
Customizing PPP
115391-A Rev. A 11-13
Setting Up Link Quality Monitoring
When you turn on the link quality monitoring and reporting function for an
interface, PPP monitors the quality of the point-to-point link as a percentage of
sent packets received on each end of the link. When the average quality falls
below the threshold you specify, PPP brings down the link. The driver software
automatically brings the link back up and renegotiates the connection.
By default, link quality monitoring is disabled. If you do not want to enable this
feature, accept the default value.
If two routers are configured for different link quality reporting periods, they
negotiate to the lower value, so that the period is the same on both sides of the
link.
Enabling Link Quality Monitoring and Reporting
To turn on link quality monitoring and reporting for the interface, set the Link
Quality Protocol parameter to LINKQR.
When you enable link quality monitoring and reporting through the link quality
protocol, you are turning on monitoring only for the local router. The router on
which you enable it is responsible for monitoring link quality for the connection.
By default, link quality monitoring and reporting is disabled.
If you do not enable link quality monitoring and reporting, ignore the rest of the
link quality parameters.
Note: PPP supports link quality monitoring over standard synchronous
interfaces only. PPP does not support link quality monitoring over
asynchronous or High-Speed Serial Interfaces (HSSI). BayStream software,
however, does support both link quality monitoring and link quality reporting
over HSSI interfaces.
Site Manager: Link Quality Protocol parameter: page A-89
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