A.當(dāng)OMC-R與網(wǎng)絡(luò)通訊斷開(kāi)時(shí),網(wǎng)元的性能數(shù)據(jù)丟失
B.性能管理有三大要素:計(jì)數(shù)器、統(tǒng)計(jì)項(xiàng)、報(bào)表和報(bào)表模板
C.對(duì)指定統(tǒng)計(jì)對(duì)象的統(tǒng)計(jì)項(xiàng)設(shè)置多級(jí)告警門限和告警周期后,OMC-R對(duì)閾值進(jìn)行實(shí)時(shí)監(jiān)測(cè),在性能數(shù)據(jù)統(tǒng)計(jì)結(jié)果超過(guò)門限值時(shí)產(chǎn)生業(yè)務(wù)質(zhì)量告警,并實(shí)時(shí)顯示在告警監(jiān)控界面上;
D.用戶可以對(duì)任意時(shí)間段的性能數(shù)據(jù)進(jìn)行手動(dòng)統(tǒng)計(jì),可以預(yù)覽報(bào)表,也可以將報(bào)表保存到OMT本地