gtpa1m0eACF/SNA Network Generation

Considerations for Defining Records for Internet Protocol (IP) Structures

The following information describes some SNAKEY-related considerations for defining the records for the IP structures.

#IPRTE Records

Enough IP routing table fixed file records (#IPRTE) must be allocated during SIP to hold all the IP routing table entries defined by the MAXRTE parameter. The minimum number of records can be determined by the following formula, where IPRT means IP routing table:

     Number of IPRT entries × Length of IPRT entry defined in IPRTE
   ---------------------------------------------------------------------------
             4095 - Size of IPRT header area defined in IPRTE

Where:

 Number of IPRT entries 
is the value specified for the MAXRTE parameter.

 Length of IPRT entry 
is defined in data macro IPRTE.

 Size of IPRT header area 
is defined in data macro IPRT.