3Com CoreBuilder 7000 Operation Manual page 251

Operation and
Maintenance cell
(OAM)
out-of-band
peer group
peer group leader
physical link
PNNI Routing Control
Channel
PNNI
peer group
point-to-multipoint
call
point-to-point call
Protocol Data Unit
(PDU)
PTSE
PVC
A cell that contains ATM LM information. It does not form part of the
upper layer information transfer.
Transmission of auxiliary information e.g., management messages, over
a medium other than that used by the system users.
P
A set of logical nodes which are grouped for purposes of creating a
routing hierarchy. PTSEs are exchanged among all members of the
group.
A node which has been elected to perform some of the functions
associated with a logical group node.
Any connection between two nodes in the lowest level hierarchy.
VCCs used for the exchange of PNNI routing protocol messages.
Private Network to Network Interface. A routing information protocol
that enables extremely scalable, full function, dynamic multi-vendor
ATM switches to be integrated in the same network.
A set of logical nodes which are grouped for purposes of creating a
routing hierarchy. PTSEs are exchanged among all members of the
group.
A one-way call or connection that has only one source, but may have
many destinations.
A two-way call or connection that has one source and one destination.
A unit of data specified in a layer protocol and consisting of protocol
control information and layer user data.
PNNI Topology State Element. A collection of PNNI information that is
flooded among all logical nodes within a peer group.
Permanent Virtual Connection. A basic connection method that
requires the user to define each connection manually.
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LOSSARY