для Cisco Cisco Packet Data Gateway (PDG)
Interchassis Session Recovery
Updating the Operating System ▀
ASR 5000 System Administration Guide, StarOS Release 16 ▄
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Configuring Subscriber State Management Audit Process
This audit ensures that two ICSR peers are in synch and identifies any discrepancies prior to any scheduled or
unscheduled switchover events.
unscheduled switchover events.
Step 1
Enter the SRP Context mode and then enter the service-redundancy-protocol command.
Step 2
Enter the audit daily-start-time command. Specify the daily start time as an hour and minute. For example, a start time
of 06 00 indicates that the audit will begin at 6:00 AM.
of 06 00 indicates that the audit will begin at 6:00 AM.
Step 3
Enter the audit periodicity command. Specify the interval in minutes for generating SRP audit statistics as an integer
from 60 through 1440. For example, a periodicity of 90 indicates that SRP audit statistics will be generated every 90
minutes beginning at the specified start time. Default = 60.
from 60 through 1440. For example, a periodicity of 90 indicates that SRP audit statistics will be generated every 90
minutes beginning at the specified start time. Default = 60.
A sample configuration sequence appears below.
config
context ctx_name
service-redundancy-protocol
audit daily-start-time 06 00
audit periodicity 90
end
Updating the Operating System
Updating the operating system (StarOS™) on ICSR chassis requires performing an Off-line update of each chassis
while it is standby mode. Traffic disruption is minimal since an active chassis will be handling call sessions while the
standby chassis is being updated.
while it is standby mode. Traffic disruption is minimal since an active chassis will be handling call sessions while the
standby chassis is being updated.
The general upgrade sequence is as follows:
Download the StarOS software image and copy/transfer it to both chassis.
Save the currently running configurations on both chassis.
Update the standby backup chassis first.
Initiate an SRP switchover from the active primary chassis to make the standby backup chassis active.
Update the standby primary chassis.
Initiate an SRP switchover from the active backup chassis to make the standby primary chassis active.
The four-part flowchart below shows a more complete view of all the procedures required to complete the StarOS
upgrade process.
upgrade process.