ZyXEL Communications SBG5500-A, User Manual

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Chapter 5 WAN/Internet
SBG5500 Series User’s Guide
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5.2.2 The SFP Status Screen
Use this screen to view details about the SBG’s SFP connection and DDMI. Digital Diagnostics Monitoring
Interface (DDMI) SFP enables a real time link to be established between the SBG and the SFP
transceiver. View operating parameters within the fiber link. Click
Configuration > WAN / Internet > WAN
Status and click on the SFP Status tab.
Figure 47 Configuration > WAN / Internet > WAN Status > SFP Status
FEC This is the number of Far End Corrected blocks.
CRC This is the number of Cyclic Redundancy Checks.
ES This is the number of Errored Seconds meaning the number of seconds containing at
least one errored block or at least one defect.
SES This is the number of Severely Errored Seconds meaning the number of seconds
containing 30% or more errored blocks or at least one defect. This is a subset of ES.
UAS This is the number of UnAvailable Seconds.
LOS This is the number of Loss Of Signal seconds.
LOF This is the number of Loss Of Frame seconds.
LOM This is the number of Loss of Margin seconds.
Retr This is the number of DSL retraining count in BRCM DSL driver.
HostInitRetr This is the number of the retraining counts the host initiated.
FailedRetr This is the number of failed retraining counts
Table 7 Configuration > WAN / Internet > WAN Status > xDSL Statistics
LABEL DESCRIPTION