Glossary F
Centillion 1200N ATM Switch User Manual B-27
NTP 297-8103-903
ESI
End System Identifier: This identifier distinguishes multip le nodes at the same le vel
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 defau lt 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), fairnes s is defined as meeting all the
agreed quality of service (QOS) requirements, by controlling the order of service
for all active connections.