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List of terms

BITS

See building-integrated timing supply (BITS) (page 21).

bit-transparent data service (BTDS)

Nortel Multiservice Switch application that transports continuous synchronous data (isochronous) that has already been subjected to some form of encoding across the network without interpretation. The continuous data stream is broken into fixed sized cells and sent through the network.

block

A a series of contiguous memory locations. User data is stored in a block. All blocks are assumed to be the same length, usually a binary (power of 2) number of words. Memory blocks are linked together to form buffers.

BNX

The Bay Networks network element running hyperstream software.

BNX-Iwf

BNX interworking function. The set of capabilities that permits frame relay services over IP connections between virtual routers on a Nortel Multiservice Switch 15000 or Multiservice Switch 20000 node and a Bay Networks network element running hyperstream software (BNX).

BNX-Iwf DLCI

BNX interworking function DLCI. A type of FrUni DLCI that is required for interworking between the Bay Networks network element running hyperstream software (BNX) and the Nortel Multiservice Switch 15000 or Multiservice Switch 20000 node supporting frame relay over IP.

BOM

See beginning of message (BOM) (page 19).

border gateway protocol (BGP)

Border gateway protocol (BGP) is an inter-autonomous systems routing protocol for the Internet.

border node

A logical node at the edge of some kind of networking boundary, such as a topology region, peer group, or cluster.

bootstrap router (BSR)

A dynamically elected router within a PIM domain that is responsible for constructing the RP-Set and originating bootstrap messages.

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 Bits, Bnx, Bom