SPA-4XOC3-POS-V2
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Physical interface |
• OC-3c/STM-1 SFP optics module (refer to optical parameters in Table 2) • Visual status indicators (LEDs): • SPA status LED • Per-port LEDs • Carrier and alarm • Active and loopback |
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Protocols |
• RFC 1662 PPP in High-Level Data Link Control (HDLC)-like framing • RFC 2615 Point-to-Point Protocol (PPP) over SONET/SDH • RFC 2427, Multiprotocol Interconnect over Frame Relay • IPv4/IPv6 |
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Features and functions |
Synchronization • Local (internal) or loop timed (recovered from network) • Pointer activity monitoring Local (diagnostic) and line (network) loopback Payload mapping • POS with 1 + X^43 self-synchronous scrambler SONET/SDH compliance • Telcordia (Bellcore) GR-253-CORE (as applicable) • ANSI T1.105, T1.231 • ITU-T G.707, G.957, G.825 (as applicable) Supported SONET/SDH alarm and signal events • Signal failure bit error rate (SF-ber) • Signal degrade bit error rate (SD-ber) • Signal label payload construction (C2) • Path trace byte (J1) • Section • Loss of signal (LoS) • Loss of frame (LoF) • Error counts for B1 • Threshold crossing alarms (TCA) for B1 • Line • Line alarm indication signal (LAIS) • Line remote defect indication (LRDI) • Line remote error indication (LREI) • Error counts for B2 • TCA for B2 • Path • Path alarm indication signal (PAIS) • Path remote defect indication (PRDI) • Path remote error indication (PREI) • Error counts for B3 • TCA for B3 • Loss of pointer (LoP) • Positive stuffing event (PSE) • Negative stuffing event (NSE) • Path unequipped indication signal (PUNEQ) • Path payload mismatch indication signal (PPLM) |
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Network management |
• RFC 2558 MIB (SONET/SDH) • Simple Network Management Protocol (SNMP) |
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Reliability and availability |
• Online insertion and removal (OIR) • Field-replaceable SFP optical modules • 1+1 SONET Automatic Protection Switching (APS) and SDH Linear Multiplexer Section Protection (MSP) protocols • Single SPA software reset |