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In this section:

 

Live Software Upgrade (LSWU) provides the ability to upgrade the 

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to the next software release while the 
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continues handling calls.

During an LSWU process, when the Standby SBC is in "Sync" state (which usually takes about 2 - 3 minutes), the new call data is queued on the Active SBC. Those calls are not marked as stable. Once the "Sync" is complete, the pending call data queue is moved from Active SBC to Standby SBC. Those calls are marked as stable. Therefore, check the callCountStatus when both Active and Standby SBCs complete the "Sync" state.

This page lists the average call rates and capacities for the following

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hardware platforms during a LSWU:

SBC 51x0 LSWU Performance Metrics

SBC 51x0 LSWU Performance Metrics

Source
Release

Call Rate

Call Capacity
(Concurrent Calls)

3.1.x

20

10,000

4.0.x

120

10,000

4.1.012010,000
4.1.112010,000
4.2.x12010,000
5.0.x12010,000
6.0..x12010,000

SBC 52x0 LSWU Performance Metrics

SBC 52x0 LSWU Performance Metrics

Source
Release

Call Rate

Call Capacity
(Concurrent Calls)

3.1.x

50

10,000

4.0.x

150

27,000

4.1.015027,000
4.1.137527,000
4.2.x37527,000
5.0.x20022,000
5.1.x20020,000
6.0.x20020,000

SBC 7000 LSWU Performance Metrics

SBC 7000 LSWU Performance Metrics

Source
Release

Call Rate

Call Capacity
(Concurrent Calls)

4.1.025025,000
4.1.163056,000
4.2.x63056,000
5.0.x63056,000
5.1.x63056,000
6.0.x63056,000

SBC SWe LSWU Performance Metrics

SBC SWe LSWU Performance Metrics

Source
Release

Call Rate

Call Capacity
(Concurrent Calls)

4.1.4R1181,200
4.2.1181,200
4.2.3181,200
5.0.x181,200
5.1.x181,200
6.0.x181,200

For Live Software Upgrade instructions, refer to Live Software Upgrade using CLI.

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