RIP | Routing Information Protocol allows routers to update the routing tables |
| automatically (for example with information such as how many hops between |
| destinations). The version of RIP you select for the session must match the version |
| supported by the service provider. Versions RIP1 and |
| broadcast. Version RIP 2 is used for multicast. |
SEF | Severely Errored Frames is the incoming signal has at least four consecutive errored |
| framing patterns. |
SES | Severely Errored Seconds is the seconds during which more than 2,500 bipolar errors |
| are detected on the line. |
session | The time during which two computers maintain a communication connection. An |
| example is a connection configured between the Megabit Modem 400F, 500L, 600F, |
| and 700F and the service provider. |
SNMP | Simple Network Management Protocol is a protocol that specifies how to send |
| information between a NMS and managed devices on a network. The managed |
| devices run a program called an agent. The agent interprets SNMP request and |
| responds to them. SNMP is used to set device configurations, read device |
| configurations or read the device status. |
Spanning Tree | A bridging protocol that detects and prevents loops from occurring in a system |
| containing multiple bridges. |
subnet mask | A type of IP address that allows a site to use a single IP address for multiple physical |
| networks. |
TCP | Transmission Control Protocol is a transport protocol used to map inbound traffic |
| (from a remote IP address) to an internal (LAN) IP address. Establishes connection |
| with remote user before data transmission. |
TCP/IP | Transmission Control Protocol/Internet Protocol is a protocol used for |
| communications between computers over networks and the internet. |
TFTP | Trivial File Transfer Protocol is a protocol used to download card images or other files |
| from an external TFTP server to the NVRAM of any installed cards, or to upload files |
| from an installed card to an external TFTP server. |
trap receivers | PCs configured to receive SNMP traps (messages). |
traps | Autonomous, |
| network management station to indicate that an event has occurred. |
UAS | UnAvailable Seconds is the number of seconds during which the line is unavailable. |
UBR | Unspecified Bit Rate is an ATM traffic type used for LAN traffic. When network |
| congestion occurs, the data is stored in a buffer until it can be sent. |
120 | Megabit Modem 400F, 500L, 600F, and 700F User Manual |