
Configuring Frame Relay Services
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SVCs provide true bandwidth-on-demand service that can be customized based on
the application in use. For example, a short interactive session might use an SVC
with a low or zero committed information rate (CIR) or throughput rate, while a
large file transfer of time-critical data might require an SVC at a high CIR value.
PVC and SVC Comparison
Table 2-1 lists the protocols and features that PVCs and SVCs support.
Table 2-1. PVC and SVC Protocol and Feature Support
Protocol/Feature PVCs Support SVCs Support
IP, IPX
✔✔
AppleTalk
APPN
Bridging
DECnet
DLSw
OSI
VINES
XNS
✔
Data compression (WCP)
✔✔
Data encryption (WEP)
✔
Protocol prioritization
✔✔
Dial-on-demand
✔✔
Dial backup
✔✔
Congestion control
✔✔
Traffic shaping
✔✔
PVC pass-through
✔
Multiline
✔
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