Cisco 10000 Series Configuration Manual page 359

T
Digital WAN carrier facility. T1 transmits DS1-formatted data at 1.544 Mbps through the telephone
T1
switching network.
Digital WAN carrier facility. T3 transmits DS3-formatted data at 44.736 Mbps through the telephone
T3
switching network.
A Cisco Technical Assistance Center. There are four TACs worldwide.
TAC
Standard terminal emulation protocol in the TCP/IP protocol stack. Telnet is used for remote terminal
Telnet
connection, enabling users to log in to remote systems and use resources as if they were connected to
a local system. Telnet is defined in RFC 854.
Trivial File Transfer Protocol. A simplified version of FTP that allows files to be transferred from one
TFTP
computer to another over a network.
U
See
Unchannelized DS3
V
Virtual tributary level n. The SONET format for mapping a lower-rate signal into a SONET payload.
VT-n
For example, VT-1.5 is used to transport a DS1 signal. See also
W
See WRED.
Weighted Random
Early Detection
Weighted random early detection. RED uses an algorithm to randomly discard packets.The result of the
WRED
drop is that the source detects the dropped traffic and slows its transmission. WRED combines the
capabilities of the RED algorithm with IP precedence. This combination provides for preferential
traffic handling for higher-priority packets. It can selectively discard lower-priority traffic when the
interface starts to get congested and provide differentiated performance characteristics for different
classes of service.
OL-8834-04
Clear channel DS3.
DS1 and SONET.
Cisco 10000 Series Router Line Card Configuration Guide
Glossary
GL-9