What is the motivation for this PR?
The primary motivation for these modifications was to set up a virtual machine (VM) topology and ensure that the 'test_bgp_scalability.py' runs smoothly on both VM and hardware setups.

How did you do it?
These improvements and fixes were achieved by adjusting the indexing in the 'bgp_test_gap_helper.py' file, adding logic to disable the 'EnableDataPlaneEventsRateMonitor' for VM setups, and fixing attribute errors.

How did you verify/test it?
The 'test_bgp_scalability.py' was run on both hardware and VM setups. Both setups passed the test as expected.

Any platform specific information?
IxNetwork Application Version: 9.30.2212.22 on a virtual machine, used for both VM and HW setups.
IxChassis Application Version: 9.21 on a virtual machine and for the hardware setup.
Application Version: 9.30 on two Load Module virtual machines attached to a virtual IxChassis.
DUT SONiC-OS-202205.302215-e8e8c019c for VM setup.
DUT SONiC-OS-202205.262571-f2a687b33 for the hardware setup.

Documentation
Instructions on setting up a VM topology for testing have been added.
docs/testbed/README.testbed.Keysight.md
docs/testbed/README.testbed.Setup.md

What is the motivation for this PR?
The primary motivation for these modifications was to set up a virtual machine (VM) topology and ensure that the 'test_bgp_scalability.py' runs smoothly on both VM and hardware setups.

How did you do it?
These improvements and fixes were achieved by adjusting the indexing in the 'bgp_test_gap_helper.py' file, adding logic to disable the 'EnableDataPlaneEventsRateMonitor' for VM setups, and fixing attribute errors.

How did you verify/test it?
The 'test_bgp_scalability.py' was run on both hardware and VM setups. Both setups passed the test as expected.

Any platform specific information?
IxNetwork Application Version: 9.30.2212.22 on a virtual machine, used for both VM and HW setups.
IxChassis Application Version: 9.21 on a virtual machine and for the hardware setup.
Application Version: 9.30 on two Load Module virtual machines attached to a virtual IxChassis.
DUT SONiC-OS-202205.302215-e8e8c019c for VM setup.
DUT SONiC-OS-202205.262571-f2a687b33 for the hardware setup.

Documentation
Instructions on setting up a VM topology for testing have been added.
docs/testbed/README.testbed.Keysight.md
docs/testbed/README.testbed.Setup.md

sonic-mgmt: Fix namespace issues for qos tests on T2 single ASIC (sonic-net#15708)

Approach
What is the motivation for this PR?
We are seeing UnboundLocalError when running sonic-mgmt tests against a single-ASIC linecard:

UnboundLocalError: local variable 'dst_sys_port_id' referenced before assignment
Upon further investigation, this was determined to be happening because a previous attempt to fix this issue (PR sonic-net#13700) completely omitted the ASIC prefix, but the entries in SYSTEM_PORT in config_db do have an Asic0 prefix even on a single ASIC DUT.

How did you do it?
Resolve this by specifically adding the Asic0 prefix in the case of a single-ASIC T2 DUT, instead of leaving the prefix out.

How did you verify/test it?
Tested by manually running qos tests on a T2 single ASIC DUT with these changes.

co-authorized by: jianquanye@microsoft.com

6c6151b Fix unstable unit tests (state change handler wasn't invoked) (sonic-net#8)
2f7dc0a support code diff coverage (sonic-net#5)
83f0002 Force mux state switch to standby if triggered from Cli (sonic-net#6)

signed-off-by: Jing Zhang zhangjing@microsoft.com

Why I did it
Advance sonic-dhcp-relay submodule head on 202012 branch

How I did it
Added the following commits:
a4b15d8 jcaiMR Thu Dec 29 14:18:28 2022 +0800 fix relay-reply dhcpv6 packet counter issue (sonic-net#29)
677543f jcaiMR Sat Dec 17 00:24:32 2022 +0800 fix handleSwssNotification crash in dhcp6relay (sonic-net#28)
ed86546 jcaiMR Wed Dec 14 14:08:58 2022 +0800 Fix multiple vlan issue (sonic-net#27)
5ec1f5b Vivek Thu Dec 8 09:44:15 2022 -0800 Made the Error log informative (sonic-net#22)
063d41b jcaiMR Wed Nov 30 14:41:53 2022 +0800 disable cfg dynamic change (sonic-net#25)
d4a51f6 kellyyeh Tue Jan 31 18:09:08 2023 -0800 Add unittest infrastructure (sonic-net#5) (sonic-net#31)

How to verify it
Ran full dhcpv6 test suite on lab device

…D automatically (sonic-net#23272)

#### Why I did it
src/sonic-platform-daemons
```
* b4b76a9 - (HEAD -> 202505, origin/202505) [Smartswitch][pcied] Fix pcied handling for smartswitch during DPU detach sonic-net#5 (sonic-net#641) (9 hours ago) [mssonicbld]
```
#### How I did it
#### How to verify it
#### Description for the changelog

…et#21405)

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#### Why I did it

Adding the below fix from FRR FRRouting/frr#17297

This is to fix the following crash which is a statistical issue

```
[Thread debugging using libthread_db enabled]
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
Core was generated by `/usr/lib/frr/zebra -A 127.0.0.1 -s 90000000 -M dplane_fpm_nl -M snmp'.
Program terminated with signal SIGABRT, Aborted.
#0 0x00007fccd7351e2c in ?? () from /lib/x86_64-linux-gnu/libc.so.6
[Current thread is 1 (Thread 0x7fccd6faf7c0 (LWP 36))]
(gdb) bt
#0 0x00007fccd7351e2c in ?? () from /lib/x86_64-linux-gnu/libc.so.6
sonic-net#1 0x00007fccd7302fb2 in raise () from /lib/x86_64-linux-gnu/libc.so.6
sonic-net#2 0x00007fccd72ed472 in abort () from /lib/x86_64-linux-gnu/libc.so.6
sonic-net#3 0x00007fccd75bb3a9 in _zlog_assert_failed (xref=xref@entry=0x7fccd7652380 <_xref.16>, extra=extra@entry=0x0) at ../lib/zlog.c:678
sonic-net#4 0x00007fccd759b2fe in route_node_delete (node=<optimized out>) at ../lib/table.c:352
sonic-net#5 0x00007fccd759b445 in route_unlock_node (node=0x0) at ../lib/table.h:258
sonic-net#6 route_next (node=<optimized out>) at ../lib/table.c:436
sonic-net#7 route_next (node=node@entry=0x56029d89e560) at ../lib/table.c:410
sonic-net#8 0x000056029b6b6b7a in if_lookup_by_name_per_ns (ns=ns@entry=0x56029d873d90, ifname=ifname@entry=0x7fccc0029340 "PortChannel1020")
 at ../zebra/interface.c:312
sonic-net#9 0x000056029b6b8b36 in zebra_if_dplane_ifp_handling (ctx=0x7fccc0029310) at ../zebra/interface.c:1867
sonic-net#10 zebra_if_dplane_result (ctx=0x7fccc0029310) at ../zebra/interface.c:2221
sonic-net#11 0x000056029b7137a9 in rib_process_dplane_results (thread=<optimized out>) at ../zebra/zebra_rib.c:4810
sonic-net#12 0x00007fccd75a0e0d in thread_call (thread=thread@entry=0x7ffe8e553cc0) at ../lib/thread.c:1990
sonic-net#13 0x00007fccd7559368 in frr_run (master=0x56029d65a040) at ../lib/libfrr.c:1198
sonic-net#14 0x000056029b6ac317 in main (argc=9, argv=0x7ffe8e5540d8) at ../zebra/main.c:478
```

##### Work item tracking
- Microsoft ADO **(number only)**:

#### How I did it
Added patch.

#### How to verify it
Running BGP tests.

<!--
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#### Which release branch to backport (provide reason below if selected)

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- [ ] 201811
- [ ] 201911
- [ ] 202006
- [ ] 202012
- [ ] 202106
- [ ] 202111
- [ ] 202205
- [ ] 202211
- [ ] 202305

#### Tested branch (Please provide the tested image version)

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- [x] 20201231.100
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- [ ] <!-- image version 1 -->
- [ ] <!-- image version 2 -->

#### Description for the changelog
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 Ensure to add label/tag for the feature raised. example - PR#2174 under sonic-utilities repo. where, Generic Config and Update feature has been labelled as GCU.
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#### Link to config_db schema for YANG module changes
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#### A picture of a cute animal (not mandatory but encouraged)

advance dhcp relay for 202211

4bf1868 - (HEAD, origin/master, origin/HEAD, master) fix relay-reply dhcpv6 packet counter issue (add support for a7050 qx32 platform sonic-net#29) (2 weeks ago) [jcaiMR]
9b30690 - fix handleSwssNotification crash in dhcp6relay (Add libnl-nf-3-200 to docker-team sonic-net#28) (4 weeks ago) [jcaiMR]
047afb7 - Fix multiple vlan issue (Failure trying to run: chroot /sonic-buildimage/fsroot mount -t proc proc /proc sonic-net#27) (4 weeks ago) [jcaiMR]
ff6bec3 - Made the Error log informative (add python-tenjin as build dependency for p4-switch sonic-net#22) (5 weeks ago) [Vivek]
2fbe729 - disable cfg dynamic change (p4: fix build dependency for python-p4c-bm sonic-net#25) (6 weeks ago) [jcaiMR]
13d0805 - Use github code scanning instead of LGTM (Removed sx-libnl from Mellanox containers dependencies. sonic-net#26) (6 weeks ago) [Liu Shilong]
1e846f6 - Fix packet range check for relay-reply packets (update sonic-swss and p4-switch submodule to fix docker sonic p4 bug sonic-net#21) (7 weeks ago) [kellyyeh]
4d19e13 - Add unittest infrastructure (Cavium customization for docker containers sonic-net#5) (8 weeks ago) [kellyyeh]
7f4fdab - fix packet range check issue (Makefile: add build dependency for python-p4c-bm sonic-net#20) (9 weeks ago) [jcaiMR]
257ecdf - Add client packet UDP header length check (change port_config.ini directory for s6000 sonic-net#19) (2 months ago) [kellyyeh]

Fix three issues raised in code review:

Issue sonic-net#2 - ceos_effective_image undefined in ceos_ensure_reachable.yml:
Add a defensive set_fact at the top of ceos_ensure_reachable.yml that
sets ceos_effective_image to ceos_image as a fallback, guarded by
'when: ceos_effective_image is not defined'. In the normal flow the
variable is already set by the caller (ceos.yml in the eos role) so
this task is a no-op. It prevents an undefined variable error if the
file is ever invoked independently.

Issue sonic-net#3 - ceos_image_found stored as string instead of boolean:
The set_fact used a >- block scalar which causes Jinja2 to produce the
string 'True'/'False'. In Ansible the string 'False' is truthy, so
'when: not ceos_image_found' would never enter the prepare block when
the image is absent. Fixed by collapsing to a single quoted expression
and appending '| bool' to ensure Python boolean storage.

Issue sonic-net#5 - registry pull failure silently ignored:
Added a debug task immediately after the pull task that emits a WARNING
message when ceos_registry_pull_result is failed. Users can now see in
the Ansible output why the fallback to download-and-build was triggered.

Signed-off-by: Xin Wang <xiwang5@microsoft.com>
Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>