Cisco ASR 9000 Series - Page 21

Configuring Serial Interfaces on the Cisco ASR 9000 Series Router
How to Configure Serial Interfaces
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Cisco ASR 9000 Aggregation Services Router Interfaces and Hardware Component Configuration Guide
OL-26061-03
11. exit
12. exit
13. show interfaces serial [interface-path-id]
Command or Action Purpose
Step 1
configure
Example:
RP/0/0RP0RSP0/CPU0:router# configure
Enters global configuration mode.
Step 2
interface serial interface-path-id
Example:
RP/0/0RP0RSP0/CPU0:router(config)# interface
serial 0/1/0/0
Specifies the serial interface name and notation
rack/slot/module/port, and enters interface configuration
mode.
Step 3
encapsulation [hdlc | ppp | frame-relay [IETF]
Example:
RP/0/0RP0RSP0/CPU0:router(config-if)#
encapsulation hdlc
(Optional) Configures the interface encapsulation
parameters and details such as HDLC, PPP or Frame Relay.
Note The default encapsulation is hdlc.
Step 4
serial
Example:
RP/0/0RP0RSP0/CPU0:router(config-if)# serial
(Optional) Enters serial submode to configure the serial
parameters.
Step 5
crc length
Example:
RP/0/0RP0RSP0/CPU0:ios(config-if-serial)# crc
32
(Optional) Specifies the length of the cyclic redundancy
check (CRC) for the interface. Enter the 16 keyword to
specify 16-bit CRC mode, or enter the 32 keyword to
specify 32-bit CRC mode.
Note The default is CRC length is 16.
Step 6
invert
Example:
RP/0/0RP0RSP0/CPU0:ios(config-if-serial)#
inverts
(Optional) Inverts the data stream.
Step 7
scramble
Example:
RP/0/0RP0RSP0/CPU0:ios(config-if-serial)#
scramble
(Optional) Enables payload scrambling on the interface.
Note Payload scrambling is disabled on the interface.
Step 8
transmit-delay hdlc-flags
Example:
RP/0/0RP0RSP0/CPU0:ios(config-if-serial)#
transmit-delay 10
(Optional) Specifies a transmit delay on the interface.
Values can be from 0 to 128.
Note Transmit delay is disabled by default (the transmit
delay is set to 0).