Port Configuration Command Set
Setting Flow Control and Thesholds
Matrix E1 Series (1G58x-09 and 1H582-xx) Configuration Guide 4-31
4.3.6.4 set port buffer threshold
Use this command to configure buffer threshold settings for a group of ports. This command applies
priority queue or buffer percentages to various types of ingress or egress thresholds, and can also
be used to reset all thresholds back to default values. Ingress thresholds are used for buffer control
at the point the frame enters the switch. Egress thresholds are used for buffer control at the point
after the frame has been accepted into the system, and before it has been transmitted out the
destination port.
set port buffer threshold threshold portgroup {queue0 queue1 queue2 queue3 |
receive-buffers xon-limit xoff-limit | unicast-per-port multicast router-block}
Syntax Description
threshold Sets the threshold type. Valid entries and their
corresponding actions are:
• IngressRx - controls frames entering the switch for a
given port.
• IngressHOL - drops all frames after the set percentage
of buffers for the given priority queue are awaiting
transmission to other port destinations.
• IngressSoftHOL - drops frames marked as discardable
after the set percentage of buffers for the given priority
queue are awaiting transmission to other port
destinations.
• EgressUniPrio - sets buffer percentages per port, per
priority queue for unicast traffic.
• EgressMultiPrio - sets buffer percentages per port, per
priority queue for multicast traffic.
• EgressAllPrio - sets buffer percentages per port, per
priority queue for multicast and unicast traffic.
• EgressHOL - drops all frames after the set percentage of
buffers for the given priority queue are waiting to be
transmitted on their destination port queue.
• EgressSoftHOL - drops frames marked as discardable
after the set percentage of buffers for the given priority
queue are awaiting transmission to other port.
destinations.
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