pon常见故障处理方法

常见故障1.无法正常发现ONU光路问题。超出ONU接受光功率的范围。ONU正常的收光范围为-8到-24DB之间，如果超出此范围的话就会导致设备无法上线；ONU与OLT之间的距离过远。一般测量时，ONU处的接收光功率，不得小于-24db。OLT一般支持最大的ONU距离为20KM，保险的范围是15KM。分光比：距离大于30KM，分光比不超过1：2。距离在25-30KM，分光比不能超过1：4，距离在20-25KM，分光比不能超过1：8。距离在20KM以内，随着距离的远近，分光比在1：32和1：64之内调整。OLT发光情况。OLT的发光功率在＋7～＋2范围内属于正常发光范围。如果在OLT的PON口上测量光功率过低或无光，需要更换光模块或直接更换PON口测试。ONU硬件故障。可以通过在OLT上查看ONU的收发光情况判断ONU是否正常，或更换ONU测试。长发光ONU影响到其他设备无法正常上线。处理方法可以将光箱侧的分光器摘下，测量从ONU到分光器有没有光上来。如果有光，表示有长发光设备，需找出后更换。如果以上情况都判断没有问题。则需要在OLT侧搭建简单网络环境测试，再逐一排查故障点。2.设备正常注册，宽带问题查看本地连接是否正常，不正常的话查看端口状态或更换网线测试。本地连接正常，拨号678问题。ONU上需要查看的问题：查看ONUVLAN情况，宽带VLAN是否创建了ONU长查看命令：ZXAN#shovlansAllcreatedvlannumber:21Detailsarefollowing:1,229,301-316,3120查看VLAN的透传情况ZXAN#shovlan301id:301name:VLAN301Member-limit:disableport(untagged):fei_0/2/1port(tagged):gei_0/5/1查看MAC地址学习情况，是否能通过业务VLAN学习到上层BAS和下层用户的MACZXAN#shomacPORTMACVIDTYPE5/1FC-C8-97-A1-B2-7C301dynamic2/1FC-C8-97-A7-C9-BF301dynamic如果无法通过业务VLAN学习到上层设备的MAC，则需要到OLT上查看设备配置情况。OLT上需要查看的问题外层VLAN是否已经在OLT上联口透传，qinq或serviceport流设备是否正确。TaiZhouWuLu_C300#shovlan401vlanid:401name:VLAN0401description:N/Amulticast-packet:flood-unknownport(untagged):port(tagged):gei_1/19/3gpon-onu_1/2/1:1-3:1ZXAN#shovlan-smart-qinqsmart-qinqitemnum(used):1Ingress-PortBegin-CvlanEnd-CvlanEther-TypeCosSvlanNewCosError--------------------------------------------------------------------------------epon-olt_1/2/13011000------304--OKJN_BeiLeFen_C300#shorunning-configinterfaceepon-onu_1/2/2:1Buildingconfiguration...!interfaceepon-onu_1/2/2:1adminenableslaupstreamfixed0fixedpkt64assured100000maximum100000maxburst95000priority0vport1sladownstreammaximum90000vport1encryptdirectiondownstreamenablevport1mac-binddisableems-autocfg-requestdisableswitchportmodehybridvport1service-port1vport1user-vlan301to500svlan305service-port2vport1user-vlan206vlan206OLT上MAC地址学习情况：TaiZhouWuLu_C300#shomacgpononugpon-onu_1/2/1:2Totalmacaddress:1MacaddressVlanidTypePortVcTime----------------------------------------------------------------------------f4ec.3872.e7c9401Dynamicgpon-onu_1/2/1:2vport100022.9354.8f20401Dynamicgei_1/19/3300如果以上都正常，需要查看OLT到ONU之间是否存在丢包情况，光路是否在正常范围之内，可以通过跟踪信令或到OLT侧直接模拟环境进行测试。3.语音问题有电无音查看语音协议和用户标识是否正确；ZXAN(ag)#h248s/查看语音协议是否正常，OK为正常，BREAK为断开如果语音协议断开在ONU上PING软交换地址查看与软交换之间是否是通的。ZXAN#Ping11.0.18.24PING11.0.18.24:56databytes64bytesfrom11.0.18.24:icmp_seq=0.time=20.ms64bytesfrom11.0.18.24:icmp_seq=1.time=10.ms64bytesfrom11.0.18.24:icmp_seq=2.time=10.ms64bytesfrom11.0.18.24:icmp_seq=3.time=10.ms64bytesfrom11.0.18.24:icmp_seq=4.time=10.ms----11.0.18.24PINGStatistics----5packetstransmitted,5packetsreceived,0%packetlossround-trip(ms)min/avg/max=10/12/20如果不能PING通，则查看语音地址配置情况及语音VLAN透传情况。ZXAN(ag)#get-voip-configmgid:1type:mediaipaddr:10.4.1.10submask:255.255.255.0nexthop:10.4.1.1port:10000-----------------------------------mgid:1type:controlipaddr:10.4.1.10submask:255.255.255.0nexthop:0.0.0.0port:2944ZXAN(ag)#shovlan3120id:3120name:VLAN3120Member-limit:disableport(untagged):port(tagged):gei_0/5/1如果能PING通再查看软交换地址配置是否正确。ZXAN(ag)#get-mgcmgcid1MGCID:1MGCTYPE:2MGCIP:11.0.18.24MGCPORT:2944DOMNAME:MGCINFO:USEIPMD5INFO:0-------------------------------------------1rowsareeffected如果语音协议是起来的，则需要查看语音用户标识是否正确配置，语音资源是否正常。ZXAN(ag)#get-slctermidslot3/查看槽位3的语音用户标识WanKeA7_1_4_F821(ag)#get-slctermidslot2slot2circuit:0termid:A0mgid:1--------------------------------------------------------------------------------circuit:1termid:A1mgid:1--------------------------------------------------------------------------------circuit:2termid:A2mgid:1--------------------------------------------------------------------------------circuit:3termid:A3mgid:1--------------------------------------------------------------------------------circuit:4termid:A4mgid:1--------------------------------------------------------------------------------circuit:5termid:A5mgid:1--------------------------------------------------------------------------------circuit:6termid:A6mgid:1--------------------------------------------------------------------------------circuit:7termid:A7mgid:1--------------------------------------------------------------------------------circuit:8termid:A8mgid:1--------------------------------------------------------------------------------circuit:9termid:A9mgid:1--------------------------------------------------------------------------------circuit:10termid:A10mgid:1--------------------------------------------------------------------------------circuit:11termid:A11mgid:1--------------------------------------------------------------------------------circuit:12termid:A12mgid:1--------------------------------------------------------------------------------circuit:13termid:A13mgid:1--------------------------------------------------------------------------------circuit:14termid:A14mgid:1--------------------------------------------------------------------------------circuit:15termid:A15mgid:1--------------------------------------------------------------------------------16rowsareeffected查看用户资源是否正常ZXAN(ag)#get-ipsstatus/查看语音小板的状态idlen