Using Loopbacks - Nokia MetroHopper User Manual

Table 1.
To see the signal quality counters, click Transmission / FXC RRI → Statistics
on the menu. This will open the Statistics dialog box, in which you can choose
the interface for which the statistics will be displayed.
It is possible to reset all the signal quality statistics by selecting the corresponding
Reset radio button in the Statistics dialog box.
3.3

Using loopbacks

Each unit contains several loopback points, which you can set manually to test the
node. 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 the
time-out has been reached. Because of this, the Loopback window has its own
private status bar, which shows the last time the status of the loopbacks was
checked, and how long till the next refresh. You can set the refresh value by
selecting Manage → Service Interface on the menu and entering the required
value on the Time-outs tab.
DN99611394 © Nokia Networks Oy
Issue 2-0 en
Statistics
ID text Value
G.826 TT seconds
G.826 AT seconds
G.826 ES seconds
G.826 SES seconds
G.826 BBE counter
G.826 EB counter
1) G.826 gives two definitions for SES. In Nokia Q1, the definition of SES as "≥30%
errored blocks in one-second period" is adopted.
Description
Total Time as specified in G.826
Available Time as specified in G.826
Errored Seconds as specified in G.826
Severely Errored Seconds as specified in G.826
Background Block Errors as specified in G.826
Errored Blocks as specified in G.826
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