Quality of Service (QoS) Classification
Classification
As specified in the general QoS flow scheme (see Quality of Service (QoS) (on page 7-1)),
frames are additionally handled on egress direction of HSL port prior to being forwarded to
the HSL wire. Throughput of this additional functionality is up to 1000 Mbps. For this
reason,for proper QoS functioning, summary of rates on access ports (ETH-x) should not
exceed 1000 Mbps.
NOTE: Access can be limited by either:
Egress rate limiting on ports of the NE connected to the ML NE (preferred solution, as
the frames are dropped according to the NE classification results).
By ingress rate limiting on ML NE ports (not recommended, since frames arriving to the
wire are dropped prior to being classified on the ML NE).
Identification Rules and Services (see EVC Configuration (on page 10-1)) configured for
HSL only, are additionally applied to the traffic and may be either equal to or differ from the
all-ports-applicable Classification Tables.
ML700 models by Factory default provide rules which are equal to the By L2 Priority
classification scheme selected on all Ethernet ports, and apply default according to the L2
Priority (COS) Classification Configuration table settings.
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