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List of terms
Nortel Multiservice Switch 7400/15000/20000
Terminology
NN10600-005 7.2S1 Standard
PCR7.2 and up March 2006
Copyright © 2006, Nortel Nortel Confidential
DNA
See data network address (DNA) (page 39).
DNSIX
See Defense Network Secure Information Exchange (DNSIX) (page 41).
domain
See PNNI routing domain (page 103).
domain-based rerouting (DBR)
An ATM Forum standard protocol that enables the PNNI network to employ a
rerouting mechanism that protects a connection segment within one or more
local rerouting domains.
double-ended accounting
Accounting records are generated at both the ingress and egress ends of the
connection. This option is available for both frame relay and ATM accounting
features. BothEnds is another term for a double-ended accounting record for
frame relay accounting. Double-ended accounting is recommended for ATM
accounting over single-ended accounting to ensure the records reflect the
actual amount of data transported from end to end.
downspeeding
In bit-transparent data service (BTDS) software, the capability of decreasing
the data rate by adjusting the physical clock speed of the line in response to
congestion.
DPN
See data packet network (page 39).
DPN gateway
A Nortel Multiservice Switch node-to-DPN connection. Its provisioning is
similar to that of a Multiservice Switch trunk.
DPN routing
See dynamic packet routing system (DPRS) (page 45).
DPNSS 1
See Digital Private Network Signaling System No 1 (DPNSS 1) (page 42).
DP
See discard priority (DP) (page 42) and drop precedence (DP) (page 44).
DPO
See data path object (DPO) (page 39).