Header - Wavetek ANT-20 Operating Manual

Broadband Analyzer/Generator
The items in the list are arranged in alphabetical order of traffic type. The following traffic types
are available:
Disabled
CBR
VBR-RT
VBR-nRT
DBR
SBR
UBR
5.9.2

Header

The "Header" field is used to define the test cell header for permanent virtual connections
(PVC). Generally, the header values for the Tx and Rx sides are set separately.
The edit boxes and radio buttons have the following meanings:
Button/Box
Format
Tx
Rx
Range
1 A particular VCI/VPI combination can only be assigned once on the Tx or Rx side. This is checked before the test
traffic is enabled. The allowed ranges for the VPI value differ for UNI and NNI.
Table O-17
O-34
No test channel assigned; test channel is disabled
Constant bit rate traffic
Real-time variable bit rate traffic
Non real-time variable bit rate traffic
Deterministic bit rate traffic
Statistical bit rate traffic
Unspecified bit rate traffic
Meaning
Radio buttons for selecting the VPI/VCI format
Decimal Input and display of the numerical values for Tx and Rx as decimal numbers
Hex. Input and display of the numerical values for Tx and Rx as hexadecimal numbers
Tx side header values
UNI/NNI Display indicating the interface to which the parameters apply
GFC Generic Flow Control (for UNI only)
1
VPI Virtual Path Identifier
1
VCI Virtual Channel Identifier (Kennziffer des virtuellen Kanals)
CI Congestion Indicator
CLP Cell Loss Priority (High = 1, Low = 0)
Rx side header values
UNI/NNI Display indicating the interface to which the parameters apply
1
VPI Virtual Path Identifier
1
VCI Virtual Channel Identifier
Display of range of values for GFC, VPI, VCI
Edit boxes and radio buttons of
"Header" field
ANT-20/ANT-20E
Operation