编号：GZ-NY10001
主设备故障处理报告
河南开泰通信技术有限公司
第二篇：故障处理报告
AC部分AP异常掉线故障处理报告
诊断分析：
在AC上查看AP掉线原因：
AP Profile: zz_1423_004_21
-------------------------------------------------------------------------------
APID : 4
AP System Name : HAZZ-AP-1423-004-HSWA2100
Map Configuration : Not Configured
State : Run
Up Time(hh:mm:ss) : 09:25:21
Model : WA2100
Serial-ID : 210235A22WC119018274
IP Address : 172.30.67.130
H/W Version : Ver.E
S/W Version : V100R001B96D008SP01
Boot-Rom Version : 2.16
Description : 1F107门口
Connection Type : Master
Peer AC MAC Address : 3822-d6d5-b5a7
Priority Level : 7
Echo Interval(s) : 10
Statistics report Interval(s) : 50
Cir(Kbps) : -NA-
Cbs(Bytes) : -NA-
Jumboframe Threshold : Disable
Transmitted control packets : 11795
Received control packets : 11790
Transmitted data packets : 0
Received data packets : 0
Configuration Failure Count : 0
Last Failure Reason :
Last Reboot Reason : Normal
Latest IP Address : 172.30.67.130
Tunnel Down Reason : Neighbor Dead Timer Expire
Neighbor Dead Timer Expire：表示AC在三倍的握手时间内没有收到AP的Echo request报文，此时AC认为AP已经断开
登陆相应AP收集信息，发现：
*Oct 27 23:06:02:805 20## WA2100 LWPC/7/Pkt_Send:
Sent Discovery Request to 221.176.119.151 (Length: 156)
04 00 00 96 00 00 01 02 00 8e 00 00 00 00 3a 00
01 01 03 00 10 00 00 00 45 10 38 04 01 00 00 00
d8 01 01 00 00 32 00 4e 00 00 00 00 57 41 32 31
30 30 00 00 00 00 00 00 00 00 00 00 00 00 00 00
00 00 00 00 00 00 00 00 00 00 00 00 32 31 30 32
33 35 41 32 32 57 43 31 31 37 30 30 38 38 30 37
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
c4 ca d9 03 4b d0 04 00 02 01 07 05 00 14 32 31
30 32 33 35 41 32 32 57 43 31 31 37 30 30 38 38
30 37 68 00 07 00 00 63 a2 00 d2 01
%Oct 27 23:06:06:354 20## WA2100 LWPC/4/LWPC_UDISC_NO_AC_RESPOND:
No AC has responded to the Unicast Discovery request.
%Oct 27 23:06:12:712 20## WA2100 LWPC/4/LWPC_UDISC_NO_AC_RESPOND:
No AC has responded to the Unicast Discovery request.
%Oct 27 23:06:44:995 20## WA2100 LWPC/4/LWPC_UDISC_NO_AC_RESPOND:
No AC has responded to the Unicast Discovery request.
%Oct 27 23:06:48:908 20## WA2100 LWPC/4/LWPC_UDISC_NO_AC_RESPOND:
No AC has responded to the Unicast Discovery request
以上信息表示：AP已经发出单播请求发现报文，但并未收到AC的回应。而在AC侧并未收到AP的请求报文
诊断结果：
AP异常掉线原因为AP与AC之间的握手报文被中间链路所丢弃导致AC认为AP离线，握手报文丢弃的原因为NE40的上联链路带宽不足导致。