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WRED
WRED is an acronym for Weighted Random Early Detection. It is an active queue management mechanism
that provides preferential treatment of higher priority frames when traffic builds up within a queue. A
frame's DP level is used as input to WRED. A higher DP level assigned to a frame results in a higher
probability that the frame is dropped during times of congestion.
WTR
WTR is an acronym for Wait To Restore. This is the time a fail on a resource has to be 'not active' before
restoration back to this (previously failing) resource is done.
Y
Y.1564
Y.1564 is an Ethernet service activation test methodology (SAM), which is an ITU-T standard for turning up,
installing and troubleshooting Ethernet-based services. It is the only standard test methodology that allows
for complete validation of Ethernet service-level agreements (SLAs) in a single test. ITU-T Y.1564 is designed
around three key objectives:
1. To serve as a network service level agreement (SLA) validation tool, ensuring that a service meets its
guaranteed performance settings in a controlled test time.
2. To ensure that all services carried by the network meet their SLA objectives at their maximum committed
rate, proving that under maximum load network devices and paths can support all the traffic as designed.
3. To perform medium- and long-term service testing, confirming that network elements can properly carry
all services while under stress during a soaking period.
ITU-T Y.1564 defines an out-of-service test methodology to assess the proper configuration and performance
of an Ethernet service prior to customer notification and delivery. (Wikipedia).
RocketLinx MP1204-XT User Guide: 2000644 Rev. A
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