Motorola T3 Gebruikershandleiding - Pagina 44
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Quality of Service
Enable or disable WRED support. WRED adds further protection for data integrity in a contention based Ethernet
network by randomly discarding TCP packets according to administrator settable parameters for thresholds.
network qos wred config min-discard <min-discard> max-discard <max-discard>
Set the rate at which Ethernet frames will be discarded once the rate exceeds the thresholds. Note that two
discard rates are supported. Min-discard is the rate that frames are discarded when they reach the minimum
configured threshold. Max-discard is the rate that frames are discarded when they reach the maximum
configured threshold. Often, the max-discard rate will be set to 100.
network qos interface wred <eth<1-2>|port<1-25>(interface-id)> <queue low|medium|high|critical> <min-threshold 1-
100> <max-threshold 1-100>
Set the minimum and maximum buffer threshold for each queue, on each port. Once either threshold is crossed,
frames are discarded at the discard rates specified by the network qos wred config command.
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In dynamic mode, packets are classified by the 802.1P Ethernet precedence bit or IP TOS (precedence bits) in the
Diffserv byte. This definition is taken from the latest RFC 2475. Note that the IP TOS bits are defined as the three
most significant bits of the DiffServ byte.
Ethernet frames are mapped to transmission queues based on the following chart:
802.1P bit
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Motorola, Inc.
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IP TOS
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570510-001-00 rev A
Queue
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Medium
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High
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Critical
Critical
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