Software release
- JUNOS 5.7 and later
Description
- One STM1 port
- Power requirement: 0.39 A @ 48 V (18.6 W)
- Intelligent queuing (IQ) PICs support fine-grained queuing per logical interface.
- Channelization: STM1c, fractional E1, framed and unframed DS0
Hardware features
- Packet buffering, Layer 2 parsing
- Local and remote loopback testing
Software features
- Quality of Service (QoS) per channel: Weighted Round Robin (WRR), Random Early Drop (RED), Weighted Random Early Drop (WRED)
- Simple Network Management Protocol (SNMP): SONET/SDH MIB, T1/E1 MIB
- Dynamic, arbitrary channel configuration
- Full Bit Error Rate Testing (BERT) patterns at E1 and DS0 levels
- Encapsulations:
- High-level Data Link Control (HDLC)
- Frame Relay
- Multiprotocol Label Switching (MPLS) circuit cross-connect (CCC)
- MPLS translational cross-connect (TCC)
- Point-to-Point Protocol (PPP)
Cables and connectors
- Duplex SC/PC connector (Rx and Tx); single-mode intermediate-reach fiber
LEDs One tricolor per port:
- Off—Not enabled
- Green—Online with no alarms or failures
- Amber—Online with alarms for remote failures
- Red—Active with a local alarm; router has detected a failure
Alarms, errors, and events
- Alarm indication signal (AIS-L, AIS-P)
- Bit error rate signal degrade (BERR-SD), Bit error rate signal fail (BERR-SF)
- Bit interleaved parity errors B1, B2, B3 (CV-S, CV-L, CV-P)
- Errored beconds (ES-S, ES-L, ES-P), Far-end bit errors REI-L, REI-P (CV-LFE, CV-PFE), Far-end errored seconds (ES-LFE, ES-PFE), Far-end severely errored seconds (SES-LFE, SES-PFE), Far-end unavailable seconds (UAS-LFE, UAS-PFE)
- Loss of frame (LOF), Loss of pointer (LOP-P), Loss of signal (LOS)
- Payload mismatch (PLM-P), Payload unequipped (UNEQ-P)
- Remote defect indication (RDI-L, RDI-P)
- Severely errored framing (SEF), Severely errored framing seconds (SEFS-S), Severely errored seconds (SES-S, SES-L, SES-P), Unavailable seconds (UAS-L, UAS-P)
Instrumentation (counters)
- Layer 2 per-queue and per-channel packet and byte counters
