Panasonic 15000 manual Switched virtual path SVP, Switched voice, Switchover, Symmetric encryption

- 131 -

List of terms

switched virtual path (SVP)

1A type of virtual path (VP) that is established and torn down by subscriber applications on an as-needed basis. It is a logical connection that remains in place only for the duration of data transfer. User equipment signals the desired destination, and the connection route is selected automatically through SVP signaling.

2See also virtual path (VP) (page 142).

switched voice

1A Nortel Multiservice Switch 7400 node feature in which TDM traffic from a narrowband network is terminated at a Multiservice Switch 7400 node and dynamically routed over the ATM network.

2See also non-switched voice (page 91).

switchover

See hitless CP switchover (page 61).

symmetric encryption

A key is symmetric when both peers use the same private key, ensuring security.

synchronous digital hierarchy (SDH)

The international version of the Telcordia SONET standard, based on STM-1 frame. The basic line rate is 155.52 Mbit/s. SDH is defined by ITU-T.

synchronous equipment timing source (SETS)

Refers to the BITS output port on the CP. See building-integrated timing supply (BITS) (page 21).

synchronous optical network (SONET) standard

Aultra-high-speed fiber-optic transmission standard developed by Telcordia for fiber-based digital transmission networks. SONETV is the North American version of SDH and is based on STS-1.

System Network Architecture (SNA)

A proprietary network architecture developed by IBM. SNA shares some characteristics with the OSI reference model.

T1

See DS1 (page 44).

T3

Timing signal derived from an external 2 MHz (or 2 Mbit/s, no payload) synchronization interface.

Nortel Multiservice Switch 7400/15000/20000

Terminology

NN10600-005 7.2S1 Standard

PCR7.2 and up March 2006

Copyright © 2006, Nortel Nortel Confidential