)

```
81505c8 (az_upstream/202412) Merge branch '202411' of https://github.com/sonic-net/sonic-mgmt into 202412
30b7d73 (pub_upstream/202411) [202411 ] Updating the BGP, Reboot and LACP  convergence cases to latest Snappi Api Model instead of Snappi_convergence module [ PR 18044 ] (sonic-net#18391)
e146100 [action] [PR:18292] Fix Skip tests if no portchannels are found in prepare_test_port fixture (sonic-net#280)
d8b9193 [action] [PR:17985] [tests_mark_conditions.yaml]: Skip GNMI/ZMQ test for isolated topology (sonic-net#281)
ef951e6 [action] [PR:17943] Add default routes to t1-isolated-d128 (sonic-net#282)
2d3aec5 [action] [PR:18341] [route/test_route_perf] Support reading l3_alpm_template from config.bcm for TH5 platforms (sonic-net#284)
6390c7d [202412][PR: 18350] disable default pfcwd for all lossy DUT (sonic-net#271)
b621644 [Cherry-pick] modifying Ignore message for 'Failed to get port by bridge port ID' (sonic-net#263)
bc9a2d2 modifying Ignore message for 'Failed to get port by bridge port ID'
```

…-net#11929)

Include following new kernel commits:
- 815cb34 [patch]: Add accept_untracked_na kernel param (sonic-net#291)
- fbb76cc Remove kernel config SERIAL_8250_RUNTIME_UARTS (sonic-net#286)

Introduce following SWSS commits:
- eedf59d [intfmgr]: Enable `accept_untracked_na` kernel param (sonic-net#2439)
- bbd4eb7 [BFD]Clean up state_db BFD entries on swss restart (sonic-net#2434) (sonic-net#2435)
- aa7b546 [FDB] [202012] Fix fbdorch to properly handle syncd FDB FLUSH Notif (sonic-net#2401)
- 4190c13 Support for platforms based on Clounix Networks' device (sonic-net#2399)

Signed-off-by: Lawrence Lee <lawlee@microsoft.com>

Submodule src/sonic-platform-common 42119e1..5d7954e:
  > [ChassisBase] Make reboot cause constant strings human-readable (sonic-net#35)
  > Add .gitignore file (sonic-net#28)
  > [sonic_platform_base] Add sonic_sfp and sonic_eeprom to sonic_platform_base (sonic-net#27)
  > Enhance new platform API (sonic-net#19)
  > fix typo in platform API base class (sonic-net#25)

Submodule src/sonic-swss 9cf7b01..1e99c93:
  > Set timer only when interval changes. Not in each firing of the timer. (sonic-net#945)

Submodule src/sonic-utilities ec1e93f..24958f1:
  > [fast reboot] stop removing opennsl module before reboot (sonic-net#560)

Submodule src/sonic-swss-common b472f6e..d6140fa:
  > timerfd:read failure - Record in logs as error. (sonic-net#295)
  > do not abort when read timerfd return 0 and errno = 0 (sonic-net#291)
  > Add an assert to logger, which will log a message and abort. (sonic-net#286)

Signed-off-by: Ying Xie <ying.xie@microsoft.com>

…utomatically (sonic-net#23363)

#### Why I did it
src/sonic-host-services
```
* 5f79c8f - (HEAD -> 202505, origin/202505) Improve LC reboot cause for supervisor heartbeat loss (sonic-net#291) (16 hours ago) [mssonicbld]
```
#### How I did it
#### How to verify it
#### Description for the changelog

sonic-net#22921)

#### Why I did it
src/linkmgrd
```
* d5cb087 - (HEAD -> 202411, origin/202411) [active-active] Fix mux not toggle to active in default route flapping (sonic-net#291) (sonic-net#298) (3 days ago) [Longxiang Lyu]
* 549d51d - Fix pipeline to use bookwarm (sonic-net#300) (4 days ago) [mssonicbld]
* 555cec6 - [ci][build] deprecate ubuntu 20.04 agent pool (sonic-net#299) (4 days ago) [mssonicbld]
```
#### How I did it
#### How to verify it
#### Description for the changelog