added testplan for syslog protocol, filter, trap severity level

[SvyatDemn]

Description of PR

• Adding a new test plan and test for syslog protocol, filter, trap severity level

Type of change

• Bug fix
• Testbed and Framework(new/improvement)
• Test case(new/improvement)

Back port request

• 201911
• 202012
• 202205
• 202305
• 202311

Approach

What is the motivation for this PR?

Adding a new test plan document and tests.

How did you do it?

Created an MD file with the test plan information.

How did you verify/test it?

N/A

Any platform specific information?

N/A

Supported testbed topology if it's a new test case?

N/A

Documentation

N/A

[linux-foundation-easycla]

The committers listed above are authorized under a signed CLA.

• ✅ login: SvyatDemn / name: Svyatoslav Demnyak (f44a2f3, 27ed83c, 01da29b, c5031b1)

[yxieca]

@SvyatDemn please sign the EasyCLA.

[SvyatDemn]

@SvyatDemn please sign the EasyCLA.

Hi, did it many times, doesn't work for me, created a ticket for that
https://jira.linuxfoundation.org/plugins/servlet/desk/portal/4/SUPPORT-25419

[SvyatDemn]

@SvyatDemn please sign the EasyCLA.

Done with Easy CLA, please review

[mssonicbld]

The pre-commit check detected issues in the files touched by this pull request.
The pre-commit check is a mandatory check, please fix detected issues.

Detailed pre-commit check results:
trim trailing whitespace.................................................Passed
fix end of files.........................................................Passed
check yaml...........................................(no files to check)Skipped
check for added large files..............................................Passed
check python ast.........................................................Passed
flake8...................................................................Failed
- hook id: flake8
- exit code: 1

tests/syslog/test_syslog_source_ip.py:7:1: F401 'time' imported but unused
tests/syslog/test_syslog_source_ip.py:657:33: E127 continuation line over-indented for visual indent
tests/syslog/test_syslog_source_ip.py:675:33: E127 continuation line over-indented for visual indent
tests/syslog/test_syslog_source_ip.py:693:33: E127 continuation line over-indented for visual indent
tests/syslog/test_syslog_source_ip.py:696:34: E127 continuation line over-indented for visual indent

flake8...............................................(no files to check)Skipped
check conditional mark sort..........................(no files to check)Skipped

To run the pre-commit checks locally, you can follow below steps:

1. Ensure that default python is python3. In sonic-mgmt docker container, default python is python2. You can run
   the check by activating the python3 virtual environment in sonic-mgmt docker container or outside of sonic-mgmt
   docker container.
2. Ensure that the pre-commit package is installed:

sudo pip install pre-commit

3. Go to repository root folder
4. Install the pre-commit hooks:

pre-commit install

5. Use pre-commit to check staged file:

pre-commit

6. Alternatively, you can check committed files using:

pre-commit run --from-ref <commit_id> --to-ref <commit_id>

[mssonicbld]

The pre-commit check detected issues in the files touched by this pull request.
The pre-commit check is a mandatory check, please fix detected issues.

Detailed pre-commit check results:
trim trailing whitespace.................................................Passed
fix end of files.........................................................Passed
check yaml...........................................(no files to check)Skipped
check for added large files..............................................Passed
check python ast.........................................................Passed
flake8...................................................................Failed
- hook id: flake8
- exit code: 1

tests/syslog/test_syslog_source_ip.py:657:17: E122 continuation line missing indentation or outdented
tests/syslog/test_syslog_source_ip.py:676:17: E122 continuation line missing indentation or outdented
tests/syslog/test_syslog_source_ip.py:697:34: E127 continuation line over-indented for visual indent

flake8...............................................(no files to check)Skipped
check conditional mark sort..........................(no files to check)Skipped

To run the pre-commit checks locally, you can follow below steps:

1. Ensure that default python is python3. In sonic-mgmt docker container, default python is python2. You can run
   the check by activating the python3 virtual environment in sonic-mgmt docker container or outside of sonic-mgmt
   docker container.
2. Ensure that the pre-commit package is installed:

sudo pip install pre-commit

3. Go to repository root folder
4. Install the pre-commit hooks:

pre-commit install

5. Use pre-commit to check staged file:

pre-commit

6. Alternatively, you can check committed files using:

pre-commit run --from-ref <commit_id> --to-ref <commit_id>

[JibinBao]

Hi @SvyatDemn , does the branch 202311 support the test?