Cisco ASR 1000 Series

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Path Diagnostics:
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Path alarm indication signal (PAIS)
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Path remote defect indication (PRDI)
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Path remote error indication (PREI)
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Error counts for B3
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Threshold crossing alarms for B3 (B3-TCA)
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Loss of pointer (PLOP)
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New pointer events (NEWPTR)
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Positive stuffing event (PSE)
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Negative stuffing event (NSE)
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The following loopback tests are supported:
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Network (line) loopback
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Internal (diagnostic) loopback
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Supported SONET/SDH synchronization:
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Local (internal) timing (for inter-router connections over dark fiber or wavelength division
multiplexing [WDM] equipment)
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Loop (line) timing (for connecting to SONET/SDH equipment)
◦ +/– 4.6 ppm clock accuracy over the full range of the operating temperature
Layer 2 Features
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Supports the following encapsulation types:
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AAL5SNAP (LLC/SNAP)
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AAL5MUX (VC multiplexing)
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AAL5NLPID
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Supports the following ATM traffic classes and per-VC traffic shaping modes:
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Constant bit rate (CBR) with peak rate
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Unspecified bit rate (UBR) with peak cell rate (PCR)
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Non-real-time variable bit rate (VBR-nrt)
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Variable bit rate real-time (VBR-rt)
Cisco ASR 1000 Series Aggregation Services Routers SIP and SPA Software Configuration Guide, Cisco IOS
XE Everest 16.5
50 OL-14127-17
Overview of the ATM SPAs
Layer 2 Features