Cisco ASR 5000 series Product Overview page 792

▀ Features of the GSS
custom1 Format: This file format encodes CDRs according to the starent file format explained above.
Important:
generated without an extension; acknowledged and unacknowledged files are differentiated by their file names; the
system deletes all the files after reaching the maximum storage period (1-7 days) configured during GSS configuration.
custom2 Format: This customer-specific file format encodes CDRs according to the following conventions:
Field Description
0x00 - 0x03 Offset
0x04 - 0x07 Encoding
0x08 - 0x0b Number of CDRs
0x0c - 0x0f Number of read CDRs
0x10 - 0x13 File size
0x14 - 0x17 Abstract Syntax Notation One (ASN.1) format definition version
custom3 Format: This customer-specific file format encodes CDRs according to the following conventions:
Important:
generated with the .u file extension (indicating an unprocessed file to the billing system); - the GSS system deletes files
with .p extension as part of periodic clean-up.
▄ Cisco ASR 5000 Series Product Overview
EoF marker: \n
File name format:
GSN_
GSN_
The use of either starent or custom1 file formats, imposes a few specific reactions: - files are
Header: 24 byte header incorporating the following information:
Contents:
EoF marker: No EoF marker
File name format:
GSN_
Header: No header
Contents:
EoF marker: No EoF marker
File name format:
GSN_
The use of either custom2 or custom3 file formats imposes the following actions: - files are
...
GTPP Storage Server Overview
Value
Offset from EoH to first Unread CDR (4 Bytes)
Basic Encoding Rule (BER) i.e. 1 (4 Bytes)
Total number of CDRs in the file (4 Bytes)
Total number of read CDRs in the file (4 Bytes)
Size of CDR file in bytes (4 Bytes)
ASN.1 definition version information (4 Bytes)
OL-22938-02