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Cisco CRS-1 Carrier Routing System SIP and SPA Hardware Installation Guide
OL-17439-01
Chapter 3 Overview: Cisco CRS-1 Shared Port Adapters
1-Port OC-192c/STM-64 POS/RPR XFP SPA Overview
1-Port OC-192c/STM-64 POS/RPR XFP SPA Interface Specifications
The framer processes incoming and outgoing SONET or SDH frames. The framer operates at
OC-192c/STM-64 line rates (9.95 Gbps).
Packet data is transported with a user-configured encapsul
ation (such as Point-to-Point Protocol [PPP])
and is mapped into the STS-192c/STM-64 frame.
The 1-Port OC-192c/STM-64 POS/RPR XFP SPA interf
ace is compliant with the following RFCs:
• RFC 1662, PPP in HDLC-like Framing
• RFC 2615, PPP over SONET/SDH
For information on SNMP MIB support, see “Implementing SNMP on Cisco IOS XR Software” in
Cisco IOS XR System Management Configuration Guide.
Note For Cisco IOS XR Software Release 3.8.0, the 1-Port OC-192c/STM-64 POS/RPR XFP SPA supports
the Dynamic Packet Transport (DPT) feature. The Cisco DPT family of products delivers scalable
Internet service, reliable IP-aware optical transport, and simplified network operations. The Spatial
Reuse Protocol (SRP) is a MAC-layer protocol developed by Cisco and is used in conjunction with Cisco
DPT products, which use a pair of counter-rotating rings in an optimum fashion to provide improved
bandwidth utilization over an equivalent SONET network.
1-Port OC-192c/STM-64 POS/RPR XFP SPA Optical Transceiver Modules,
Connectors, and Cables
The 1-Port OC-192c/STM-64 POS/RPR XFP SPA uses a single-mode, 9.95 Gbps, OC-192c optical fiber
(SONET STS-192c or SDH STM-64) optical transceiver module for SONET and SDH connection to the
network.
The 1-Port OC-192c/STM-64 POS/RPR XFP SPA supports th
e following types of optical transceiver
module:
• Single-mode short-reach (SR) XFP module—XFP-10GLR-OC192SR
• Single-mode intermediate-reach (IR) XFP module—XFP-10GER-OC192IR
• Single-mode very-long reach XFP module—XFP-10GZR-OC192LR
Cisco Systems qualifies the optics that are approved for use with its SPAs. As of Cisco IOS XR Software
Re
lease 3.4.0, the above-listed XFPs are the only optical transceiver modules qualified for use.
Use a single-mode optical fiber that has a mod
al-field diameter of 8.7 ±0.5 microns (nominal diameter
is approximately 10/125 microns) to connect your router to a network.