Juniper Networks Field Guide and Reference

Terminal Access Controller Access Control System Plus. Authentication method for validating users who attempt to access the router using telnet.

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.

Type of service.

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.

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.

In MPLS, any intermediate router in the LSP between the ingress router and the egress router.

Private, secure path through an otherwise public network.