Why I did it
This PR is to update TC_TO_QUEUE_MAP|AZURE for SKU Arista-7050CX3-32S-D48C8 and Arista-7260CX3 T0.
The change is only to align the TC_TO_QUEUE_MAP for regular traffic and bounced traffic. It has no impact on business because we have no traffic being mapped to TC2 or TC6.
How I did it
Update TC_TO_QUEUE_MAP|AZURE , and test cases as well.
How to verify it
Verified by running test case test_j2files.py
/sonic/src/sonic-config-engine$ python3 setup.py test -s tests/test_j2files.py
running test
......
----------------------------------------------------------------------
Ran 29 tests in 25.390s
OK
Why I did it
If the SWSS services was restarted, the MACsec service should also be restarted. Otherwise the data in wpa_supplicant and orchagent will not be consistent.
How I did it
Add dependency in docker-macsec.mk.
How to verify it
Manually check by 'sudo service swss restart'.
The MACsec container should be started after swss, the syslog will look like
Sep 8 14:36:29.562953 sonic INFO swss.sh[9661]: Starting existing swss container with HWSKU Force10-S6000
Sep 8 14:36:30.024399 sonic DEBUG container: container_start: BEGIN
...
Sep 8 14:36:33.391706 sonic INFO systemd[1]: Starting macsec container...
Sep 8 14:36:33.392925 sonic INFO systemd[1]: Starting Management Framework container...
Signed-off-by: Ze Gan <ganze718@gmail.com>
Why I did it
Approve step needs special permission settings.
We already added permission setting to enable bypass merging PR.
So, approve step is not necessary.
It could happen that a container has already crashed but docker-wait-any
will wait forever till it starts. It should, however, immediately exit
to make the serivce restart.
#### Why I did it
It is observed in some circumstances that the auto-restart mechanism does not work. Specifically for ```swss.service```, ```orchagent``` had crashed before ```docker-wait-any``` started in ```swss.sh```. This led ```docker-wait-any``` wait forever for ```swss``` to be in ```"Running"``` state and it results in:
```
CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES
1abef1ecebff bcbca2b74df6 "/usr/local/bin/supe…" 22 hours ago Up 22 hours what-just-happened
3c924d405cd5 docker-lldp:latest "/usr/bin/docker-lld…" 22 hours ago Up 22 hours lldp
eb2b12a98c13 docker-router-advertiser:latest "/usr/bin/docker-ini…" 22 hours ago Up 22 hours radv
d6aac4a46974 docker-sonic-mgmt-framework:latest "/usr/local/bin/supe…" 22 hours ago Up 22 hours mgmt-framework
d880fd07aab9 docker-platform-monitor:latest "/usr/bin/docker_ini…" 22 hours ago Up 22 hours pmon
75f9e22d4fdd docker-snmp:latest "/usr/local/bin/supe…" 22 hours ago Up 22 hours snmp
76d570a4bd1c docker-sonic-telemetry:latest "/usr/local/bin/supe…" 22 hours ago Up 22 hours telemetry
ee49f50344b3 docker-syncd-mlnx:latest "/usr/local/bin/supe…" 22 hours ago Up 22 hours syncd
1f0b0bab3687 docker-teamd:latest "/usr/local/bin/supe…" 22 hours ago Up 22 hours teamd
917aeeaf9722 docker-orchagent:latest "/usr/bin/docker-ini…" 22 hours ago Exited (0) 22 hours ago swss
81a4d3e820e8 docker-fpm-frr:latest "/usr/bin/docker_ini…" 22 hours ago Up 22 hours bgp
f6eee8be282c docker-database:latest "/usr/local/bin/dock…" 22 hours ago Up 22 hours database
```
The check for ```"Running"``` state is not needed because for cold boot case we do ```start_peer_and_dependent_services``` and for warm boot case the loop will retry to wait for container if this container is doing warm boot:
d01a91a569/files/image_config/misc/docker-wait-any (L56)
#### How I did it
Removed the check for ```"Running"```.
#### How to verify it
Kill swss before ```docker-wait-any``` is reached and verify auto restart will restart swss serivce.
- Why I did it
Update sonic-platform-daemons submodule pointer to include the following:
[ycabled] enable telemetry for 'active-active'; fix gRPC portid ordering (#284)
[ycabled] remove some spurious logs (#282)
Correct the peer forwarding state table (#281)
add psu input voltage and current (#276)
[ycabled] add capability to enable/disable telemetry (#279)
Signed-off-by: dprital <drorp@nvidia.com>
Update sonic-utilities submodule pointer to include the following:
Replace cmp in acl_loader with operator.eq (#2328)
Subinterface vrf bind issue fix (#2211)
[VRF]Adding CLI checks to ensure Vrf is valid in interface bind and static route commands (#2333)
[doc]: Add MACsec CLI doc (#2334)
[sonic-package-manager] Drop 'expires_in' (#2002)
Handle non-front-panel ports in is_rj45_port (#2327)
[service_mgmt]: Fix fetch MULTI_INST_DEPENDENT bug in service_mgmt.sh.j2 (#2319)
correct an error by changing "show bgp summary" to "show bfd summary" (#2324)
Update VRF unbind command (#2331)
Fix issue: port_type is referenced before initialized (#2323)
Fix issue: exception in is_rj45_port in multi ASIC env (#2313)
Delete .DS_Store (#2244)
Fix bug with checking VRF's routes in route_check.py (#2301)
[decode-syseeprom] Fix setting use_db based on support_eeprom_db (#2270)
Fix vrf UT failed issue (#2309)
add lacp_rate to portchannel (#2036)
- Why I did it
Remove extra empty lines in the SN2201 pg_profile_lookup.ini to make it aligned with other platforms.
This extra empty line could confuse some test cases which need to parse this file.
Signed-off-by: Kebo Liu <kebol@nvidia.com>
With this PR in, you flap BGP and use events_tool to see the published events.
With telemetry PR #111 in and corresponding submodule update done in buildimage, one could run gnmi_cli to capture BGP flap events.
* Define whether a test is required by code
Why I did it
Define whether a test job is required before merging by code.
Let the failure of multi-asic and t0-sonic don't block pr merge.
The 'required' configuration can be modified by the owner in the future.
How I did it
Required:
t1-lag, t0
Not required:
multi-asic, t0-sonic
How to verify it
AZP itself verifies it.
Signed-off-by: jianquanye@microsoft.com
* [mux] skip mux operations during warm shutdown
- Enhance write_standby.py script to skip actions during warm shutdown.
- Expand the support to BGP service.
- MuX support was added by a previous PR.
- don't skip action during warm recovery
Signed-off-by: Ying Xie <ying.xie@microsoft.com>
After pinging any failed IPv6 neighbor entries, set the remaining failed/incomplete entries to a permanent INCOMPLETE state. This manual setting to INCOMPLETE prevents these entries from automatically transitioning to FAILED state, and since they are now incomplete any subsequent NA messages for these neighbors is able to resolve the entry in the cache.
Signed-off-by: Lawrence Lee <lawlee@microsoft.com>
Why I did it
Address issue #10970
sign-off: Jing Zhang zhangjing@microsoft.com
How I did it
Add sonic-mux-cable.yang and unit tests.
How to verify it
Compile Compile target/python-wheels/sonic_yang_mgmt-1.0-py3-none-any.whl and target/python-wheels/sonic_yang_models-1.0-py3-none-any.whl.
Pass sonic-config-engine unit test.
Which release branch to backport (provide reason below if selected)
201811
201911
202006
202012
202106
202111
202205
Description for the changelog
Link to config_db schema for YANG module changes
f8fe41a023/src/sonic-yang-models/doc/Configuration.md (mux_cable)
Why I did it
In latest syncd container, it is installed bullseye, can't find command '/usr/bin/python'.
Some scripts such as test_copp still calls /usr/bin/python in syncd.
Submitted the change in #11807 for syncd docker, but it's better to add it in bullseye base docker.
How I did it
Install python-is-python3 package in bullseye base docker to resolve this issue, whatever run python or python3, it will run /usr/bin/python3, will not cause the error of can't find command '/usr/bin/python'
How to verify it
run python in syncd container.
Signed-off-by: Zhaohui Sun <zhaohuisun@microsoft.com>
Why I did it
After PFC interop testing between 8102 and 7050cx3, data packet losses were observed on the Rx ports of the 7050cx3 (inflow from 8102) during testing. This was primarily due to the slower response times to react to PFC pause packets for the 8102, when receiving such frames from neighboring devices. To solve for the packet drops, the 7050cx3 pg headroom size has to be increased to 160kB.
How I did it
Modified the xoff threshold value to 160kB in the pg_profile file to allow for the buffer manager to read that value when building the image, and configuring the device
How to verify it
run "mmuconfig -l" once image is built
Signed-off-by: dojha <devojha@microsoft.com>
Why I did it:
API get_device_runtime_metadata() added by #11795 uses merge operator for dict but that is supported only for python version >=3.9. This API will be be used by scrips eg:hostcfgd which is still build for buster which does not have python 3.9 support.
Why I did it
To gracefully unmount filesystems and stop containers while performing a cold reboot.
Unmount ONIE-BOOT if mounted during fast/soft/warm reboot
How I did it
Override systemd-reboot service to perform a cold reboot.
Unmount ONIE-BOOT if mounted using fast/soft/warm-reboot plugins.
How to verify it
On reboot, verify that the container stop and filesystem unmount services have completed execution before the platform reboot.
Why I did it
Fix the official build not triggered correctly issue, caused by the azp template path not existing.
How I did it
Change the azp template path.
Why I did it
Fix a build not stable issue: #11620
The vs vm has started successfully, but failed to wait for the message "sonic login:".
There were 55 builds failed caused by the issue in the last 30 days.
AzurePipelineBuildLogs
| where startTime > ago(30d)
| where type =~ "task"
| where result =~ "failed"
| where name =~ "Build sonic image"
| where content contains "Timeout exceeded"
| where content contains "re.compile('sonic login:')"
| project-away content
| extend branchName=case(reason=~"pullRequest", tostring(todynamic(parameters)['system.pullRequest.targetBranch']),
replace("refs/heads/", "", sourceBranch))
| summarize FailedCount=dcount(buildId) by branchName
branchName FailedCount
master 37
202012 9
202106 4
202111 2
202205 1
201911 1
It is caused by the login message mixed with the output message of the /etc/rc.local, one of the examples as below: (see the message rc.local[307]: sonic+ onie_disco_subnet=255.255.255.0 login: )
The check_install.py was waiting for the message "sonic login:", and Linux console was waiting for the username input (the login message has already printed in the console).
https://dev.azure.com/mssonic/build/_build/results?buildId=123294&view=logs&j=cef3d8a9-152e-5193-620b-567dc18af272&t=359769c4-8b5e-5976-a793-85da132e0a6f
2022-07-17T15:00:58.9198877Z [ 25.493855] rc.local[307]: + onie_disco_opt53=05
2022-07-17T15:00:58.9199330Z [ 25.595054] rc.local[307]: + onie_disco_router=10.0.2.2
2022-07-17T15:00:58.9199781Z [ 25.699409] rc.local[307]: + onie_disco_serverid=10.0.2.2
2022-07-17T15:00:58.9200252Z [ 25.789891] rc.local[307]: + onie_disco_siaddr=10.0.2.2
2022-07-17T15:00:58.9200622Z [ 25.880920]
2022-07-17T15:00:58.9200745Z
2022-07-17T15:00:58.9201019Z Debian GNU/Linux 10 sonic ttyS0
2022-07-17T15:00:58.9201201Z
2022-07-17T15:00:58.9201542Z rc.local[307]: sonic+ onie_disco_subnet=255.255.255.0 login:
2022-07-17T15:00:58.9202309Z [ 26.079767] rc.local[307]: + onie_exec_url=file://dev/vdb/onie-installer.bin
How I did it
Input a newline when finished to run the script /etc/rc.local.
If entering a newline, the message "sonic login:" will prompt again.
The current error handling code for when a deb package fails to be
installed currently has a chain of commands linked together by && and
ends with `exit 1`. The assumption is that the commands would succeed,
and the last `exit 1` would end it with a non-zero return code, thus
fully failing the target and causing the build to stop because of bash's
-e flag.
However, if one of the commands prior to `exit 1` returns a non-zero
return code, then bash won't actually treat it as a terminating error.
From bash's man page:
```
-e Exit immediately if a pipeline (which may consist of a single simple
command), a list, or a compound command (see SHELL GRAMMAR above),
exits with a non-zero status. The shell does not exit if the
command that fails is part of the command list immediately
following a while or until keyword, part of the test following the
if or elif reserved words, part of any command executed in a && or
|| list except the command following the final && or ||, any
command in a pipeline but the last, or if the command's return
value is being inverted with !. If a compound command other than a
subshell returns a non-zero status because a command failed while
-e was being ignored, the shell does not exit.
```
The part `part of any command executed in a && or || list except the
command following the final && or ||` says that if the failing command
is not the `exit 1` that we have at the end, then bash doesn't treat it
as an error and exit immediately. Additionally, since this is a compound
command, but isn't in a subshell (subshell are marked by `(` and `)`,
whereas `{` and `}` just tells bash to run the commands in the current
environment), bash doesn't exist. The result of this is that in the
deb-install target, if a package installation fails, it may be
infinitely stuck in that while-loop.
There are two fixes for this: change to using a subshell, or use `;`
instead of `&&`. Using a subshell would, I think, require exporting any
shell variables used in the subshell, so I chose to change the `&&` to
`;`. In addition, at the start of the subshell, `set +e` is added in,
which removes the exit-on-error handling of bash. This makes sure that
all commands are run (the output of which may help for debugging) and
that it still exits with 1, which will then fully fail the target.
Signed-off-by: Saikrishna Arcot <sarcot@microsoft.com>
Signed-off-by: Saikrishna Arcot <sarcot@microsoft.com>
* Update sensor names for msn4600c for the 5.10 kernel
Looks like a sensor was removed in the 5.10 kernel for the tps53679
sensor, so the names/indexing has changed.
Related to Azure/sonic-mgmt#4513.
Signed-off-by: Saikrishna Arcot <sarcot@microsoft.com>
* Update sensors file
Signed-off-by: Saikrishna Arcot <sarcot@microsoft.com>
Signed-off-by: Saikrishna Arcot <sarcot@microsoft.com>
#### Why I did it
Fix the build failure caused by the installer image size too small. The installer image is only used during the build, not impact the final images.
See https://dev.azure.com/mssonic/build/_build/results?buildId=139926&view=logs&j=cef3d8a9-152e-5193-620b-567dc18af272&t=359769c4-8b5e-5976-a793-85da132e0a6f
```
+ fallocate -l 2048M ./sonic-installer.img
+ mkfs.vfat ./sonic-installer.img
mkfs.fat 4.2 (2021-01-31)
++ mktemp -d
+ tmpdir=/tmp/tmp.TqdDSc00Cn
+ mount -o loop ./sonic-installer.img /tmp/tmp.TqdDSc00Cn
+ cp target/sonic-vs.bin /tmp/tmp.TqdDSc00Cn/onie-installer.bin
cp: error writing '/tmp/tmp.TqdDSc00Cn/onie-installer.bin': No space left on device
[ FAIL LOG END ] [ target/sonic-vs.img.gz ]
```
#### How I did it
Increase the size from 2048M to 4096M.
Why not increase to 16G like qcow2 image?
The qcow2 supports the sparse disk, although a big disk size allocated, but it will not consume the real disk size. The falocate does not support the sparse disk. We do not want to allocate a very big disk, but no use at all. It will require more space to build.
As part of PR #11754
Change was added to use variable SONIC_DB_NS_CLI for
namespace but that will not work since ./files/scripts/syncd_common.sh
uses SONIC_DB_CLI. So revert back to use SONIC_DB_CLI and define new
variable for SONIC_GLOBAL_DB_CLI for global/host db cli access
Also fixed DB_CLI not working for namespace.
Why I did it
Content of platform.json was outdated and some platform_tests/api of sonic-mgmt were failing.
How I did it
Added the necessary values to platform.json
How to verify it
Running platform_tests/api of sonic-mgmt should yield 100% passrate.
#### Why I did it
Structured events code like eventd, rsyslogplugin, requires changes made in swss-common
Submodule adds these newest commits:
56b0f18 (HEAD, origin/master, origin/HEAD, master) Events: APIs to set/get global options (#672)
5467c89 Add changes to yml file to improve pytest (#674)
#### How I did it
Updated git submodule
#### How to verify it
Check new commit pointer
2022-07-28 854d54e: Add support of mdio IPC server class using sai switch api and unix socket (sonic-net/sonic-sairedis#1080) (Jiahua Wang)
2022-07-27 513cb2a: [FlexCounter] Refactor FlexCounter class (sonic-net/sonic-sairedis#1073) (Junchao-Mellanox)
Why I did it
The directory /var/warmboot as top directory for warmboot feature is also needed in docker gbsyncd. Some vendor SAI might save data under it. Without it, the SAI init/creation API failure has happened on PikeZ platform.
How I did it
Mount host directory /host/warmboot as /var/warmboot in docker gbsyncd, which is same as what it has done on docker syncd.
Why I did it
S5296F - Platform API 2.0 changes
How I did it
Implemented the functional API's needed for Platform API 2.0
How to verify it
Used the API 2.0 test suite to validate the test cases.
Why I did it
VoQ chassis supervisor will have Fabric asics and the sub_role for fabric asics will be "Fabric".
The fabric asics namespaces are not being returned in get_all_namespaces() and is required in caclmgrd to add right cacl to allow internal docker traffic from fabric asic namespaces.
test_cacl_application fails on VoQ chassis Supervisor with the error:
Failed: Missing expected iptables rules: set(['-A INPUT -s 240.127.1.1/32 -d 240.127.1.1/32 -j ACCEPT', '-A INPUT -s 240.127.1.3/32 -d 240.127.1.1/32 -j ACCEPT', '-A INPUT -s 240.127.1.2/32 -d 240.127.1.1/32 -j ACCEPT'])
How I did it
Update get_all_namespaces to return fabric namespaces list.
How to verify it
Verified on VoQ chassis.
Why I did it
Address issue #10966
sign-off: Jing Zhang zhangjing@microsoft.com
How I did it
Add sonic-peer-switch.yang and unit tests.
How to verify it
Compile Compile target/python-wheels/sonic_yang_mgmt-1.0-py3-none-any.whl and target/python-wheels/sonic_yang_models-1.0-py3-none-any.whl.
Which release branch to backport (provide reason below if selected)
201811
201911
202006
202012
202106
202111
202205
Description for the changelog
Link to config_db schema for YANG module changes
b721ff87b9/src/sonic-yang-models/doc/Configuration.md (peer-switch)
#### Why I did it
This fixed memory leak in ETHERLIKE-MIB. The fix is not part of net-snmp(5.7.3 version). This PR includes the patch to fix memory leak issue.
```
ke->name in stdup-ed at line 297: n->name = strdup(RTA_DATA(tb[IFLA_IFNAME]));
```
#### How I did it
patched the fix.
[net-snmp] upstream fix link -> [snmpd}upstream link](ed4e48b5fa)
#### How to verify it
**Before The fix**
used valgrind to find memory leak.
```
root@lnos-x1-a-csw06:/# grep "definitely lost" valgrind-out.txt
==493== 4 bytes in 1 blocks are definitely lost in loss record 1 of 333
==493== 16 bytes in 1 blocks are definitely lost in loss record 25 of 333
==493== 757 bytes in 71 blocks are definitely lost in loss record 214 of 333
==493== 1,168 (32 direct, 1,136 indirect) bytes in 1 blocks are definitely lost in loss record 293 of 333
==493== 1,168 (32 direct, 1,136 indirect) bytes in 1 blocks are definitely lost in loss record 294 of 333
==493== 1,168 (32 direct, 1,136 indirect) bytes in 1 blocks are definitely lost in loss record 295 of 333
==493== 1,168 (32 direct, 1,136 indirect) bytes in 1 blocks are definitely lost in loss record 296 of 333
==493== definitely lost: 905 bytes in 77 blocks
```
_we can see the memory leak see in stack trace._
-> dot3stats_linux -> get_nlmsg -> strdup
https://github.com/net-snmp/net-snmp/blob/v5.7.3/agent/mibgroup/etherlike-mib/data_access/dot3stats_linux.chttps://github.com/net-snmp/net-snmp/blob/v5.7.3/agent/mibgroup/etherlike-mib/data_access/dot3stats_linux.c#L277
```
n = malloc(sizeof(*n));
memset(n, 0, sizeof(*n));
n->ifindex = ifi->ifi_index;
n->name = strdup(RTA_DATA(tb[IFLA_IFNAME]));
memcpy(&n->stats, RTA_DATA(tb[IFLA_STATS]), sizeof(n->stats));
n->next = kern_db;
kern_db = n;
return 0;
```
we were not freeing space for EtherLike-MIB.AS interface mib queries were getting increased, we see memory increment.
```
kern_db = ke->next;
free(ke);
```
https://github.com/net-snmp/net-snmp/blob/v5.7.3/agent/mibgroup/etherlike-mib/data_access/dot3stats_linux.c#L467
```
==55== 757 bytes in 71 blocks are definitely lost in loss record 186 of 299
==55== at 0x483577F: malloc (in /usr/lib/x86_64-linux-gnu/valgrind/vgpreload_memcheck-amd64-linux.so)
==55== by 0x4EB6E49: strdup (strdup.c:42)
==55== by 0x493F278: get_nlmsg (dot3stats_linux.c:299)
==55== by 0x493F529: rtnl_dump_filter_l.constprop.3 (dot3stats_linux.c:370)
==55== by 0x493FD7A: rtnl_dump_filter (dot3stats_linux.c:401)
==55== by 0x493FD7A: _dot3Stats_netlink_get_errorcntrs (dot3stats_linux.c:424)
==55== by 0x494009F: interface_dot3stats_get_errorcounters (dot3stats_linux.c:530)
==55== by 0x48F6FDA: dot3StatsTable_container_load (dot3StatsTable_data_access.c:330)
==55== by 0x485E76B: _cache_load (cache_handler.c:700)
==55== by 0x485FA37: netsnmp_cache_helper_handler (cache_handler.c:638)
==55== by 0x48720BC: netsnmp_call_handler (agent_handler.c:526)
==55== by 0x48720BC: netsnmp_call_next_handler (agent_handler.c:640)
==55== by 0x4865F75: table_helper_handler (table.c:717)
==55== by 0x4871B66: netsnmp_call_handler (agent_handler.c:526)
==55== by 0x4871B66: netsnmp_call_handlers (agent_handler.c:611)
757 bytes in 71 blocks are definitely lost in loss record 214 of 333
==493== at 0x483577F: malloc (in /usr/lib/x86_64-linux-gnu/valgrind/vgpreload_memcheck-amd64-linux.so)
==493== by 0x4EB6E49: strdup (strdup.c:42)
==493== by 0x493F278: ??? (in /usr/lib/x86_64-linux-gnu/libnetsnmpmibs.so.30.0.3)
==493== by 0x493F529: ??? (in /usr/lib/x86_64-linux-gnu/libnetsnmpmibs.so.30.0.3)
==493== by 0x493FD7A: _dot3Stats_netlink_get_errorcntrs (in /usr/lib/x86_64-linux-gnu/libnetsnmpmibs.so.30.0.3)
==493== by 0x494009F: interface_dot3stats_get_errorcounters (in /usr/lib/x86_64-linux-gnu/libnetsnmpmibs.so.30.0.3)
==493== by 0x48F6FDA: dot3StatsTable_container_load (in /usr/lib/x86_64-linux-gnu/libnetsnmpmibs.so.30.0.3)
==493== by 0x485E76B: _cache_load (cache_handler.c:700)
==493== by 0x485FA37: netsnmp_cache_helper_handler (cache_handler.c:638)
==493== by 0x48720BC: netsnmp_call_handler (agent_handler.c:526)
==493== by 0x48720BC: netsnmp_call_next_handler (agent_handler.c:640)
==493== by 0x4865F75: table_helper_handler (table.c:717)
==493== by 0x4871B66: netsnmp_call_handler (agent_handler.c:526)
==493== by 0x4871B66: netsnmp_call_handlers (agent_handler.c:611)
```
```
**After The fix**
no memory leak in valgrind stack trace related to etherlike MIB.
```
#### Why I did it
To deprecate swsssdk, remove all dependency to it.
#### How I did it
Remove swsssdk from rules and build image scripts.
#### How to verify it
Pass all UT and E2E test case
#### Which release branch to backport (provide reason below if selected)
<!--
- Note we only backport fixes to a release branch, *not* features!
- Please also provide a reason for the backporting below.
- e.g.
- [x] 202006
-->
- [ ] 201811
- [ ] 201911
- [ ] 202006
- [ ] 202012
- [ ] 202106
- [ ] 202111
- [ ] 202205
#### Description for the changelog
Remove swsssdk from rules and build image scripts.
#### Link to config_db schema for YANG module changes
<!--
Provide a link to config_db schema for the table for which YANG model
is defined
Link should point to correct section on https://github.com/Azure/sonic-buildimage/blob/master/src/sonic-yang-models/doc/Configuration.md
-->
#### A picture of a cute animal (not mandatory but encouraged)
