138APPENDIX : GLOSSARY

SS7 Signaling System 7—A global standard for telecommunications as defined by the International Telecommunication Union (ITU). The SS7 standard defines the procedure protocol by which network elements in the PSTN exchange information over a digital signaling network.

SMS System Management Services—Allows provisioning and updating of information on subscribers and services in near-real time for billing and administrative purposes.

SNMP Simple Network Management Protocol—Standardized method of managing and monitoring network devices on TCP/IP-based internets. A standard way for computers to share networking information. In SNMP, two types of communicating devices exist: agents and managers. An agent provides networking information to a manager application running on another computer. The agents and managers share a database of information, called the Management Information Base (MIB). An agent can use a message called a traps-PDU to send unsolicited information to the manager.

SQL Structured Query Language—A standard interactive and programming language for requesting information from and updating databases.

SRAM Static Random Access Memory—Type of RAM that retains its contents for as long as power is supplied. SRAM does not require constant refreshing, like DRAM.

SSSilence Suppression—A way to save on bandwidth by not transmitting the silences or gaps in conversation. A voice compression process where the time when there is no voice being transmitted over the line during a conversation, that space is filled with data, and video transmission on the line.

SST Silence Suppression Threshold—The limit of silence allowed on the voice transmission before data, and video packets are sent on the line. This can be defined by the user.

STP Signal Transfer Point—SS7 Signal Routing Node. It is a very reliable packet switch used to forward signaling messages in an SS7 network. The network switches and the SCPs connect directly to the STPs for message routing.

SVGA Super Video Graphics Array—An enhancement of the VGA display standard. SVGA can display at least 800 pixels horizontally and about 600 lines vertically.

TCM Total Control Manager—See IP Telephony Manager.

TCP Transmission Control Protocol—Connection-oriented protocol that provides a reliable byte stream over IP. A reliable connection means that each end of the session is guaranteed to receive all of the data transmitted by the other end of the connection, in the same order that it was originally transmitted without receiving duplicates.

TDM Time Division Multiplexing—A technique in which information from multiple channels can be allocated bandwidth on a single wire based on preassigned time slots. Bandwidth is allocated to each channel regardless of whether the station has data to transmit.

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3Com 5210 manual Appendix Glossary
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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.
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