
DETAILED STEPS
Purpose
Command or Action
Enters global configuration mode.
Router#
configure terminal
Step 1
Selects the interface to configure and enters interface
configuration mode.
Router(config)#
interface serial
slot/subslot/port
Step 2
Sets the IP address and subnet mask.
Router(config-if)# ip address address mask
Step 3
•
address
—
IP address.
•
mask
—
Subnet mask.
Configures the clock rate for the hardware to an acceptable bit
rate per second (bps).
Router(config-if)# clock rate bps
Step 4
What to Do Next
Each port should first be connected with the appropriate cable before attempting full configuration. Some
commands are enabled only based upon the cable type connected to the port.
Note
The bandwidth of each interface is 2 MB by default; setting the clock rate does not change the interface
bandwidth. We recommend that you configure the bandwidth value with the clock rate command at the
DCE and DTE side.
Note
A clock rate of 2016000 does not appear in the configuration because it is the default value.
Note
Verifying the Configuration
After configuring the new interface, use the
show
commands to display the status of the new interface or all
interfaces, and use the
ping
and
loopback
commands to check connectivity. This section includes the following
subsections:
Using show Commands
The table below shows the
show
commands you can use to verify the operation of the 4-Port Serial Interface
SPA. Sample displays of the output of selected
show
commands appear in the following section.
Cisco ASR 1000 Series Aggregation Services Routers SIP and SPA Software Configuration Guide, Cisco IOS
XE Everest 16.5
278
OL-14127-17
Configuring the 4-Port Serial Interface SPA
Verifying the Configuration