
Cisco IOS SoftwareConfiguration for theCisco 12000 SeriesOne-Port Channelized OC-12/STM-4(DS1/E1) ISE Line
Configuring the Serial Interfaces
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Cisco IOS Release 12.0(27)S1
Step 7 Enter exit to exit configuration mode:
Router(config-if)# exit
Router#
Step 8 Write the new configuration to nonvolatile random access memory (NVRAM) by using the copy
running-config startup-config command:
Router# copy running-config startup-config
[OK]
Router#
Using clear Commands on Serial Interfaces
To reset the hardware logic for a serial interface, use the clear interface serial
slot/port.path:channel-group-number EXEC command, where:
• path depends on the interface configuration (SDH framing with AU-4 or AU-3 AUG mapping, or
SONET framing in ct3 or vt-15 mode; see Table 10).
• channel-group-number is 0 to 30 for an E1 line, or 0 to 23 for a T1 line.
The following example clears serial interface 3/0.1/1/1:1, which is configured in the context of SONET
framing in vt-15 mode. The number sequence .1/1/1/:1 corresponds to the
sts-1-number/vtg-number/t1-line-number:channel-group number sequence.
Router# clear interface serial 3/0.1/1/1:1
Router#
Note As long as the serial interface is available, you can enter this command immediately after
using the enable command to enter privileged EXEC mode.
To initialize the counters for a serial interface, use the clear counters serial
slot/port.path:channel-group-number EXEC command, where:
• path depends on the interface configuration (SDH framing with AU-4 or AU-3 AUG mapping, or
SONET framing in ct3 or vt-15 mode; see Table 10).
• channel-group-number is 0 to 30 for an E1 line, or 0 to 23 for a T1 line.
The following example clears the counters for serial interface 3/0.1/1/1:1, which is configured in the
context of SONET framing in vt-15 mode. The number sequence .1/1/1:1 corresponds to the
sts-1-number/vtg-number/t1-line-number:channel-group-number sequence.
Router# clear counters serial 3/0.1/1/1:1
Clear “show interface” counters on this interface [confirm]
Router#
Note As long as the serial interface is available, you can enter this command immediately after
using the enable command to enter privileged EXEC mode.
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