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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
control plane protection (CPP)
An IP feature designed to protect the Nortel Multiservice Switch against
certain denial of service (DoS) attacks on the control plane. This control plane
can be defined as all packets that have locally destined IP addresses within a
VR, VCG, RTR, or VRF address space and are terminating on the
Multiservice Switch node.
control processor (CP)
A type of processor card optimized to support the software that performs
complex, memory-intensive processes. Among other things, these processes
parse operator commands, and modify and display provisioning data. The
control processor also supports the administration interfaces for the Nortel
Multiservice Switch node. Each node must have an active control processor
and can also have (for redundancy) a standby control processor. Each control
processor contains the disk, a DCE V.24 interface, and an Ethernet interface
to manage the node.
control processor (CP) switchover
The process of the standby CP becoming active. This process can occur upon
CP failure, restart of the active CP, a manual reset of the CP, or when a
switchover is invoked manually using the “Switchover Lp” command.
convergence sublayer (CS)
A sublayer of an ATM adaptation layer.
Coordinated Universal Time (UTC)
A time standard that Nortel Multiservice Switch software uses for establishing
network time, that is equivalent to Greenwich Mean Time (GMT). GMT is the
time at the Greenwich meridian (0 degrees longitude).
cooling unit
The cooling unit is a hardware component of a Nortel Multiservice Switch
node. It contains a forced-air cooling system that ensures adequate cooling of
the processor cards. For more information, see NN10600-170 Nortel
Multiservice Switch 7400 Hardware Description or NN10600-120 Nortel
Multiservice Switch 15000/20000 Hardware Description.
core networking
Encompasses the three Nortel Multiservice Switch networking systems:
PORS, and DPRS.
CoS
See class of service (IP CoS) (page 28).
CP
See control processor (CP) switchover (page 35)