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User Manual for the NETGEAR 7200 Series Layer 2 Managed Switch Software
B-16 Glossary
202-10010-01
STP
Spanning Tree Protocol. See “802.1D” on page 1 for more information.
stub area
OSPF area that carries a default route, intra-area routes, and interarea routes, but does not carry external
routes. Virtual links cannot be configured across a stub area, and they cannot contain an ASBR. Compare
with non-stub area. See also ASAM and OSPF. (Cisco Systems Inc.)
Subnet Mask
Combined with the IP address, the IP Subnet Mask allows a device to know which other addresses are local
to it, and which must be reached through a gateway or router.
Switch
A device that interconnects several LANs to form a single logical LAN that comprises of several LAN
segments. Switches are similar to bridges, in that they connect LANs of a different type; however they
connect more LANs than a bridge and are generally more sophisticated.
SX
See “SimpleX signaling” on page 15.
T
Telnet
A character-based UNIX application that enables users with a Telnet server account to log on to a UNIX
computer and utilize its resources.
TFTP
See “Trivial File Transfer Protocol” on page 16.
Telnet
A TCP/IP application protocol that provides a virtual terminal service, allowing a user to log into another
computer system and access a device as if the user were connected directly to the device.
Traffic prioritization
Giving time-critical data traffic a higher quality of service over other, non-critical data traffic.
Trivial File Transfer Protocol
TFTP is a simple form of the File Transfer Protocol (FTP). TFTP uses the User Datagram Protocol (UDP, a
direct protocol used to communicate datagrams over a network with little error recovery) and provides no
security features. It is often used by servers to boot diskless workstations, X-terminals, and routers.