Layer 2 Features - Cisco ASR 1000 Series Software Configuration Manual

Layer 2 Features

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