Cisco ASR 900 Series Configuration Guide

PatternsModes
• 0s—Repeating pattern of zeros.
• 1s—Repeating pattern of ones.
• 2^11 2^11-1 test pattern—Pseudo-random test
pattern that is 2,048 bits in length.
• 2^15-O.151—Pseudo-random O.151 test pattern
that is 32,768 bits in length. Error and Jitter
measurement of 1544, 2048, 6312, 8448, 32064,
44736 kbps.
• 2^20-O.153—Pseudo-random O.153 test pattern
that is 1,048,575 bits in length.
• 2^20-O.151—Pseudo-random QRSS O.151 test
pattern that is 1,048,575 bits in length. Error
and Jitter measurement upto 72 kbps.
• 2^23-O.151—Pseudo-random 0.151 test pattern
that is 8,388,607 bits in length. Error and Jitter
measurement of 34368 kbps and 139264 kbps
•
2^31 2^31-1 test pattern
•
2^9 2^9-1 test pattern
SONET T3 or E3 or CT3 (T1) or VTG T1 or VT
levels
Concatenated SONET Frames
Twenty-eight VTs make up one STS-1. Three STS-1s made up an STS-3 and so on. Any one byte within the
STS frame has a direct relationship to a base VT that helps to make up the STS.
A lower-case "c" in the STS rate stands for "concatenated", and indicates that the interface hardware is not
channelized. Examples of concatenated interfaces are STS-3c and STS-12c.
The STS-1s may be concatenated into sets of 3 or 12 or 24 or 48 or 192 to form STS-3c, STS-12c, and so on.
The STS-1s may be combined only at specific STS-n boundaries within an OC port.
SONET Path Level Configuration Parameters
The following parameters affect SONET configuration at the path level:
• BERT — Starts the BERT test.
• Clock — Specifies the clock source for a path.
• Exit — Exits from SONET path configuration mode.
• Loopback — Sets the entire path in the loopback mode.
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)
26
Configuring SONET
Concatenated SONET Frames

Cisco ASR 900 Series Specifications

General

Brand	Cisco
Model	ASR 900 Series
Category	Network Router
Language	English