17 GLOSSARY |
|
TERM | DEFINITION |
ROM | |
router | On IP networks, a device connecting at least two networks, |
| which may or may not be similar. A router is typically located at a |
| gateway between networks. A router operates on OSI network |
| layer 3. It filters packets based on the IP address, examining |
| the source and destination IP addresses to determine the |
| best route on which to forward them. |
| A router is often included as part of a network switch. A router |
| can also be implemented as software on a computer. |
routing table | A table listing available routes that is used by a router to |
| determine the best route for a packet. |
RTS | request to send |
S
TERM | DEFINITION |
scope | The set of IP addresses that a DHCP server can lease to clients. |
server | In a client/server architecture, a dedicated computer that supplies |
| files or services such as file transfer, remote login, or printing to |
| clients. |
service | A company providing data or telephone services to |
provider | subscribers. |
SDU | service data unit |
SID | A service ID is a unique |
| cable modem or gateway that identifies the traffic type it carries |
| (for example, data or voice). The SID provides the basis for the |
| CMTS to allocate bandwidth to the cable modem and |
| implement CoS. |
SME | small and medium enterprise |
SMTP | Simple Mail Transfer Protocol is a standard Internet protocol for |
| transferring |
SNMP | Simple Network Management Protocol is a standard to monitor |
| and manage networks and network devices. Data is exchanged |
| using PDU messages. |
SOHO | small office home office |
spectrum | A specified range of frequencies used for transmission of |
| electromagnetic signals. |
spectrum | An allocation of portions of the available electromagnetic |
allocation | spectrum for specific services, such as AM, FM, or personal |
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