Cisco Cisco Packet Data Gateway (PDG)
ICSR Checkpointing
Micro-checkpoints ▀
ASR 5500 System Administration Guide, StarOS Release 18 ▄
397
SESS_UCHKPT_CMD_NAT_SIP_ALG_CALL_INFO
This micro-checkpoint is sent when a new SIP flow is created or deleted for a subscriber (while SIP data is being passed
via the subscriber).
via the subscriber).
Time based: No
Frequency: N/A
Event based: Yes
Events: Triggered when a new SIP flow is created or deleted.
Accounting: No
Delta/Cumulative: N/A
CMD-ID: 98
Related CLI command: None
SESS_UCHKPT_CMD_NAT_SIP_ALG_CONTACT_PH_INFO
This micro-checkpoint is sent when a received SIP packet is analyzed and pinholes are created in the NAT firewall.
Time based: No
Frequency: N/A
Event based: Yes
Events: Triggered when a SIP packet creates pinholes in the NAT firewall.
Accounting: No
Delta/Cumulative: N/A
CMD-ID: 97
Related CLI command: None
SESS_UCHKPT_CMD_UPDATE_DSK_FLOW_CHKPT_INFO
This micro-checkpoint is sent when a new NAT flow is created or deleted for a subscriber (while data is being passed
via the subscriber).
via the subscriber).
This checkpoint is sent from a timer but it is not timer based. The timer is used to pace (10 micro-checkpoints)
whenever the timer fires (granularity = 2 sec). This only occurs if there are new flows that need to be micro-
checkpointed. Otherwise, no micro-micro-checkpoints are sent.
whenever the timer fires (granularity = 2 sec). This only occurs if there are new flows that need to be micro-
checkpointed. Otherwise, no micro-micro-checkpoints are sent.
Time based: No
Frequency: See explanation above.
Event based: Yes
Events: Triggered when a new NAT flow is created or deleted.
Accounting: No
Delta/Cumulative: N/A