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In this section...
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Overview
The
performance metrics for simultaneous sessions under a full-fledged Denial of Service (DoS) attack for various call scenarios are summarized in the "Benchmarking Results" section of the following pages. Note that these numbers apply to our recommended CPU and memory configurations, and the results may vary depending on the actual CPUs used. Exceeding these simultaneous sessions metrics in conjunction with a Denial of Service attack may result in poor call performance, including longer call setup times and/or poor voice quality. Sonus recommends maintaining call rates within the performance limits benchmarked below.Spacevars 0 product2
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Test data was obtained from a system using Direct I/O networking and a VMWare hypervisor. |
SBC SWe Memory Sizes Based on Capacity Requirements
The following tables define the amount of VM memory required based on the call capacity expected and the configuration requirements.
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The SBC SWe requires a minimum memory size of 10 GB. |
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Maximum Initial (challenged) REGISTER Rate with Background Load
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Large direct 10 vCPU with 24 GB memory:
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SIP Session and Registration Capacity Limits
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Large direct 10 vCPU with 24 GB memory:
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Increasing RAM on Active SBC SWe Systems
Use the following procedure to increase RAM size on active (live) systems to meet the desired SBC SWe session capacity.
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| 1 | Power down the designated Standby SBC. |
| 2 | Increase the RAM size of the VM system, and then power-on the Standby SBC. |
| 3 | Perform a manual switchover, and then power-down the previously Active SBC. Refer to the following pages for details: EMA: System - Admin CLI: Admin - CLI |
| 4 | Increase the RAM size of the VM system for the powered-down SBC, and then power it back up. |
| 5 | Manually switchover to revert the Active/Standby SBCs back to their original states prior to beginning this procedure. |
| 6 | Follow LSWU steps if you are upgrading to the next release. |
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Overview
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