Avaya Configuring Frame Relay Services Manual de usuario Pagina 48

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Configuring Frame Relay Services
3-8 114058 Rev. A
Controlling Congestion
Congestion occurs when a node receives more frames than it can process, or sends
more frames than the transmission line can transport. You can enable congestion
control on your network. When you enable congestion control, the router receives
congestion notification messages from the PVC experiencing congestion, and
drops all outbound traffic destined for that PVC until it no longer receives
congestion notifications.
When you enable congestion control, you can set the length of time during which
the router counts congestion notifications. You can also set the maximum number
of congestion notifications that the router can receive during this time period. If
the router receives this number of congestion notifications within the time period
you specify, it stops transmitting data. The router resumes transmission when it
stops receiving congestion notifications.
If you enable congestion control, all PVCs on the interface use congestion control
and the values you specify for the congestion timer and congestion counter, unless
you configure PVCs individually and either disable this feature or select other
values for the congestion control parameters.
Site Manager: Congestion Control parameter: page A-6, interface;
page A-10, service record
Site Manager: Congestion Timer parameter: page A-7, interface;
page A-10, service record
Site Manager: Congestion Counter parameter: page A-7, interface;
page A-11, service record
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