Cisco ASR 903 Router Chassis Software Configuration Guide, IOS XE Release 3.7
Configuring Optical Interface Modules
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Table of Contents

Configuring Optical Interface Modules

Limitations and Restrictions

Configuring AU-4 C-12 Mode

Configuring AU-3 C-11 Mode

Additional Resources

Troubleshooting

Configuring Optical Interface Modules

This chapter describes the most common configurations for optical interface modules on the Cisco ASR 903 Router and includes the following sections:

Limitations and Restrictions

The following limitations and restrictions apply when configuring optical interface modules on the Cisco ASR 903 Router:

  • SDH framing mode is supported; SONET is not supported.
  • HDLC encapsulation is supported; other encapsulation types are not supported.

Configuring AU-4 C-12 Mode

To configure an interface module to use AU-4 mapping, perform the following procedure.


NoteTo configure AU-3 C-11 mode, see To configure AU-3 C-11 mode, see Configuring AU-3 C-11 Mode.


SUMMARY STEPS

1. controller sonet slot/subslot/interface-id

2. framing sdh

3. aug mapping au-4

4. au-4 au4-number tug-3 tug-3 number

5. mode c-12

6. tug-2 tug-2 number e1 e1-line-number cem-group group-number unframed
or
tug-2 tug-2 number e1 e1-line-number cem-group group-number timeslots list-of-timeslots
or
tug-2 tug-2 number e1 e1-line-number atm
or
tug-2 tug-2 number e1 e1-line-number ima-group group-number
or
tug-2 tug-2 number e1 e1-line-number [[ channel-group channel-group-number ] [ timeslots list-of-timeslots

DETAILED STEPS

Command
Purpose

Step 1

Router(config)# controller sonet 0/1/0

Selects the controller to be configured.

Step 2

Router(config)# framing sdh

Specifies SDH as the framing mode.

Step 3

Router(config-controller)# aug mapping au-4

Specifies AUG mapping.

Step 4

Router(config-controller)# au-4 1 tug-3 2

Selects the AU-4 and TUG-3 to be configured. Valid values are:

  • au-4 —1–3
  • tug-3 —1–7

Step 5

Router(config-ctrlr-tug3)# mode c-12

Specifies the channelization mode for the TUG-3.

Step 6

SAToP CEM Group
Router(config-ctrlr-tug3)# tug-2 1 e1 1 cem-group 1 unframed
 
CESoPSN CEM Group
Router(config-ctrlr-tug3)# tug-2 1 e1 1 cem-group 1 timeslots 1-31
 
Clear-Channel ATM
Router(config-ctrlr-tug3)# tug-2 1 e1 1 atm
 
IMA Group
Router(config-ctrlr-tug3)# tug-2 1 e1 1 ima-group 1
 
Channel Group
Router(config-ctrlr-tug3)# tug-2 1 e1 1 [[ channel-group channel-group-number] [ timeslots list-of-timeslots]]

Creates a CEM group, IMA group, or channel-group for the AU-4. Valid E1 values are 1–3.

Configuring AU-3 C-11 Mode

To configure an interface with AU-3 mapping, perform the following procedure.


NoteTo configure AU-4 C-12 mode, see To configure AU-4 C-12 mode, see Configuring AU-4 C-12 Mode.


SUMMARY STEPS

1. controller sonet slot/subslot/interface-id

2. framing sdh

3. aug mapping au-3

4. au-3 au3-number

5. mode c-11

6. tug-2 tug-2 number t1 e1-line-number cem-group channel-number unframed
or
tug-2 tug-2 number t1 e1-line-number cem-group channel-number timeslots list-of-timeslots
or
tug-2 tug-2 number t1 e1-line-number atm
or
tug-2 tug-2 number t1 e1-line-number ima-group group-number
or
tug-2 tug-2 number t1 e1-line-number [[ channel-group channel-group-number ] [ timeslots list-of-timeslots ]]

DETAILED STEPS

Command
Purpose

Step 1

Router(config)# controller sonet 0/1/0

Selects the controller to be configured.

Step 2

Router(config)# framing sdh

Specifies SDH as the framing mode.

Step 3

Router(config-controller)# aug mapping au-3

Specifies AUG mapping.

Step 4

Router(config-controller)# au-3 3

Selects the AU-3 to be configured. Valid values are 1–3.

Step 5

Router(config-ctrlr-au3)# mode c-11

Specifies the channelization mode for the link.

Step 6

SAToP CEM Group

Router(config-ctrlr-au3)# tug-2 1 t1 2 cem-group 1 unframed

CESoPSN CEM Group

Router(config-ctrlr-au3)# tug-2 1 t1 2 cem-group 2015 timeslots 1-12

 

Clear-Channel ATM

Router(config-ctrlr-tug3)# tug-2 1 t1 1 atm

 

IMA Group

Router(config-ctrlr-tug3)# tug-2 1 t1 1 ima-group 1

 

Channel Group

Router(config-ctrlr-tug3)# tug-2 1 t1 1 [[ channel-group channel-group-number] [ timeslots list-of-timeslots]]

Creates a CEM group, ATM, IMA group, or channel-group for the AU-3. Valid T1 values are 1–4.

Valid values are:

  • tug-2 —1–7
  • t1 —1–4

Additional Resources

For more information about configuring CEM, see Chapter13, “Configuring Pseudowire”

For more information about configuring ATM, see

For additional information on configuring optical interfaces, see

Troubleshooting

You can use the following commands to verify your configuraiton:

  • show cem circuit —shows information about the circuit state, administrative state, the CEM ID of the circuit, and the interface on which it is configured. If xconnect is configured under the circuit, the command output also includes information about the attached circuit.
  • show cem circuit 0-504— Displays the detailed information about that particular circuit.
  • show cem circuit summary— Displays the number of circuits which are up or down per interface basis.
  • show class cem [ name | all | detail ]—Displays the parameters configured for CEM class.
  • show hw-module subslot transceiver— Displays information about the optical transceiver.
  • show mpls l2transport vc —Displays the state of local and peer access circuits
  • show running configuration —Shows detail on each CEM group
  • show xconnect all —Displays the state of the pseudowire and local and peer access circuits