帧中继配置时出现链路无法ping通故障

发布时间:  2014-08-11 浏览次数:  77 下载次数:  0
问题描述
帧中继配置时出现AR1无法ping通AR2故障
告警信息
从AR1去ping AR2无法ping通
[Huawei]ping 11.1.1.2
  PING 11.1.1.2: 56  data bytes, press CTRL_C to break
    Request time out
    Request time out
    Request time out
    Request time out
    Request time out

  --- 11.1.1.2 ping statistics ---
    5 packet(s) transmitted
    0 packet(s) received
    100.00% packet loss
处理过程
1、检查两端帧中继配置和FR的PVC建立情况,发现已成功,表明无问题:
[Huawei]dis fr pvc-info
PVC statistics for interface Serial2/0/0 (DTE, physical UP)
    DLCI = 102, USAGE = UNUSED (00000000), Serial2/0/0
    create time = 2014/08/11 11:05:36, status = ACTIVE
    InARP = Enable, PVC-GROUP = NONE
    in packets = 0, in bytes = 0
    out packets = 12, out bytes = 360
2、检查线路无问题;
3、检查端口配置发现先配置FR然后配置的IP地址,这是问题的所在,

[Huawei-Serial2/0/0]link-protocol fr
[Huawei-Serial2/0/0]fr inarp
[Huawei-Serial2/0/0]ip add 11.1.1.1 24
先undo掉端口下所有配置:
[Huawei-Serial2/0/0]undo ip add
[Huawei-Serial2/0/0]link
[Huawei-Serial2/0/0]link-protocol ppp
然后再先配置IP地址而后进行FR配置:
[Huawei-Serial2/0/0]ip address 11.1.1.1 255.255.255.0
[Huawei-Serial2/0/0]lin
[Huawei-Serial2/0/0]link-protocol fr
检查端口配置和PVC建立情况:
[Huawei-Serial2/0/0]dis this
[V200R003C00]
#
interface Serial2/0/0
link-protocol fr
ip address 11.1.1.1 255.255.255.0
#
return
[Huawei]dis fr pvc-info
PVC statistics for interface Serial2/0/0 (DTE, physical UP)
    DLCI = 102, USAGE = UNUSED (00000000), Serial2/0/0
    create time = 2014/08/11 11:26:26, status = ACTIVE
    InARP = Enable, PVC-GROUP = NONE
    in packets = 1, in bytes = 128849018880
    out packets = 3, out bytes = 90
4、从AR1去ping AR2,发现成功:
[Huawei]ping 11.1.1.2
  PING 11.1.1.2: 56  data bytes, press CTRL_C to break
    Reply from 11.1.1.2: bytes=56 Sequence=1 ttl=255 time=1210 ms
    Reply from 11.1.1.2: bytes=56 Sequence=2 ttl=255 time=90 ms
    Reply from 11.1.1.2: bytes=56 Sequence=3 ttl=255 time=240 ms
    Reply from 11.1.1.2: bytes=56 Sequence=4 ttl=255 time=100 ms
    Reply from 11.1.1.2: bytes=56 Sequence=5 ttl=255 time=70 ms

  --- 11.1.1.2 ping statistics ---
    5 packet(s) transmitted
    5 packet(s) received
    0.00% packet loss
    round-trip min/avg/max = 70/342/1210 ms

根因
1、帧中继FR配置问题;
2、链路问题;
3、其余配置问题;
建议与总结
1、进行帧中继等配置时,需注意配置顺序:要先配置接口IP地址,然后再进行FR的配置

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