Cisco Cisco Packet Data Gateway (PDG)
GTPP Changes in Release 16
GTPP Enhancements for 16.0 ▀
Release Change Reference, StarOS Release 16 ▄
171
gtpp group group_name
gtpp storage-server mode streaming parallel
default gtpp storage-server mode
end
Notes:
streaming
: In this mode, when the CGF becomes active, CDRs in HDD are streamed in a First-In-First-Out
order. Any new CDR generated during the streaming (till all CDRs are flushed out from HDD) will be written
to HDD and from there sent to CGF.
to HDD and from there sent to CGF.
parallel
: In this mode, when the CGF becomes active, CDRs in HDD are streamed at slower pace. Newly
generated CDRs are sent directly to CGF servers.
CSCuh30721 - Stranded CDR on ICSR automated solution
Applicable Products: GGSN, P-GW, SAEGW, SGSN, S-GW
Feature Changes
Automation in Transferring Stranded CDRs
In the event of chassis failure, the CDRs will remain on HDD until the chassis becomes active. This feature provides a
way to move the stranded CDRs from the new standby chassis to the new active chassis and stream them to the OCG.
way to move the stranded CDRs from the new standby chassis to the new active chassis and stream them to the OCG.
Previous Behavior: CDRs from current standby chassis were manually transferred to current active chassis using the
CLI command “
CLI command “
gtpp storage-server streaming start
”. Once the transfer is complete, a CLI command in the
Exec mode was configured to stream the CDRs to CGF.
New Behavior: The stranded CDRs in the standby ICSR node (moved from active to standby) are automatically
transferred to the newly active ICSR node. This automation process is achieved through the use of “
transferred to the newly active ICSR node. This automation process is achieved through the use of “
gtpp push-to-
active url
” CLI command in the Global Configuration mode.
Customer Impact: This feature could lead to duplicate CDRs. When streaming is in progress and ICSR switchover
happens, the current file being streamed, will not complete the streaming as interface with CGF went down. This file
will be transferred to new active chassis and streamed from beginning from new chassis.
happens, the current file being streamed, will not complete the streaming as interface with CGF went down. This file
will be transferred to new active chassis and streamed from beginning from new chassis.
The accounting contexts should be in same order in both the chassis. The directory names are created using vpn-id. If
the accounting contexts are in different order, vpn-id will be different and the sub-directories in HDD will be different
in both the chassis for same GTPP group.
the accounting contexts are in different order, vpn-id will be different and the sub-directories in HDD will be different
in both the chassis for same GTPP group.
Command Changes
gtpp push-to-active
This is a new CLI command used to enable the automatic transfer of stranded CDRs to active chassis.
configure
gtpp push-to-active url url via-context context_name