Cisco Cisco Packet Data Interworking Function (PDIF) Documentation Roadmaps
External Storage System Overview
▀ Overview
▄ Cisco ASR 5000 Series Product Overview
OL-22937-01
Local, Short-Term External Storage System
The Local, short-term storage system (L-ESS) is a storage server logically connected with the ASR 5000 and acts as an
integrated network system.
integrated network system.
The following are the requirements for the deployment of L-ESS:
High speed dedicated redundant connections to chassis to pull EDR/NBR/UDR files.
High-speed dedicated and redundant connection with billing system and/or R-ESS to transfer EDR/NBR/UDR
files.
Different management addresses than the management addresses of the chassis, billing system, and R-ESS.
Management interface with support of multiple VLANs.
Redundancy support with two or more geographically co-located or isolated chassis to pull CDRs/xDRs.
In general L-ESS provides the following functionalities:
Stores copy of records pulled from chassis.
Supports storage of up to 7 days worth of records.
Supports storage capacity of carrier-class redundant.
Provides a means of limiting the amount of bandwidth, in term of kbps, used for the file transfer between chassis
and L-ESS.
Provides a means of archiving/compression of the pulled EDR/NBR/UDR files for the purpose of extending the
storage capacity.
Provides EDR/UDR files to the billing system.
Remote, Long-Term External Storage System
The remote, long-term storage component (R-ESS) is responsible for the storage of EDR/NBR/UDR files pushed from
one or more L-ESS. The L-ESS pushes these files to R-ESS at pre-configured intervals using SFTP. For long term
planning R-ESS provides long-term storage of files up to 30 days. Records provided by R-ESS can be utilized for
network planning, subscriber usage profiling analysis or marketing strategies.
one or more L-ESS. The L-ESS pushes these files to R-ESS at pre-configured intervals using SFTP. For long term
planning R-ESS provides long-term storage of files up to 30 days. Records provided by R-ESS can be utilized for
network planning, subscriber usage profiling analysis or marketing strategies.
The following are the requirements for the deployment of R-ESS:
High speed dedicated redundant connections to L-ESS to receive pushed EDR/NBR/UDR files.
Different management addresses than the management addresses of the chassis and L-ESS.
In general R-ESS provides the following functionalities:
Stores copy of records pushed from L-ESS.
Supports up to 30 days worth of records.
Supports storage capacity of carrier-class redundant.
Provides a means of archiving/compression of the collected EDR/UDR files for the purpose of extending the
storage capacity.