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Quality of service (QoS) per channel: weighted round-robin (WRR), random early detection
(RED), weighted random early detection (WRED)
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Simple Network Management Protocol (SNMP): DS1 MIB, DS3 MIB
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Dynamic, arbitrary channel configuration
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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 DS3 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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Excessive zeros (EXZ)
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Far-end block error (FEBE)
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Frame error
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Idle code, Idle received
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Line code violation (LCV)
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Loss of signal (LOS)
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Out of frame (OOF)
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Parity bit (P-bit) disagreements
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Path parity error
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Yellow alarm bit (X-bit) disagreements
Alarms, errors, and
events
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Layer 2 per-queue and per-channel packet and byte countersInstrumentation
(counters)
30 ■ Channelized DS3 IQ PIC
T1600 Internet Routing Node PIC Guide