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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
exterior reachable address
An address that a node can reach through a PNNI routing domain but that is
not located in that PNNI routing domain.
external address plan (EAP)
An address plan that is not the Nortel Multiservice Switch internal address
plan. Examples of EAPs are a DPN internal address plan and an IP address
plan.
external border gateway protocol (EBGP)
BGP configuration in which sessions are established between routers in
different autonomous systems (ASs). See also
border gateway protocol
(BGP) (page 20) and multi-hop BGP (page 83).
external gateway (EG)
A connection to a non-Nortel Multiservice Switch external module (for
example, a connection to a DPN-100 module).
exterior gateway protocol (EGP)
An IP routing protocol that operates between autonomous systems on the
Internet. BGP-4 is replacing EGP.
external routing protocol
A routing protocol from another network. Routing of external protocols is done
either natively or using encapsulation. External protocols are routed natively
when the packet is routed directly according to the address contained in its
header. Encapsulation is used to completely envelop the external protocol
within a Nortel Multiservice Switch packet, using it for making routing
decisions.
fabric card
The circuit pack that performs the cell-switching activities between the
processor cards of a Nortel Multiservice Switch
15000, or Multiservice
Switch
20000 node.
fabric port
An interface to the fabrics of a Nortel Multiservice Switch 15000, or
Multiservice Switch
20000 node.
facsimile handling
The handling of in-band facsimile or modem data dynamically. On detection of
a facsimile or data call, echo cancellation is disabled and the voice
compression rate is adjusted to allow the facsimile or data information to be
transported to its destination.