Improve LC reboot cause for supervisor heartbeat loss#271
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judyjoseph merged 1 commit intosonic-net:masterfrom Jul 15, 2025
Merged
Improve LC reboot cause for supervisor heartbeat loss#271judyjoseph merged 1 commit intosonic-net:masterfrom
judyjoseph merged 1 commit intosonic-net:masterfrom
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Target release 202511 |
When the supervisor reboots ungracefully (e.g., kernel panic), LCs lose connection and are subsequently rebooted. This change adds 'heartbeat loss' as a software reboot cause for LCs. It also modifies the reboot cause logic to prioritize this software heartbeat loss cause over any hardware triggers that occur during the supervisor-initiated LC reboot. This ensures accurate reporting of the LC's reboot reason. Signed-off-by: Mohan Yelugoti <ymd@arista.com>
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mlok-nokia
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Jul 2, 2025
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@arlakshm reminder on this, thx |
judyjoseph
approved these changes
Jul 14, 2025
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@ymd-arista can you add the test result of "show reboot-cause history" in LC -- to the desription of this PR
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@judyjoseph : Updated description to show output of both cases. |
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Cherry-pick PR to 202505: #291 |
liamkearney-msft
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When the supervisor reboots ungracefully (e.g., kernel panic), LCs lose connection and are subsequently rebooted. This change adds 'heartbeat loss' as a software reboot cause for LCs. It also modifies the reboot cause logic to prioritize this software heartbeat loss cause over any hardware triggers that occur during the supervisor-initiated LC reboot. This ensures accurate reporting of the LC's reboot reason. Signed-off-by: Mohan Yelugoti <ymd@arista.com> (Cherry-picked from master) Signed-off-by: Liam Kearney <liamkearney@microsoft.com>
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When the supervisor reboots ungracefully (e.g., kernel panic), LCs lose connection and are subsequently rebooted. This change adds 'heartbeat loss' as a software reboot cause for LCs.
It also modifies the reboot cause logic to prioritize this software heartbeat loss cause over any hardware triggers that occur during the supervisor-initiated LC reboot. This ensures accurate reporting of the LC's reboot reason.
With new changes, output is: