Cisco ASR 1000 Configuration Guide

19-5
Cisco ASR 1000 Series Aggregation Services Routers SIP and SPA Software Configuration Guide
OL-14127-08
Chapter 19 Configuring the 1-Port Channelized OC-3/STM-1 SPA and 1-Port Channelized OC-12/STM-4 SPA
Configuration Tasks
Step 4
Router(config-controller)# sts-1 sts1-# Specifies the SONET Synchronous Transport Signal (STS)
level and enters STS1 configuration mode, where:
• sts-1 #—Number from 1 to 3 for the 1-Port
Channelized OC-3/STM-1 SPA, and 1 to 12 for the
1-Port Channelized OC-12/STM-4 SPA.
Step 5
Router(config-ctrlr-sts1)# mode {ct3 |
ct3-e1 | t3 | vt-15}
Specifies the mode of operation of an STS-1 path, where:
• ct3—A STS-1 carrying a DS3 signal is divided into 28
T1s (Plesiochronous Digital Hierarchy [PDH]).
• ct3-e1—The channelized T3 is carrying E1 circuits.
• t3—STS-1 carries an unchannelized (clear channel)
T3.
• vt-15—A STS-1 is divided into seven Virtual Tributary
Groups (VTG). Each VTG is then divided into four
VT1.5’s, each carrying a T1.
Note In Cisco IOS XE Release 2.6, ct3-e1 is not
supported on the 1-Port Channelized
OC-12/STM-4 SPA.
Step 6
Router(config-ctrlr-sts1)# vtg vtg# Configures the T1 on the VTG, where:
• vtg#—Specifies the VTG number. For SONET
framing, values are 1 to 7.
Command Purpose

Cisco ASR 1000 Specifications

General

Brand	Cisco
Model	ASR 1000
Category	Network Router
Language	English