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Configuring Serial Interfaces on the Cisco ASR 9000 Series Router
RP/0/0RP0RSP0/CPU0:router(config-if)# end
Uncommitted changes found, commit them? [yes]: yes
The following example shows how to configure the interval between keepalive messages to be 10
seconds:
RP/0/0RP0RSP0/CPU0:router# configure
RP/0/0RP0RSP0/CPU0:router(config)# interface serial 0/3/0/0/0:0
RP/0/0RP0RSP0/CPU0:router(config-if)# keepalive 10
RP/0/0RP0RSP0/CPU0:router(config-if)# commit
The following example shows how to modify the optional serial interface parameters:
RP/0/0RP0RSP0/CPU0:router# configure
RP/0/0RP0RSP0/CPU0:router(config)# interface serial 0/3/0/0/0:0
RP/0/0RP0RSP0/CPU0:Router(config-if)# serial
RP/0/0RP0RSP0/CPU0:Router(config-if-serial)# crc 16
RP/0/0RP0RSP0/CPU0:Router(config-if-serial)# invert
RP/0/0RP0RSP0/CPU0:Router(config-if-serial)# scramble
RP/0/0RP0RSP0/CPU0:Router(config-if-serial)# transmit-delay 3
RP/0/0RP0RSP0/CPU0:Router(config-if-serial)# commit
The following is sample output from the show interfaces serial command:
RP/0/0RP0RSP0/CPU0:Router# show interfaces serial 0/0/3/0/5:23
Serial0/0/3/0/5:23 is down, line protocol is down
Hardware is Serial network interface(s)
Internet address is Unknown
MTU 1504 bytes, BW 64 Kbit
Encapsulation HDLC, crc 16,
Last clearing of "show interface" counters 18:11:15
5 minute input rate 0 bits/sec, 0 packets/sec
5 minute output rate 0 bits/sec, 0 packets/sec
Configuring a Serial Interface with Frame Relay Encapsulation: Example
The following example shows how to create a serial interface on a SPA with Frame Relay encapsulation
and a serial subinterface with a PVC on router 1:
RP/0/0RP0RSP0/CPU0:router# configure
RP/0/0RP0RSP0/CPU0:router(config)# interface serial 0/1/0/0
RP/0/0RP0RSP0/CPU0:router(config-if)# encapsulation frame-relay
RP/0/0RP0RSP0/CPU0:router(config-if)#frame-relay intf-type dce
RP/0/0RP0RSP0/CPU0:router(config-if)# no shutdown
RP/0/0RP0RSP0/CPU0:router(config-if)# end
Uncommitted changes found, commit them? [yes]: yes
RP/0/0RP0RSP0/CPU0:router# configure
RP/0/0RP0RSP0/CPU0:router(config)# interface serial 0/1/0/0.1 point-to-point
OL-26061-03
reliability 143/255, txload 1/255, rxload 1/255
2764 packets input, 2816 bytes, 3046 total input drops
0 drops for unrecognized upper-level protocol
Received 0 broadcast packets, 0 multicast packets
0 runts, 0 giants, 0 throttles, 0 parity
3046 input errors, 1 CRC, 0 frame, 0 overrun, 2764 ignored, 281 abort
2764 packets output, 60804 bytes, 0 total output drops
Output 0 broadcast packets, 0 multicast packets
0 output errors, 0 underruns, 0 applique, 0 resets
0 output buffer failures, 0 output buffers swapped out
0 carrier transitions
Cisco ASR 9000 Aggregation Services Router Interfaces and Hardware Component Configuration Guide
loopback not set, keepalive set (10 sec)
Configuration Examples for Serial Interfaces
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