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List of terms

T4

Timing towards a 2 MHz (or 2 Mbit/s, no payload) synchronization interface.

tag control information (TCI)

Tag control information (TCI) is a subheader of the IEEE 802.1Q tag header. It consists of two octets encoded with user-priority bits, a canonical format indicator field, and a VLAN identifier.

tag protocol identifier (TPID)

Tag protocol identifier (TPID) is a subheader of the IEEE 802.1Q tag header. It consists of two octets encoded with the 802.1Q tag type for VLANs. The format of the encoding is dependent on the type of encoding supported: SNAP or Ethernet.

tandem node

A node between the ingress and egress nodes that decides independently the best packet forwarding route to the egress node identified in the packet. See egress node (page 47) and ingress node (page 64).

tandem pass through (TPT)

A software process that allows MVP-E FPs on tandem Nortel Multiservice Switch nodes to dynamically detect each other and pass, without modification, compressed voice data through an intermediate voice switch. Voice Transport and Voice Networking support TPT.

TC

See trunk conditioning (TC) (page 137).

TCI

See tag control information (TCI) (page 132).

TCP

See transmission control protocol (TCP) (page 136).

TDM

See time-division multiplexing (TDM) (page 133).

TDMA

See time-division multiple access (page 133).

TDP

See traffic descriptor parameter (TDP) (page 135).

TDS

See transparent data service (TDS) (page 136).

Nortel Multiservice Switch 7400/15000/20000

Terminology

NN10600-005 7.2S1 Standard

PCR7.2 and up March 2006

Copyright © 2006, Nortel

Nortel Confidential

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Panasonic 15000 manual Tci, Tcp, Tdma, Tdp, Tds