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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
cards. One-for-n FP sparing requires a sparing panel and only applies to
electrical FPs (copper-based as opposed to fiber optical). See also
spare card
(page 125).
equivalent bit rate (EBR)
The bandwidth (in bit/s) that the network reserves for a FR-ATM connection.
The EBR or requested bandwidth computation for each connection request
determines the CAC mechanism.
equivalent cell rate (ECR)
The bandwidth (in cell/s) that the network reserves for a particular ATM
connection.
ER
See explicit rate (ER) (page 50).
ESD jack
A jack located on the Nortel Multiservice Switch node for plugging in an
antistatic wrist strap to protect the hardware against electrostatic discharge.
ESF
See extended superframe (ESF) (page 50).
Ethernet
A physical and data link layer protocol that follows the IEEE 802.3 standard or
the related Xerox, Digital, and Intel Ethernet standard.
Ethernet address
A 48-bit media access layer (MAC) address composed of an assigned six-
octet manufacturer’s code and a unique number (such as a serial number)
provided by the manufacturer.
ETSI
European Telecommunications Standards Institute. A telecommunications
standards body.
ETSI QSIG
European Telecommunications Standards Institute Q interface signaling. A
common channel signaling protocol supported by the Nortel Multiservice
Switch Voice Networking service.
European digital subscriber signaling system number one (EDSS1)
A common channel signaling protocol supported by the Nortel Multiservice
Switch Voice Networking service.