User Manual

ADCP-75-192 • Issue D • October 2005 • Section 3: Network and System Installation and Setup
Page 3-10
 2005, ADC Telecommunications, Inc.
• The Path Flag is a one-character string, “M”, "P" or "D" that indicates the path on
which the path trace was transmitted (“M”=Main Forward, “P”=Primary Reverse,
“D”=Diversity Reverse). The delimiter used to separate the primary sub-strings of the
pathtrace string is a single character, currently a comma (",").
An example of a complete pathtrace string is as follows:
wspname:bts4:alpha:us1900A,172.20.1.1,P
6.3.1 Pathtrace Creation
In the Assigning Tenants and BTS Connection MIB sections above, the components of the
Tenant ID portion of the pathtrace string were described. When these four pieces of
information are configured, they are combined into the Tenant ID string by a process known as
the Tenant Scanner, which spawns a new tenant process to manage the tenant identified by this
Tenant ID. Upon creation, the Tenant ID string is pushed down to the Hub RF Connection
MIB in the node/CPU that is controlling a tenant's RF equipment.
The hardware control processes (HCP’s) corresponding to the BIM, HDC(s), and FSC that
belong to a given tenant each create the pathtrace string that will be transmitted throughout the
system for this tenant. They start with the Tenant ID of the Hub RF Connection MIB and
append a delimiting character and the IP address of the CPU that those HCP’s are running on.
All three HCP’s report this pathtrace string in their MIB’s for use by tenant processing and
other higher-level processes, as described in Chapter 6. For a graphical depiction of how
pathtrace flows through the Digivance CXD System, see Figure 3-2.
Figure 3-2. Tracing Pathtrace, Two Tenants