is to provide standards for the telecommunications industry.

FCC Federal Communications Commission—A United States federal regulatory agency which oversees all aspects of the communications industry, TV, radio, telephone etc. in the United States.

FTP File Transfer Protocol—Application protocol, part of the TCP/IP protocol stack, for transferring files between network nodes. FTP is defined in RFC 959.

GCF Gatekeeper Confirm—This is a call flow message.

GK Gatekeeper—A device that manages an IP network, supporting all gateways, user profiles, and authentication. A gatekeeper is defined by the H.323 standard.

GRJ Gatekeeper Reject—This is a call flow message.

GRQ Gatekeeper Request—This is a call flow message.

GSM Global System for Mobile Communications—The European standard for digital cellular service using slow frequency-hopping and TDMA.

GW VoIP Media Gateway—A CommWorks VoIP device that can interconnect networks with different, incompatible communications protocols. The gateway performs a layer-7 protocol-conversion to translate one set of protocols to another (for example, from TCP/IP to SNA or from TCP/IP to X.25). A gateway operates at OSI layers up through the Session Layer.

GUI Graphical User Interface—A software interface based on pictorial representations and menus of operations, commands, and files. Opposite of the operating system command line interface.

HDB3 High Density Bipolar Three Zeros—A bipolar coding method that does not allow more than three consecutive zeros in the line signaling.

HDM High Density Modem—The HiPer DSP card in the VoIP system. It implements the PSTN interface and CODEC functions of the VoIP system. It contains 24 channels per card (T1-PRI) or 31 (E1-PRI) channels per card.

IC Industry Canada—A department of the Canadian government. It serves to promote all aspects of Canada’s economy. It’s charter is to improve conditions for investment, improve innovation performance, increase Canada's share of global trade and build a fair, efficient and competitive marketplace.

Page 133
Image 133
3Com 5210 manual Appendix Glossary

5210 specifications

The 3Com 5210 is a robust and reliable networking switch designed to meet the demands of modern IT environments. Aimed at businesses looking for a balance of performance and manageable costs, the 5210 series provides essential features that cater to the needs of various industries.

One of the standout features of the 3Com 5210 is its support for high-performance switching. With a switching capacity of up to 104 Gbps, the device is built to handle a significant amount of data traffic, making it suitable for environments with heavy workloads. Coupled with a forwarding rate of 77.4 million packets per second, the 5210 guarantees minimal latency, ensuring that data is transmitted swiftly and efficiently across the network.

The 5210 switch supports Layer 2 and Layer 3 switching, allowing for flexibility in network design and operational efficiency. The Layer 3 functionality enables IP routing, facilitating better traffic management and segmentation across IP networks. This is particularly useful for organizations looking to optimize their network performance and ensure efficient load distribution.

In terms of security, the 3Com 5210 incorporates advanced features designed to protect enterprise networks from potential threats. The switch supports VLANs, which help in segmenting network traffic, along with port security features to minimize unauthorized access. Moreover, it provides access control lists (ACLs) that allow administrators to define rules for data transmission, enhancing overall security.

The device is also equipped with Quality of Service (QoS) capabilities, which prioritize different types of traffic to ensure that critical applications receive the bandwidth they require. This is crucial for businesses that rely on voice over IP or video conferencing, as it ensures clear and uninterrupted communication.

Management and monitoring are simplified via a user-friendly web interface, allowing network administrators to configure settings, monitor traffic, and troubleshoot issues easily. The switch supports Simple Network Management Protocol (SNMP), enabling remote management and ensuring that IT teams can respond to problems without being physically present at the location.

The 3Com 5210 is characterized by its reliability and durability. Built with robust hardware components, the switch is designed for continuous operation, suitable for both small offices and larger enterprise networks. With its combination of performance, security, and manageability, the 3Com 5210 stands out as a valuable asset for organizations aiming to enhance their networking capabilities.