Cisco ASR 1000 Configuration Guide

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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
Configuring Channelized DS3 Mode
To configure channelized DS3 mode, complete the following steps:
Command Purpose
Step 1
Router(config)# controller sonet
slot/subslot/port
Selects the controller to configure and enters controller
configuration mode, where:
• slot/subslot/port—Specifies the location of the interface. See
the
“Specifying the Physical Address for Controller and
Interface Configuration” section on page 19-2.
Step 2
Router(config-controller)# sts-1
sts1-#
Selects STS mode and enters sts1 configuration mode.
• sts-1#—A value from 1 to y, y being the SONET STS level.
Step 3
Router(config-ctrlr-sts1)# t3
framing {c-bit | m23 |
auto-detect}
Specifies the framing mode, where:
• c-bit—Specifies C-bit parity framing.
• m23—Specifies M23 framing.
• auto-detect—Detects the framing type of the device at the
end of the line and switches to that framing type. If both
devices are set to auto-detect, c-bit framing is used. This is
the default.
Step 4
Router(config-ctrlr-sts1)# t3
clock source {internal | line}
Sets the clock source, where:
• internal—Specifies that the internal clock source is used.
• line—Specifies that the network clock source is used. This is
the default.
Note The clock source is set to internal if the opposite end of
the connection is set to line and the clock source is set to
line if the opposite end of the connection is set to internal.
Step 5
Router(config-ctrlr-sts1)# t3
loopback {local | network [line |
payload] | remote [line |
payload]}
Enables or disables loopback mode on a SONET controller,
where:
• local loopback—Loops data from the transmit path to the
receive path.
• network loopback—Loops data received on the external
port to the transmit path and back out the external port.
• remote loopback—Applicable only to c-bit framing.
The default is no loopback.

Cisco ASR 1000 Specifications

General

Brand	Cisco
Model	ASR 1000
Category	Network Router
Language	English