Terminal Access Controller Access Control System Plus. Authentication method for validating users who attempt to access the router using telnet.
TCP
Transmission Control Protocol. Works in conjunction with Internet Protocol (IP) to send data over the Internet. Divides a message into packets and tracks the packets from point of origin to destination.
ToS
Type of service.
traffic engineering
Process of selecting the paths chosen by data traffic in order to balance the traffic load on the various links, routers, and switches in the network.
See also [MPLS]
transit area
In OSPF, an area used to pass traffic from one adjacent area to the backbone or to another area if the backbone is more than two hops away from an area.
transit router
In MPLS, any intermediate router in the LSP between the ingress router and the egress router.
tunnel
Private, secure path through an otherwise public network.
