
Customizing Frame Relay
117376-B Rev. 00 3-29
Controlling Congestion for SVCs
Congestion occurs when a node receives more frames than it can process, or sends
more frames than the transmission line can transport. When you enable
congestion control, the router receives congestion notification messages from the
SVC experiencing congestion, and drops all outbound traffic destined for that
SVC 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.
6. Choose the SVC option record that has
values in the following parameters that
match the remote end of the SVC
connection.
• Remote Party Number
• Remote Party SubAddress
(optional)
• Remote Party Number Plan
• Remote Party Type of Number
7. Set the following parameters, using Help
or the parameter descriptions that begin
on page
A-45.
• X.213 Data Priority
• X.213 Data LQA Priority
• X.213 Gain Priority
• X.213 Gain LQA Priority
• X.213 Keep Priority
• X.213 Keep LQA Priority
8. Click on Apply. Your changes take effect.
9. Click on Done. You return to the Frame Relay Service
List window.
10.Click on Done. You return to the main Configuration
Manager window.
Site Manager Procedure
(continued)
You do this System responds
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