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[code sync] Merge code from sonic-net/sonic-buildimage:202305 to 202305 #475

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merged 2 commits into from
Dec 10, 2024

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* 7b88a427b - (head/202305) Prioritize configuration from config_db over constants.yml during BBR status initialization (#19590) (2024-12-09) [zitingguo-ms]<br>```

Gfrom2016 and others added 2 commits December 9, 2024 22:01
… status initialization (#19590)

Why I did it
There are two places which we can configure the BBR disabled/enabled, one is constants.yml, the other is by config_db. During run time, config_db win. But at the init stage, constants.yml win. This is a wrong logic, constants.yml only win when there is no such config in the config_db.

Work item tracking
Microsoft ADO (number only): 28302790
How I did it
Initialize BBR status from constants.yml only when config_db doesn't have BBR entry.

How to verify it
Build image and run the following:

# bbr status in constants.yml is set to disabled
# change the bbr status in config_db to enabled and reload config
admin@str2-7050cx3-acs-01:~$ redis-cli -n 4 hset "BGP_BBR|all" "status" "enabled"
(integer) 0
admin@str2-7050cx3-acs-01:~$ redis-cli -n 4 hget "BGP_BBR|all" "status"
"enabled"
admin@str2-7050cx3-acs-01:~$ vtysh -c 'show run' | grep 'allowas'
  neighbor PEER_V4 allowas-in 1
  neighbor PEER_V6 allowas-in 1
admin@str2-7050cx3-acs-01:~$ sudo config save -y
Running command: /usr/local/bin/sonic-cfggen -d --print-data > /etc/sonic/config_db.json
admin@str2-7050cx3-acs-01:~$ sudo config reload -y

# check bgpcfgd log, bbr default status is enabled
2024 Aug 14 05:42:47.653216 str2-7050cx3-acs-01 INFO bgp#bgpcfgd: BBRMgr::Initialized and enabled from config_db. Default state: 'enabled'
@mssonicbld mssonicbld merged commit a206101 into Azure:202305 Dec 10, 2024
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2 participants