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Glossary F
Centillion 1200N ATM Switch User Manual B-27
NTP 297-8103-903
ESI
End System Identifier: This identifier distinguishes multiple nodes at the same level
in case the lower level peer group is partitioned.
ETSI
European Telecommunications Standards Institute: The primary
telecommunications standards organization.
Exception
A connectivity advertisement in a PNNI complex node representation that
represents something other than the default node representation.
Exit Border Node
The node that will progress a call over an outside link. This is the last node within
a peer group to see this call.
Exterior
Denotes that an item (e.g., link, node, or reachable address) is outside of a PNNI
routing domain.
Exterior Link
A link which crosses the boundary of the PNNI routing domain. The PNNI protocol
does not run over an exterior link.
Exterior Reachable Address
An address that can be reached through a PNNI routing domain, but which is not
located in that PNNI routing domain.
Exterior Route
A route which traverses an exterior link.
F
Fairness
As related to Generic Flow Control (GFC), fairness is defined as meeting all the
agreed quality of service (QOS) requirements, by controlling the order of service
for all active connections.