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XR 12000 SIP-601
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Cisco Systems XR 12000 SIP-401, XR 12000 SIP-501, XR 12000 SIP-601 User Manual

Configuring Serial Interfaces on Cisco IOS XR Software
This module describes the serial interfaces on routers supporting Cisco IOS XR software. Before you configure a serial interface, you must configure the clear channel T3/E3 controller or channelized T1/E1controller (DS0 channel) that is associated with that interface.
Feature History for Configuring Serial Controller Interfaces
Release Modification
Release 3.3.0 This feature was introduced on the Cisco XR 12000 Series Router.
Support was added on the Cisco XR 12000 Series Router for the following hardware:
• Cisco XR 12000 SIP-401
• Cisco XR 12000 SIP-501
• Cisco XR 12000 SIP-601
Support was added on the Cisco XR 12000 Series Router for the following SPAs:
• 2-Port and 4-Port Channelized T3 Serial SPA
• 2-Port and 4-Port T3/E3 Serial SPA
• Prerequisites for Configuring Serial Interfaces, page HC-116
• Information About Serial Interfaces, page HC-116
• How to Configure Serial Interfaces, page HC-121
• Additional References, page HC-124
Cisco IOS XR Interface and Hardware Component Configuration Guide
HC-115
Configuring Serial Interfaces on Cisco IOSXR Software

Prerequisites for Configuring Serial Interfaces

Prerequisites for Configuring Serial Interfaces
Before configuring serial interfaces, be sure that the following tasks and conditions are met:
• You must be in a user group associated with a task group that includes th e proper task IDs for serial
Interface commands. Task IDs for commands are listed in Cisco IOS XR Interface and Hardware Component Command Reference.
• Your hardware must support T3/E3 controllers and serial interfaces. The following hardware
supports T3/E3 controllers and serial inte rfaces in Cisco IOS XR Software Release 3.3:
–
2-Port and 4-Port Clear Channel T3/E3 SPAs
–
2-Port and 4-Port Channelized T3 SPAs
Note The 2-Port and 4-Port Channelized T3 SPAs support T1/E1 controllers and DS0 channels.
• You have already configured the clear channel T3/E3 controller or channelized
T3-to-T1/E1controller that is associated with the serial interface y ou want to conf igure, as described in the Configuring Clear Channel T3/E3 Controllers and Channelized T3 Controllers on
Cisco IOS X R Software module earlier in this document.

Information About Serial Interfaces

Serial interfaces are supported on the following Cisco XR 12000 Series Router shared port adapter (SPA) cards:
• 2-Port and 4-Port Clear Channel T3/E3 SPAs
• 2-Port and 4-Port Channelized T3 SPAs
Note The 2-Port and 4-Port Channelized T3 SPAs can run in clear channel mode, or they can be
channelized into 28 T1 or 21 E1 controllers.
T3/E3 serial interfaces are automatically created on clear channel T3/E3 controllers. On channelized T3-to-T1/E1 controllers, serial interfaces are automatically created when users conf igure indi vidual DS0 channel groups the T1/E1 controll ers.
To configure serial interfaces, you must understand the following concepts:
• High Level Over-View: Serial Interface Configuration on Clear-Channel SPAs, page HC-117
• High Level Over-View: Serial Interface Configuration on Channelized SPAs, page HC-118
• Default Settings for Serial Interface Configurations, page HC-119
• Serial Interface Naming Notation, page HC-119
• Cisco IOS XR PPP Encapsulation, page HC-120
• Cisco IOS XR HDLC Encapsulation, page HC-120
• Keepalive Timer, page HC-120
HC-116
Cisco IOS XR Interface and Hardware Component Configuration Guide
Configuring Serial Interfaces on Cisco IOS XR Software
Information About Serial Interfaces

High Level Over-View: Serial Interface Configuration on Clear-Channel SPAs

Table 10 provides a high-level overview of the tasks required to configure a T3 serial interface on a
2-Port and 4-Port Clear Channel T3/E3 SPA.
Table 10 Overview: Configuring a T3 Serial Interface on a Clear Channel SPA
Step Task Module Section
1. Use the hw-module subslot command to set serial mode for the SPA to be T 3, if necessary.
Note By default, the 2-Port and
“Configuring Clear Channel T3/E3 Controllers and Channelized T3 Controllers on Cisco IOS XR Software”
4-Port Clear Channel T3/E3 SPA is set to run in T3 mode.
2. Configure the T3 controller “Configuring Clear Channel T3/E3
Controllers and Channelized T3 Controllers on Cisco IOS XR Software”
3. Configure the serial interface that is associated with the T3 controller
“Configuring Serial Interfaces on Cisco IOS XR Software”
you configured in Step 2.
“Setting the Card Type for the Clear Channel SPAs”
“Setting the Card Type for the Clear Channel SPAs”
“Configuring the Serial Interfaces”
Table 11 provides a high-level overview of the tasks required to configure an E3 serial interface on a
2-Port and 4-Port Clear Channel T3/E3 SPA.
Table 11 Overview: Configuring an E3 Serial Interface on a Clear Channel SPA
Step Task Module Section
1. Use the hw-module subslot command to set serial mode for the SPA to be E 3.
2. Configure the E3 controller Configuring Clear Channel T3/E3
Configuring Clear Channel T3/E3 Controllers and Channelized T3 Controllers on Cisco IOS XR Software
Controllers and Channelized T3
Setting the Card Type for the Clear Channel SPAs
Setting the Card Type for the Clear Channel SPAs
Controllers on Cisco IOS XR Software
3. Configure the serial interface that is associated with the E3 controller
Configuring Serial Interfaces on Cisco IOS XR Software
Configuring the Serial Interfaces
you configured in Step 2.
Cisco IOS XR Interface and Hardware Component Configuration Guid e
HC-117
Configuring Serial Interfaces on Cisco IOS XR Software
Information About Serial Interfaces

High Level Over-View: Serial Interface Configuration on Channelized SPAs

Table 12 provides a high-level overview of the tasks required to configure a T1 serial interface on the
2-Port and 4-Port Channelized T3 SPA.
Table 12 Overview: Configuring a Serial Interface on a T1 DS0 Channel
Step Task Module Section
1. Configure the T3 controller
parameters and set the SP A mode to be T3.
28 T1 controllers are automat ically created.
2. Create and configure DS0 channel
groups on the T1 controllers you created in Step 1.
3. Configure the Serial interfaces that
are associated channel groups you created in Step 2.
“Configuring Clear Channel T3/E3 Controllers and Channelized T3 Controllers on Cisco IOS XR Software”
“Configuring Clear Channel T3/E3 Controllers and Channelized T3 Controllers on Cisco IOS XR Software”
“Configuring Serial Interfaces on Cisco IOS XR Software”
“Configuring a Channelized T3-to-T1 Controller”
“Configuring a Channelized T3-to-T1 Controller”
“Configuring the Serial Interfaces”
Table 13 provides a high-level overview of the tasks required to configure an E1 serial interface on the
2-Port and 4-Port Channelized T3 SPA.
Table 13 Overview: Configuring a Serial Interface on an E1 DS0 Channel
Step Task Module Section
1. Configure the T3 controller
parameters and set the SP A mode to be E3.
21 E1 controllers are automat ically
Configuring Clear Channel T3/E3 Controllers and Channelized T3 Controllers on Cisco IOS XR Software
Configuring a Channelized T3-to-T1 Controller
created.
2. Create and configure DS0 channel
groups on the E1 controllers you created in Step 1.
Configuring Clear Channel T3/E3 Controllers and Channelized T3 Controllers on Cisco IOS XR
Configuring a Channelized T3-to-E1 Controller
Software
3. Configure the Serial interfaces that
are associated channel groups you
Configuring Serial Interfaces on Cisco IOS XR Software
Configuring the Serial Interfaces
created in Step 2.
HC-118
Cisco IOS XR Interface and Hardware Component Configuration Guide
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