Nokia MetroHopper User Manual
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Maintaining Nokia MetroHopperDN99611394 © Nokia Networks Oy 19 (42)Issue 2-0 enTo see the signal quality counters, click Transmission / FXC RRI → Statisticson the menu. This will open the Statistics dialog box, in which you can choosethe interface for which the statistics will be displayed.It is possible to reset all the signal quality statistics by selecting the correspondingReset radio button in the Statistics dialog box.3.3 Using loopbacksEach unit contains several loopback points, which you can set manually to test thenode. These loopbacks are accessed by clicking Transmission / FXC RRI →Interface loops on the menu.The loopback status can change without the user changing it, for example, if thetime-out has been reached. Because of this, the Loopback window has its ownprivate status bar, which shows the last time the status of the loopbacks waschecked, and how long till the next refresh. You can set the refresh value byselecting Manage → Service Interface on the menu and entering the requiredvalue on the Time-outs tab.Table 1. StatisticsID text Value DescriptionG.826 TT seconds Total Time as specified in G.826G.826 AT seconds Available Time as specified in G.826G.826 ES seconds Errored Seconds as specified in G.826G.826 SES seconds Severely Errored Seconds as specified in G.826 1)G.826 BBE counter Background Block Errors as specified in G.826G.826 EB counter Errored Blocks as specified in G.8261) G.826 gives two definitions for SES. In Nokia Q1, the definition of SES as “≥30%errored blocks in one-second period" is adopted. |
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