Cabletron Systems 2.2 Manual De Usuario
SONET Port Configuration
2-79
Bridging
Figure 2-25. SONET/SDH ConÞguration Window
To set the operational mode of the SONET port via the SONET/SDH
ConÞguration window:
ConÞguration window:
1.
Click on the option button adjacent to the appropriate selection, SONET or
SDH, to choose the data transmission standard to be used by the interface.
SDH, to choose the data transmission standard to be used by the interface.
2.
Click on Apply to set your change at the interface, or Cancel to exit the
SONET/SDH Configuration window without applying any changes.
SONET/SDH Configuration window without applying any changes.
SONET/SDH Statistics
SONET/SDH statistics are available for each FE100-Sx, APIM-2x, or other SONET
port interface modules installed in your device. The same statistics apply whether
you have conÞgured the interface to operate according to SONET or SDH
transmission standards.
port interface modules installed in your device. The same statistics apply whether
you have conÞgured the interface to operate according to SONET or SDH
transmission standards.
The FE100-Sx and the APIM-2x port interface modules are SONET
path-terminating equipment (PTE). They act as an endpoint of an end-to-end
connection between themselves and another similar port interface module. As
endpoints, they are capable of generating and receiving the Path Overhead
information contained within the SPE (Synchronous Payload Envelope) of the
base-level SONET or SDH signals. Simply put, overhead is the extra bits in the
digital stream that relay information besides trafÞc signals.
path-terminating equipment (PTE). They act as an endpoint of an end-to-end
connection between themselves and another similar port interface module. As
endpoints, they are capable of generating and receiving the Path Overhead
information contained within the SPE (Synchronous Payload Envelope) of the
base-level SONET or SDH signals. Simply put, overhead is the extra bits in the
digital stream that relay information besides trafÞc signals.
The Path Overhead provides for end-to-end performance monitoring of the link,
the signal label (the content of the SPE, including status of mapped payloads), the
pathÕs current status, and path trace capabilities.
the signal label (the content of the SPE, including status of mapped payloads), the
pathÕs current status, and path trace capabilities.
The SONET/SDH Statistics window enables you to view some of the error
information contained within the Path Overhead that your FE100-Sx or APIM-2x
is receiving from the remote endpoint.
information contained within the Path Overhead that your FE100-Sx or APIM-2x
is receiving from the remote endpoint.
The window will inform you whether there have been speciÞc defects
experienced on the SONET link, and if the network has experienced any
signiÞcant unavailability time as a result.
experienced on the SONET link, and if the network has experienced any
signiÞcant unavailability time as a result.