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Quality of service (QoS) per port: weighted round-robin (WRR), random early detection
(RED), weighted random early detection (WRED)
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Simple Network Management Protocol (SNMP): E3 MIB, QoS MIB
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Input policing and output shaping
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Provider-side rate limiting
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Full data link connection identifier (DLCI) range with sparse channel numbering
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Per-DLCI queues with weighted deficit round-robin and strict priority
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Encapsulations:
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High-Level Data Link Control (HDLC)
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Frame Relay
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Circuit cross-connect (CCC)
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Translational cross-connect (TCC)
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Point-to-Point Protocol (PPP)
Software features
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Standard E3 BNC coaxial cable interfacesCables and connectors
One tricolor per port:
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Off—Not enabled
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Green—Online with no alarms or failures
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Amber—Online with alarms for remote failures
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Red—Active with a local alarm; router has detected a failure
LEDs
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Alarm indication signal (AIS)
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Equipment failure (does not affect service)
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Frame error
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Line code violation
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Loss of signal (LOS)
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Out of frame (OOF)
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Yellow alarm bit (A-bit) disagreements
Alarms, errors, and
events
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Layer 2 per-queue packet and byte countersInstrumentation
(counters)
E3 IQ PIC ■ 41
E3 IQ PIC