Cisco ASR 1000 Series Software Configuration Guide

ModificationRelease
Support for the following SPAs was introduced on
the Cisco ASR 1000 Series Aggregation Services
Routers:
•
2-Port, 4-Port, and 8-Port OC-3c/STM-1 and
OC-12c/STM-4 POS SPA
•
1-Port OC-48c/STM-16 POS SPA
•
8-Port OC-3c/STM-1 POS SPA
•
1-Port OC-192c/STM-64 POS/RPR XFP SPA
Cisco IOS XE Release 2.4
Support for the following SPAs was introduced on
the Cisco ASR 1000 Series Aggregation Services
Routers:
•
2-Port OC-48c/STM-16 POS/RPR SPA
•
4-Port OC-48c/STM-16 POS/RPR SPA
Cisco IOS XE Release 2.2
Support for the following SPAs was introduced on
the Cisco ASR 1000 Series Aggregation Services
Routers:
•
2-Port OC-3c/STM-1 POS SPA
•
4-Port OC-3c/STM-1 POS SPA
•
1-Port OC-12c/STM-4 POS SPA
Cisco IOS XE Release 2.1
POS Technology Overview
Packet-over-SONET is a high-speed method of transporting IP traffic between two points. This technology
combines the Point-to-Point Protocol (PPP), High-level Data Link Control (HDLC), or Frame Relay with
Synchronous Optical Network (SONET) and Synchronous Digital Hierarchy (SDH) interfaces.
SONET is an octet-synchronous multiplex scheme defined by the American National Standards Institute
(ANSI) standard (T1.1051988) for optical digital transmission at hierarchical rates from 51.840 Mbps to 9.95
Gbps (Synchronous Transport Signal, STS-1 to STS-48) and greater. SDH is an equivalent international
standard for optical digital transmission at hierarchical rates from 155.520 Mbps (Synchronous Transfer
Mode-1 [STM-1]) to 9.95 Gbps (STM-16) and greater.
SONET specifications have been defined for single-mode fiber and multimode fiber. The POS SPAs allow
transmission over single-mode and multimode optical fiber at Optical Carrier 3, 12, 48, and 192 (OC-3, OC-12,
OC-48, and OC-192) rates.
SONET/SDH transmission rates are integral multiples of 51.840 Mbps. The following transmission multiples
are currently specified and used on the POS SPAs on the Cisco ASR 1000 Series Aggregation Services Routers:
• OC-3c/STM-1—155.520 Mbps
Cisco ASR 1000 Series Aggregation Services Routers SIP and SPA Software Configuration Guide, Cisco IOS
XE Everest 16.5
184 OL-14127-17
Overview of the POS SPAs
POS Technology Overview

Cisco ASR 1000 Series Specifications

General

Brand	Cisco
Model	ASR 1000 Series
Category	Network Router
Language	English