Atec Agilent-J2300E - Manual (Page 23)

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As well as being a core network technology, Packet over SONET/SDH (PoS),
also sometimes known as HDLC over SONET/SDH, is becoming an access
technology at 155 Mb/s, used as an alternative to ATM.
The Agilent Advisor supports analysis of the two main variants of PoS:
· IETF PPP in HDLC-like frames over SONET/SDH (both the current and
obsolete versions with version auto-detect and manual over-ride)
· Cisco HDLC over SONET/SDH
These are supported in the standard Agilent Advisor PPP and HDLC
applications which also support other interfaces. Full rate capture of frames
down to 7 bytes in length is provided, and full higher-layer decodes are
available, including those for 3G and Mobile-IP. These and other decodes are
also available over ATM and Ethernet, providing the Advisor with the most
extensive 3G analysis capability under one handle
Additionally, the Advisor allows the user to measure:
· Physical Layer Statistics (see figure 7)
-optical power / electrical pulse amplitude
-SONET/SDH alarms
· Link Layer
- Avg Util (%)
- Inst Util (%)
- Max Util (%)
- Min Util (%)
- Total Frames (count)
- Total Octets (count)
- Avg Thru (kbps)
Packet over SONET/SDH
- Inst Thru (kbps)
- Max Thru (kbps)
- Min Thru (kbps)
- Abort frames (count)
- Short Frames (count)
- FCS Errors (count)
Figure 7: Line Status Measurement.