Cisco Cisco Packet Data Interworking Function (PDIF) Guía Para Resolver Problemas
MIP Timer Considerations
▀ Timer Values and Recommendations
▄ Cisco ASR 5000 Series Access Service Network Gateway Administration Guide
OL-22953-01
Timer Values and Recommendations
The following table shows values that would be populated in the Mobile IP call flow under a number of different
configured scenarios.
configured scenarios.
Table 43. Sample Mobile IP Call Flow Timer Scenarios
Scenario
1
2
3
4
5
6
7
Mobile Sub. MIP Lifetime
600
600
600
600
600
600
600
Source context default Sub-Absolute
300
300
300
300
300
300
300
Source Context Default Sub-Idle
300
300
300
300
300
300
300
FA-service Advertise Reg-Lifetime
400
400
400
400
400
400
400
Mobile Sub. Profile AAA Context Timeout idle 500
500
500
500
500
500
500
HA-Service MIP Lifetime
400
400
400
400
400
400
400
Agent Advertisement Reg-Lifetime
295
295
295
295
295
295
295
Mobile Sub. MIP RRQ requested lifetime
295
295
295
295
295
295
295
FA MIP RRP Lifetime
295
295
295
295
295
295
295
FA MIP RRP
success success success success success success Lifetime too long
Based on the table above, the recommended guidelines are:
If you are going to use timeout idle settings for subscribers, it is recommended that you configure the timeout
idle parameter in the source context default subscriber to a value that is less than or equal to the lowest timeout
idle for any subscriber.
idle for any subscriber.
If you are going to use timeout absolute settings for subscriber, it is recommended that you configure the timeout
absolute in the source context default subscriber to a value that is less than or equal to the lowest timeout idle
for any subscriber.
for any subscriber.
The FA-service advertise reg-lifetime parameter should be configured to a value less than the source context
default subscriber timeout idle parameter.
Failure to follow these recommendations could result in lifetime too long failures when the FA processes the subscriber
profile and finds an idle timeout that is less than the proposed MIP lifetime in the mobile RRQ.
profile and finds an idle timeout that is less than the proposed MIP lifetime in the mobile RRQ.