Juniper T320 Manual page 84

T320 Core Router Interface Module Reference
Hardware features
Software features
Cables and connectors
LEDs
Alarms, errors, and
events
Instrumentation
(counters)
68
Data service unit (DSU) functionality
Subrate and scrambling:
Digital Link/Quick Eagle
Kentrox
Larscom
ADTRAN
Verilink
B3ZS line encoding
M13 or C-bit parity
Full bit error rate test (BERT)
Local and remote loopback testing
Quality of service (QoS) per channel: weighted round-robin (WRR), random early detection
(RED), weighted random early detection (WRED)
Simple Network Management Protocol (SNMP): DS1 MIB, DS3 MIB
Dynamic, arbitrary channel configuration
Encapsulations:
Circuit cross-connect (CCC)
Translational cross-connect (TCC)
Frame Relay
High-Level Data Link Control (HDLC)
Point-to-Point Protocol (PPP)
Standard DS3 BNC coaxial cable interfaces
One tricolor per port:
Off—Not enabled
Green—Online with no alarms or failures
Yellow—Online with alarms for remote failures
Red—Active with a local alarm; router has detected a failure
Alarm indication signal (AIS)
Excessive zeros (EXZ)
Far-end block error (FEBE)
Frame error
Idle code, Idle received
Line code violation (LCV)
Loss of signal (LOS)
Out of frame (OOF)
Parity bit (P-bit) disagreements
Path parity error
Yellow alarm bit (X-bit) disagreements
Layer 2 per-queue and per-channel packet and byte counters
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