CCNP - Interface : serial 설정

Cisco serial  인터페이스 설정

1. serial interface IP address 설정 

Engineering(config)#int se 2/0
Engineering(config-if)#ip address 10.1.200.1 255.255.255.0
Engineering(config-if)#clock rate 64000
Engineering(config-if)#no shutdown 

serial 인터페이스 모드로 들어가서 IP를  세팅해주면 된다.
만일,  Serial 인터페이스가 DCE 인 경우만 clock rate (64000)를 설정해 준다.

2. serial 인터페이스 확인

Engineering# show interfaces serial 2/0
Serial2/0 is up, line protocol is up (connected)
  Hardware is HD64570
  Internet address is 10.1.200.1/24
  MTU 1500 bytes, BW 64 Kbit, DLY 20000 usec,
     reliability 255/255, txload 1/255, rxload 1/255
  Encapsulation HDLC, loopback not set, keepalive set (10 sec)
  Last input never, output never, output hang never
  Last clearing of "show interface" counters never
  Input queue: 0/75/0 (size/max/drops); Total output drops: 0
  Queueing strategy: weighted fair
  Output queue: 0/1000/64/0 (size/max total/threshold/drops)
     Conversations  0/0/256 (active/max active/max total)
     Reserved Conversations 0/0 (allocated/max allocated)
     Available Bandwidth 48 kilobits/sec
  5 minute input rate 49 bits/sec, 0 packets/sec
  5 minute output rate 54 bits/sec, 0 packets/sec
     39 packets input, 2586 bytes, 0 no buffer
     Received 0 broadcasts, 0 runts, 0 giants, 0 throttles
     0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored, 0 abort
     37 packets output, 2160 bytes, 0 underruns
     0 output errors, 0 collisions, 1 interface resets
     0 output buffer failures, 0 output buffers swapped out
Engineering#   

3. serial 인터페이스 bandwidth 를 변경

Engineering(config)#int se 2/0Engineering(config-if)#bandwidth 128
%DUAL-5-NBRCHANGE: IP-EIGRP 1: Neighbor 10.1.200.2 (Serial2/0) is down: interface down%DUAL-5-NBRCHANGE: IP-EIGRP 1: Neighbor 10.1.200.2 (Serial2/0) is up: new adjacencEngineering(config-if)#

Engineering#show interfaces se 2/0Serial2/0 is up, line protocol is up (connected)  Hardware is HD64570  Internet address is 10.1.200.1/24  MTU 1500 bytes, BW 128 Kbit, DLY 20000 usec,     reliability 255/255, txload 1/255, rxload 1/255  Encapsulation HDLC, loopback not set, keepalive set (10 sec)  Last input never, output never, output hang never  Last clearing of "show interface" counters never