The ATM SPA is functionally similar to other ATM port adapters on the Cisco ASR 1000 Series Routers,
but because it is a different card type, the configuration for the slot is lost when you replace an existing
ATM port adapter with an ATM SPA in a SIP.
Note
•
RFC 2684:
Multiprotocol Encapsulation over ATM Adaptation Layer 5
(formerly RFC 1483).
•
Supports permanent virtual circuits (PVCs)
•
IEEE 802.1QinQ
•
ATM adaptation layer 5 (AAL5) for data traffic.
•
Uses small form-factor pluggable (SFP) optical transceivers, allowing the same ATM SPA hardware to
support multimode (MM), single-mode intermediate (SMI), or single-mode long (SML) reach, depending
on the capabilities of the SPA.
•
ATM section, line, and path alarm indication signal (AIS) cells, including support for F4 and F5 flows,
loopback, and remote defect indication (RDI).
•
Operation, Administration, and Maintenance (OAM) cells.
•
Online insertion and removal (OIR) of individual ATM SPAs from the SIP, as well as OIR of the SIPs
with ATM SPAs installed.
SONET/SDH Error, Alarm, and Performance Monitoring
•
Fiber removed and reinserted
•
Signal failure bit error rate (SF-BER)
•
Signal degrade bit error rate (SD-BER)
•
Signal label payload construction (C2)
•
Path trace byte (J1)
•
Section Diagnostics:
◦
Loss of signal (SLOS)
◦
Loss of frame (SLOF)
◦
Error counts for B1
◦
Threshold crossing alarms (TCA) for B1 (B1-TCA)
•
Line Diagnostics:
◦
Line alarm indication signal (LAIS)
◦
Line remote defect indication (LRDI)
◦
Line remote error indication (LREI)
◦
Error counts for B2
◦
Threshold crossing alarms for B2 (B2-TCA)
Cisco ASR 1000 Series Aggregation Services Routers SIP and SPA Software Configuration Guide, Cisco IOS XE
Everest 16.5
OL-14127-17
49
Overview of the ATM SPAs
SONET/SDH Error, Alarm, and Performance Monitoring