Display SONET Alarms and Errors
Action
To display SONET alarms and errors, use the following JUNOS command-line interface (CLI) operational mode command:
user@host>show interfaces so-fpc/pic/portextensive
Sample Output
user@host> show interfaces so-1/1/1 extensive
[...Output truncated...]
Active alarms : None
Active defects : None
SONET PHY: Seconds Count State
PLL Lock 0 0 OK
PHY Light 0 0 OK
SONET section:
BIP-B1 0 0
SEF 0 0 OK
LOS 0 0 OK
LOF 0 0 OK
ES-S 0
SES-S 0
SEFS-S 0
SONET line:
BIP-B2 0 0
REI-L 0 0
RDI-L 0 0 OK
AIS-L 0 0 OK
BERR-SF 0 0 OK
BERR-SD 0 0 OK
ES-L 0
SES-L 0
UAS-L 0
ES-LFE 0
SES-LFE 0
UAS-LFE 0
SONET path:
BIP-B3 0 0
REI-P 0 0
LOP-P 0 0 OK
AIS-P 0 0 OK
RDI-P 0 0 OK
UNEQ-P 0 0 OK
PLM-P 0 0 OK
ES-P 0
SES-P 0
UAS-P 0
ES-PFE 0
SES-PFE 0
UAS-PFE 0
[...Output truncated...]
What It Means
The sample output shows where you find SONET alarms and errors. SONET alarms and errors fall into three different areas of the output: section, line, and path.
Section, line, and path errors occur over different spans of the SONET network and between different pieces of equipment. Figure 11 shows an example of a SONET network with the section, line, and path areas delimited. Figure 11 also shows the different pieces of equipment that comprise a SONET network:
- A router, usually a path-terminating equipment (PTE)
- An add/drop multiplexer (ADM), usually a line-terminating equipment (LTE)
- A repeater, usually a section-terminating equipment (STE)
