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1、?S1斷鏈告警處理指導1.故障現(xiàn)象描述告警管理中查看到基站上報“S1斷鏈告警(198094830)”告警碼,如下圖所示:2.故障分析排查思路根據(jù)TD-LTE的網(wǎng)絡(luò)接口協(xié)議,S1鏈路是建立在物理傳輸層、數(shù)據(jù)鏈路層、IP協(xié)議層、SCTP偶聯(lián)鏈路之上的傳輸協(xié)議層,如下圖所示:所以處理S1鏈路故障,需要從底層開始排查:1、首先排查站點是否存在傳輸告警,排除傳輸故障;2、其次基站IP地址配置是否正常;3、再次確認SCTP偶聯(lián)斷告警,排除SCTP偶聯(lián)告警;4、最后排查是否存在S1AP建立失?。▍f(xié)商失敗或基站無小區(qū)),與核心網(wǎng)核對小區(qū)
2、TAC值是否配置一致。1.故障排查步驟1、查看基站告警,是否存在傳輸類相關(guān)告警,例如“網(wǎng)元斷鏈告警”、“SCTP偶聯(lián)斷鏈”告警,若存在以上告警,需要先按照以上告警排查指導手冊,先解決以上告警。2、檢查ENODEB------MME或SGW路由IP地址是否配置正確;通過telnet命令登錄到CC板,使用BRS命令對MME及SGW地址進行PING包測試,詳細登錄方式如下,紅色字體均需要輸入:通過服務(wù)器遠程登錄:bash-3.2$telnet10.30.143.201前臺通過網(wǎng)線直連登錄地址:192.254.1.16正在嘗試.
3、..連接到10.30.143.201(192.254.1.16)(none)login:zte(用戶名)Password:zte(密碼)Processing/etc/profile...Done#/ushell->Pleaseinputpassword!->***(密碼zte)->Loginsuccess!!ushelltoolmenu:------------------------------------------------------------------------------'ps'or'PS'listp
4、rocessrunontheboard'prxxx'or'PRxxx'takeoverxxxprocessprintfinfo'nprxxx'or'NPRxxx'nottakeoverxxxprocessprintfinfo'dbxxx'or'DBxxx'debugxxxprocessprintfinfo'ndbxxx'or'NDBxxx'notdebugxxxprocessprintfinfo'padxxx'or'PADxxx'debugandtakeoverxxxprocessprintfinfo'npadxxx'o
5、r'NPADxxx'notdebugandtakeoverxxxprocessprintfinfo'pall'or'PALL'displaycurrentdebugandtakeoverinfo'ncheck'or'NCHECK'Donotcheckanotherushellexist'check'or'CHECK'Docheckanotherushellexist'Q'or'q'cancelallprocessdebugandprintfinfo'exit'or'EXIT'cancelushellxxxisproces
6、sidyouwanttodebugortakeoverprintfinfo------------------------------------------------------------------------------$$ps(查看前臺進程)PIDUSERVSZSTATCOMMAND1root1304Sinit2root0SW[softirq-high/0]3root0SW[softirq-timer/0]4root0SW[softirq-net-tx/]5root0SW[softirq-net-rx/]6r
7、oot0SW[softirq-block/0]7root0SW[softirq-tasklet]8root0SW[softirq-sched/0]9root0SW[softirq-hrtimer]10root0SW[softirq-rcu/0]11root0SW[watchdog/0]12root0DW[chkeventd/0]13root0SW<[events/0]14root0SW<[rt_events/0]15root0SW<[khelper]16root0SW<[kthread]17root0SW<[rt_kth
8、read]37root0SW<[kblockd/0]42root0SW<[khubd]83root0SW[pdflush]84root0SW[pdflush]85root0SW<[kswapd0]86root0SW<[aio/0]621root0SW[mtdblockd]678root1253mS/MGR.EXE68