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2.8
Rate Control
The GSS-8T2SFP’s rate control works on a credit-based rate system that figuratively uses buckets to
track the bandwidth of each port. You can set a
bucket bit rate
to control the bandwidth of each port,
and set which packet type you want to monitor with this bucket.
The rate control function in this switch employs two buckets to track the rate of ingress (received)
packets. Each of the two buckets, Bucket 0 and Bucket 1, can be set to monitor a specified packet
type. For example, Bucket 0 could monitor broadcast packets, while Bucket 1 could monitor unicast
packets. Multiple packet types can be monitored by each bucket, and a packet type can be monitored
by both buckets.
The
Bucket bit rate
can be set by the
rate count
which range s from 1 to 125. The rate count value
must be set on a per port basis and bucket number. Whenever you set the rate count value, the switch
will auto- negotiate the current link speed (10/100/1000 Mbps) to calculate the resultant rate limit.
For example, if you set Bucket 0 on port 1’s rate count to a value of 20, the actual rate percentage
will be 16%. If the current link speed is 10Mbps, the rate limit will be 1.6Mbps. If the current link
speed is 100Mbps, the rate limit will be 16Mbps. If the current link speed is 1000Mbps, the rate limit
will be 160Mbps.
