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Serial Port Configuration
16.3 Disabling an Interface
Before you replace a compact serial cable, or attach your SmartNode to other serial equipment, use the
shutdown
command to disable the serial interfaces. This is to prevent anomalies and hardware faults.
When you shut down an interface, it has the state
CLOSED
in the
show port serial
command display.
Note:
Use the
no shutdown
command to enable the serial interface after the configuration procedure.
Procedure
To shut down a serial interface
Mode
Administrator execution
Command Purpose
Step 1
node
(cfg)#port serial
slot port
Selects the serial interface on slot and
port
Step 2
node
(prt-ser)[
slot
/
port
]#shutdown
Shuts the selected interface down
Step 3
node
(prt-ser)[
slot
/
port
]#show port serial
Displays the serial interface
configuration.
Example: Disabling an Interface
The example shows how to disable the built-in serial interface on slot 0 and port 0 of a SmartNode 2300
series device. Check that in the command output of
show port serial
State
is set to
CLOSED
.
SN(cfg)#
port serial 0 0
SN(prt-ser)[0/0]#
shutdown
SN(prt-ser)[0/0]#
show port serial
Serial Interface Configuration
------------------------------
Port : serial 0 0 0
State : CLOSED
Hardware Port : V.35
Port Type : DTE
CRC Type : CRC-16
Max Frame Length: 2048
Recv Threshold : 1
Encapsulation :
16.4 Enabling an Interface
After configuring the serial interface or connecting other serial devices to your SmartNode 2000, use the
no
shutdown
command to enable the serial interfaces again. When you enable an interface, it has the
state
OPENED
in the
show port serial
command displays.
Note:
Use the
shutdown
command to disable the serial interface for any software or hardware
configuration procedure.
Procedure
Software Configuration Guide, Revision 1.03
To enable a serial interface
Summary of Contents for SmartWare R2.00
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