Cisco ASR 900 Series Configuration Guide

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Associated Commands, page 64
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Additional References for Configuring SONET on 1-Port OC192/STM-64 or 8-Port
OC3/12/48/STM-1/-4/-16 Interface Module, page 67
Overview of SONET
SONET is a set of standards that define the rates and formats for optical networks specified in GR–253–CORE.
SONET is based on a structure that has a basic frame format and speed. The frame format used by SONET
is the Synchronous Transport Signal (STS), with STS-1 as the base-level signal at 51.84 Mbps. An STS-1
frame can be carried in an OC-1 signal.
SONET has a hierarchy of signaling speeds.
Restrictions for SONET
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Rate combinations are 0-1, 2-3, 4-5, 6-7 and 8. A maximum rate of 4XOC-48 is supported on ports 0-7.
4XOC-48 can be configured in any one port of a port-group and other port is not used.
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Only 16 BERT Patterns can be configured at a time on 1-Port OC192/STM-64 or 8-Port
OC3/12/48/STM-1/-4/-16 Module.
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VT1.5 VT cannot be configured if VT1.5 T1/DS1 is configured with the same KLM value.
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PMON fields are not supported for VT1.5 VT and DS3 or T3.
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PMON Far-end parameters are not supported.
Restrictions on Bandwidth
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Total available bandwidth for 1-Port OC192/STM-64 or 8-Port OC3/12/48/STM-1/-4/-16 Module is
10G.
The following configuration is blocked and an error message is displayed after the maximum bandwidth
is utilized:
rate OC3| OC12| OC48| OC192
The bandwidth of adjacent ports should not exceed OC-48.
The following table shows the bandwidth used by different rates:
Table 1: Bandwidth Used by Different Rates
BandwidthRate
155.52 MbpsOC-3
622.08 MbpsOC-12
2.4 GbpsOC-48
9.6 GbpsOC-192
1-Port OC-192 or 8-Port Low Rate CEM Interface Module Configuration Guide, Cisco IOS XE Everest 16.7.x
(Cisco ASR 900 Series)
20
Configuring SONET
Overview of SONET

Cisco ASR 900 Series Specifications

General

Brand	Cisco
Model	ASR 900 Series
Category	Network Router
Language	English