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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
• channel-group—Specifies the logical channel group assigned to the time slots within the T1 link.
For more information about identifying slots and subslots, see the “Identifying Slots and Subslots for the
SIP and SPAs” section on page 4-1.
Naming the Interface
Interface names are automatically generated, and the format will be dependent on the mode each
particular linecard is operating on. The name formats of the serial interface created are listed below.
Channelized T3 mode
If framing is SONET or SDH with au-3:
interface serial [slot/subslot/port][ds3|ds1]:[channel-group]
SONET Mode
• If framing is SONET and mode is vt-15:
interface serial [slot/subslot/port].[sts1/vtg/t1]:[channel-group]
• If framing is SONET and mode is CT3
interface serial [slot/subslot/port].[ds3/t1]:[channel-group]
• If framing is SONET and mode is T3:
interface serial [slot/subslot/port].[ds3]
SDH Mode
If the aug mapping is au-4, the au-4 value is always 1; if the aug mapping is au-3, then the only supported
mode is c-11 (carrying a T1).
• If SDH-AUG mapping is au-4 and if the tug-3 is mode t3/e3:
interface serial [slot/subslot/port].[au-4/tug-3/tug-2/e1]:[channel-group]
• If SDH-AUG mapping is au-3:
interface serial [slot/subslot/port/au-3/tug-2/t1]:[channel-group]
POS on the 1-Port Channelized OC-12/STM-4 SPA
If framing is SONET and n is from 1-12:
interface pos slot/subslot/port:nsts-1
Required Configuration Tasks
This section lists the required configuration steps to configure the 1-Port Channelized OC-3/STM-1
SPA. Some of the required configuration commands implement default values that might be appropriate
for your network.
This section includes the following topics:
• Configuring the Controller for SONET or SDH Mode, page 19-4
• Configuring SONET Mode, page 19-4
• Configuring SDH Mode, page 19-6
• Configuring Channelized DS3 Mode, page 19-8