The SBC SWe capacity is improved by assigning specific vCPUs of SWe instance to perform standard functions. For optimum performance, the vCPUs of the processor are distributed for parallel processing of:
- Management
- Signaling
- Media (crypto, transcoding and upstream/transmit-leg processing)
- DoS (protection/downstream-leg processing)
For phase-I, this feature supports only standard profiles which allows you to have fixed call-mix and core distribution and accordingly their estimations.
The supported standard profiles are:
Supported Standard Profiles
| Profile Name | Description |
|---|---|
| default | By default, non-cloud instances comes up with default profile. This profile retains the SBC SWe behavior of earlier release (5.0.x and 5.1.x), where signaling and media vCPUs are overlapped. |
| standard_signaling_profile | This profile utilizes the vCPUs for signaling (direct media) calls and it is auto-configured on the Cloud based S-SBC instance. |
| standard_passthrough_profile | This profile utilizes the vCPUs for passthrough calls. |
| standard_transcoding_profile | This profile utilizes the vCPUs for transcoding calls. |
| standard_callmix_profile | This profile supports callmix which contain a combination of 90% pass-through and 10% transcoding. |
| standard_msbc_profile | The purpose of this profile is to utilize the vCPUs primarily for passthrough calls. This profile gets auto-configured on Cloud based M-SBC instance. |
Once the distribution of vCPUs is set, the SBC SWe overload behavior functions the same way as the hardware SBC (5000/7000 series).
Caution
This feature is applicable only when the vcpu is more than or equal to four.
Note
After the database is cleared, the active profile is retained.
Profiles
Standard Profiles
When any standard profiles is activated in CLI, the application invokes the core partition script to read a specific .csv file. The script fetches the number of vCPUs for different functions to generate the core partition file (/opt/sonus/conf/swe/capacityEstimates/.cpuCoreSwe.txt) with _start and _end values.
Note
- SBC SWe instances will get rebooted automatically to activate the profile
- An alarm is generated stating that a new traffic profile is activated.
The standard profiles are based on fixed cost ratio of Downstream:Upstream:Signaling (DS:US:SIG) derived from the benchmarking data. Each standard profile maintains separate CSV file(s), located at /opt/sonus/etc/traffic-profiles/swe/. Each entry in the .csv contains the following information in specific order:
- num_vcpu
- mgmt_cores
- dist_cores
- dos_cores
- sig_cores
- media_cores
- crypto_cores
- transcode_cores
- tx_cores
On the SBC SWe Cloud (D-SBC) appropriate profiles are auto-configured based on the personality as follows:
| Personality Type | Profile Name |
|---|---|
| I-SBC | default |
| S-SBC | standard_signaling_profile |
| M-SBC | standard_msbc_profile |
On SBC SWe Cloud (D-SBC), the auto-configured profiles prevent reboot during instantiation.
Configuration Table
| Table Name | Description |
|---|---|
| sweTrafficProfiles | Contains all the standard profiles and their fixed call-mix. |
| sweActiveProfile | Contains the name of active profile and time-stamp of activation. |
| sweCodecMixProfile | Contains the standard codec_mix profiles.
|
Operational Table
| Table Name | Description |
|---|---|
| sweProcessorCapacity | This table contains the real processor capacity indices relative to a 2690v2 processor with the recommended BIOS/ESXi setting. |
| sweCapacityEstimate | This table contains the capacity estimations for all the standard profiles. |
| sweVcpuAllocation | This table contains the vcpu distribution for all the standard profiles. |
Caution
The Configuration and Operational tables are read-only except sweActiveProfile in Phase-I.
Overview
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