Panasonic 15000 - Manual (Page 36)

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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
CPP
See control plane protection (CPP) (page 35)
CPCS
See common part convergence sublayer (CPCS) (page 31)
CPE
Customer premises equipment.
CPeD
A control processor with external (BITS) DS1 timing support.
C-plane
See control plane (C-plane) (page 34) .
CQC
See cell queue controller (CQC) (page 26) .
CQC function processor
A type of Nortel Multiservice Switch ATM node function processor that uses a
cell queue controller (CQC) ASIC. This type of function processor was the
original ATM FP on Multiservice Switch nodes.
CQM
See cell queue memory (CQM) (page 26) .
crankback
A mechanism in ATM networking that partially releases a connection setup in
progress when that setup request encounters a failure in the network. This
mechanism allows ATM routing protocols to perform alternate routing.
CR
See call router (CR) (page 23) .
critical IP address
An IP interface on the local router. If the VRRP virtual router configuration
includes a critical IP interface address, a change in state to that IP interface
causes a role switch in that VRRP virtual router.
CRC-4
A cyclic redundancy check pattern used on an E1 line.
CRC-6
A cyclic redundancy check pattern used in extended superframe (ESF) mode
on a DS1 line.