Selecting Sonet Or Sdh Framing - Cisco 10000 Series Configuration Manual

Chapter 6 1-Port Channelized OC-12/STM-4 Line Card Configuration

Selecting SONET or SDH Framing

To configure the 1-Port Channelized OC-12/STM-4 line card for SONET, you must first set the framing
type to either SONET or SDH using the framing command.
If the 1-Port Channelized OC-12/STM-4 line card framing was previously configured for either SONET
or SDH, and you wish to change the framing, you must enter the no framing command to return the line
card to the default values. Then use the framing <framing type> command to set the new framing.
If you enter the no framing command, the line card configuration is erased, and all default line card
Caution
values are restored. Use the command with caution.
framing {sonet | sdh}
[no] framing
The default is SONET.
Use the no form of the command to remove framing and return the line card to the default values.
The following example shows you how to specify SONET framing for the 1-Port Channelized
OC-12/STM-4 line card in slot 2:
Router(config)# controller sonet 2/0/0
Router(config-controller)# framing sonet
Configuring the SONET Controller Loopback Mode
You can enable SONET controller loopbacks by using the loopback command.
loopback
[no] loopback
The default is no loopback.
Use the no form of the command to stop a loopback.
For more information on the loopback command, refer to the online Cisco 10000 Series ESR
Troubleshooting Guide.
The commands in this example run an internal loopback on the 1-Port Channelized OC-12/STM-4 line
card in slot 2:
Router(config)# controller sonet 2/0/0
Router(config-controller)# loopback internal
Creating a T3, VT, or AUG Controller
This section show you how to create and configure T3, VT, or AUG controllers, and contains the
following sections:
•
•
•
•
OL-8834-04
[ | ]
internal line
[ |
internal line
Designating an STS-1 Path as a T3 or VT under SONET Framing, page 6-16
Designating an STM-4 Port as an AU-3 or AU-4-TUG-3 Controller under SDH Framing, page 6-16
Configuring the SONET Controller Loopback Mode, page 6-15
VT Commands under SONET Framing, page 6-17
]
Cisco 10000 Series Router Line Card Configuaration Guide
Creating a T3, VT, or AUG Controller
6-15