Cisco ASR 9000 Series Configuration Manual page 2

Contents
Contents
•
•
•
•
•
Prerequisites for Configuring T3/E3 Controllers
You must be in a user group associated with a task group that includes the proper task IDs. The command
reference guides include the task IDs required for each command. If you suspect user group assignment
is preventing you from using a command, contact your AAA administrator for assistance.
Before configuring T3/E3 controllers, be sure that you have one of the following supported SPAs
installed in the router:
•
•
Note
•
•
•
•
•
Information About T3/E3 Controllers and Serial Interfaces
The 2-Port and 4-Port Clear Channel T3/E3 SPAs support clear channel services over serial lines only.
The 4-Port Channelized T3/DS0 SPA supports clear channel services and channelized serial lines. If a
controller is not channelized, then it is a clear channel controller, and the full bandwidth of its associated
serial line is dedicated to a single channel that carries serial services.
When a T3 controller is channelized, it is logically divided into smaller bandwidth T1 or E1 controllers,
depending on which mode of channelization you select. The sum of the bandwidth of the serial interfaces
on the T1 or E1 controllers cannot exceed the bandwidth of the T3 controller that contains those
channelized T1 or E1 controllers.
When you channelize a T3 controller, each individual T1 or E1 controller is automatically further
channelized into DS0 time slots. A single T1 controller carries 24 DS0 time slots, and a single E1
controller carries 31 DS0 time slots. Users can divide these DS0 time slots up into individual channel
groups. Each channel group can support a single serial interface.
Cisco ASR 9000 Aggregation Services Router Interface and Hardware Component Configuration Guide
446
Configuring Clear Channel T3/E3 and Channelized T3 and T1/E1 Controllers on the Cisco ASR 9000 Series Router
Prerequisites for Configuring T3/E3 Controllers, page 446
Information About T3/E3 Controllers and Serial Interfaces, page 446
How to Configure Clear Channel T3/E3 Controllers and Channelized T1/E1 Controllers, page 455
Configuration Examples, page 484
Additional References, page 488
Cisco 2-Port and 4-Port Clear Channel T3/E3 SPA
Cisco 4-Port Channelized T3/DS0 SPA
The 4-Port Channelized T3/DS0 SPA can run in clear channel mode, or it can be channelized
into 28 T1 or 21 E1 controllers.
Cisco 1-Port Channelized OC-3/STM-1 SPA
Cisco 2-Port Channelized OC-12c/DS0 SPA
Cisco 1-Port Channelized OC-48/STM-16 SPA
Cisco 8-Port Channelized T1/E1 SPA
Before you can configure a clear channel T3 controller on the channelized SONET SPAs, you must
configure the SPA for an STS stream channelized for T3. For more information, see the
"Configuring Channelized SONET/SDH on the Cisco ASR 9000 Series Router" module.
OL-32684-01