Avaya Configuring Frame Relay Services Manual de usuario Pagina 44

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Configuring Frame Relay Services
2-14
117376-C Rev. 00
Frame Relay Service Records
Bay Networks uses service records to define frame relay circuits. A service record
is a data structure that allows flexible grouping and characterization of VCs. A
service record can contain a single PVC or SVC, multiple PVCs or SVCs, or a
combination of PVCs and SVCs.
Service records:
Simplify network addressing for VCs because you define and associate only
one protocol address with groups of frame relay VCs.
Allow multiple groups of VCs per frame relay interface.
Enable you to group multiple VCs for each network protocol into separate
service records, thereby reducing the number of buffers needed per circuit
during broadcasts.
Lower customer costs by creating multiple broadcast domains.
Conserve resources because they require a small number of circuits.
Are easy to configure.
Default Service Record
The router creates the first service record automatically when you select frame
relay as your WAN protocol. This first service record is the default service record.
Any VCs not associated with another configured service record use the default
service record.
Release Under normal call clearing conditions, the network passes the
disconnect message through the network to the remote subscriber.
The subscriber receiving this disconnect message responds with a
release message. The network validates the release message and
passes it to the local subscriber.
Release complete Once the network receives a release message from the subscriber
and verifies it, the network returns a release complete message to
the subscriber. After receiving the release message from the
network, the subscriber responds with a release complete
message.
Table 2-4. Message Processing
(continued)
Message Type Message Processing
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