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1. Multilink Ppp

Configuring Serial Interfaces on the Cisco ASR 9000 Series Router

RP/0/0RP0RSP0/CPU0:router(config-fr-vc)# exit

RP/0/0RP0RSP0/CPU0:router(config-subif)# exit

RP/0/0RP0RSP0/CPU0:router(config)# exit

RP/0/0RP0RSP0/CPU0:router# show interface serial 0/1/0/1

Wed Oct

Serial0/1/0/1 is up, line protocol is up

Interface state transitions: 7

Hardware is Serial network interface(s)

Internet address is Unknown

MTU 4474 bytes, BW 44210 Kbit

Encapsulation FRAME-RELAY, crc 16,

Scrambling is disabled, Invert data is disabled

LMI enq sent

LMI enq recvd 0, LMI stat sent

LMI DLCI 1023

Last clearing of "show interface" counters 02:22:09

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 PPP Encapsulation: Example

The following example shows how to create and configure a serial interface with PPP encapsulation:

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)# ipv4 address 172.18.189.38 255.255.255.224

RP/0/0RP0RSP0/CPU0:router(config-if)# encapsulation ppp

RP/0/0RP0RSP0/CPU0:router(config-if)# no shutdown

RP/0/0RP0RSP0/CPU0:router(config-if)# ppp authentication chap MIS-access

RP/0/0RP0RSP0/CPU0:router(config-if)# end

Uncommitted changes found, commit them? [yes]: yes

The following example shows how to configure serial interface 0/3/0/0/0:0 to allow two additional retries

after an initial authentication failure (for a total of three failed authentication attempts):

RP/0/0RP0RSP0/CPU0:router# configuration

RP/0/0RP0RSP0/CPU0:router(config)# interface serial 0/3/0/0/0:0

RP/0/0RP0RSP0/CPU0:router(config-if)# encapsulation ppp

RP/0/0RP0RSP0/CPU0:router(config-if)# ppp authentication chap

RP/0/0RP0RSP0/CPU0:router(config-if)# ppp max-bad-auth 3

RP/0/0RP0RSP0/CPU0:router(config-if)# end

Uncommitted changes found, commit them? [yes]: yes

IPHC Configuration: Examples

This section provides the following examples:

•

OL-26061-03

8 04:13:45.046 PST DST

reliability 255/255, txload 0/255, rxload 0/255

1110, LMI stat recvd 875, LMI upd recvd 0, DTE LMI up

LMI type is CISCO

853 packets input, 12153 bytes, 0 total input drops

0 drops for unrecognized upper-level protocol

Received 0 runts, 0 giants, 0 throttles, 0 parity

0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored, 0 abort

853 packets output, 11089 bytes, 0 total output drops

0 output errors, 0 underruns, 0 applique, 0 resets

0 output buffer failures, 0 output buffers swapped out

IPHC Profile Configuration: Example, page 546

IPHC on a Serial Interface Configuration: Examples, page 546

IPHC on Multilink Configuration: Example, page 546

Cisco ASR 9000 Aggregation Services Router Interfaces and Hardware Component Configuration Guide

Configuration Examples for Serial Interfaces

0, LMI upd sent

frame relay DTE

545