3Com 3C780 User Guide - Page 168

Glossary 7 Station STP Telnet TFTP Thru state Token Tree Tree-mode connection Trunk An addressable node on an FDDI network capable of transmitting, repeating, and receiving information. A station has exactly one SMT, at least one MAC, at least one PHY, and at least one PMD. Shielded Twisted-Pair. Shielded four-conductor electrical cable that can be used as the communication medium on an FDDI ring in place of optical fiber. The Internet standard protocol for remote terminal connection service. Telnet lets a user interact with a remote time-sharing system at another site as though the user's terminal connected directly to the hub or concentrator. Trivial File Transfer Protocol. A simplified version of the File Transfer Protocol (FTP) used to transfer files. The condition in which both rings are fully functional. The special frame that passes from station to station on an FDDI ring any time the ring can carry data. The token is captured by a station that is ready to transmit data, and is released back to the ring at the end of the allotted transmission time. During token-capture time, only the station possessing the token can transmit data. A physical topology consisting of a hierarchy of master-slave connections between a concentrator and other FDDI nodes (including subordinate concentrators). A connection between tree ports (M ports). A physical loop topology, either open or closed, employing two optical fiber signal paths, one in each direction, forming a sequence of peer connections between FDDI nodes.