3Com CoreBuilder 9000, Руководство пользователя

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Virtual Channels 353
Permanent Virtual
Channels
You establish a permanent virtual channel (PVC) manually by
management.
An established PVC connection is not automatically released and is not
dynamically checked and reinitiated.
The characteristics of the PVC connection include:
Connections initiated by the network administrator
Connections established and released manually
Long-term duration connections in a LANE environment
Point-to-point and point-to-multipoint connections
Setting up PVCs
For information about how to set up a PVC, See “Create Permanent
Virtual Channel (PVC)” on page 168.
.
Table 44 Comparison of SVC and PVC
SVC PVC
Demand connections Permanent connections
Not automatically reestablished
after network failure Automatically reestablished after
network failure
Remain active for arbitrary amount
of time in the LANE environment Remain active for long periods of
time
Supported by Signaling standard Supported by MIB or other
management entity