add incident 025: ans steer clients into 5 GHz band
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91918091ec
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090b8b4709
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@ -4,3 +4,4 @@ interpreter_python=/usr/bin/python3
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gathering=smart
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gathering=smart
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fact_caching=jsonfile
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fact_caching=jsonfile
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fact_caching_connection=ansible-facts.json
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fact_caching_connection=ansible-facts.json
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callbacks_enabled = ansible.posix.profile_tasks
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@ -1118,3 +1118,34 @@ all updates where doing using the new "idempotent" `playbook_sysupgrade` (since
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* 2022.10.24 01:44 - 01:46: `gw-core01`
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* 2022.10.24 01:44 - 01:46: `gw-core01`
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=> downtime of the accesspoints in the specified timeframe
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=> downtime of the accesspoints in the specified timeframe
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=> downtime of `gw-core01` in the specified timeframe
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=> downtime of `gw-core01` in the specified timeframe
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025 2022.11.19 04:00 (ANS) | (maintenance) (try to) steer clients into 5 GHz band
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---------------------------------------------------------------------------------
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---
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_this log entry was added way after doing the actual work.
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Please read it with a grain of salt_
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---
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**problem**:
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* (if i remember correctly) way more clients in the 2,4 GhZ band than in the 5 GHz band (3/4 to 1/4)
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**solution**:
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* halfe the transmit power in the 2,4 GHz band
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* increased transmit power in the 5 GHz band by 1 dBm
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* implemented by `5017cb5`
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**impact**:
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This restarted wifi on all APs at the same time.
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Downtime for all clients for a few seconds at 04:00 in the morning.
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**validation**:
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One day afterwards it seemed like there where more clients in the 5 GHz band (50/50), but the datarates dropped for most of them.
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**critisism**:
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* placement, transmit power and supported bands of the clients impact 5 GHz utilization
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* unsure what actually is the problem
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* also did not correctly validate for a few days
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