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[code sync] Merge code from sonic-net/sonic-utilities:202511 to 202603#317

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mssonicbld merged 2 commits intoAzure:202603from
mssonicbld:sonicbld/202603-merge
Apr 21, 2026
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[code sync] Merge code from sonic-net/sonic-utilities:202511 to 202603#317
mssonicbld merged 2 commits intoAzure:202603from
mssonicbld:sonicbld/202603-merge

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* df7ec227 - (origin/202511) Nokia-armhf config-reload with swss and sync restart (#4473) (2026-04-20) [mssonicbld]<br>```

mssonicbld and others added 2 commits April 20, 2026 14:13
#### What I did
1). Fix for issue reported by the: sonic-net/sonic-buildimage#24766
 All interfaces are down after "config reload" applied under high CPU loading (pressure).
2). Sometimes after "config reload" command the management interface (eth0) connected over ETH-USB device
is UP/RUNNING on a remote peer side, but stays UP/not-running on the local side.
Well-known negotiation problem of ETH-over-USB devices (ASIX).

#### How I did it
1). Guaranty "config reload" by a swss.service restart "inside" the command implementation.
 The restart is done ONLY for the device Nokia-7215 and does not impact other devices and platforms.
2). If the management interface is a USB device and is UP but not RUNNING (/sys/class/net/${if}/operstate is not "up")
 at the end of the "config reload" command - bring it down and up with delay to trigger re-negotiation.
NOTE: DO NOT specially save/restore {if} routes since they comes from config-reload and no problem ever seen with that

#### How to verify it
1). "intrefaces are down" on slow board armhf Nokia-7215:
 taskset 0x1 yes 1>/dev/null &
 taskset 0x2 yes 1>/dev/null &
 config reload -y
 wait 7 mins
 show interfaces status
2). ifconfig eth0 -- is UP but not RUNNING
 Run full PTF set a couple of times

#### Backporting
[X] 202511

Signed-off-by: Sonic Build Admin <sonicbld@microsoft.com>

#### Previous command output (if the output of a command-line utility has changed)

#### New command output (if the output of a command-line utility has changed)
@mssonicbld mssonicbld merged commit 9936d08 into Azure:202603 Apr 21, 2026
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