Ladakh800bcls: fix exception 'Update : update fib application to HW f…

[gang-tao]

…ailed' in test case
Pre-submission checklist

• [✓ ] I've ran the linters locally and fixed lint errors related to the files I modified in this PR. You can install the linters by running pip install -r requirements-dev.txt && pre-commit install
• [✓ ] pre-commit run

Summary

test case failed and report:
C++ exception with description "Update : update fib application to HW failed" thrown in the test body.

Motivation

The ports/interfaces generated by the test case are assigned to a specific NPU, but the routing is global. This means there is a route on one NPU that is not associated with the specific interface. To avoid abnormal exits, the route must be dropped—even for non-connected routes.

Test Plan

command

for filter in AgentL3ForwardingTest.linkLocalNeighborAndNextHop AgentL3ForwardingTest.ttl255 AgentCoppTest/0.UnresolvedRoutesToLowPriQueue AgentPacketSendTest.PortTxEnableTest AgentDscpQueueMappingTest.VerifyDscpQueueMapping AgentDscpQueueMappingTest.VerifyDscpQueueMappingChangePostWarmboot AgentDscpQueueMappingTest.VerifyDscpQueueMappingCanaryOff AgentAclAndDscpQueueMappingTest.VerifyAclAndQosMap AgentAclConflictAndDscpQueueMappingTest.VerifyAclAndQosMapConflict AgentOlympicQosTests.VerifyDscpQueueMapping AgentNetworkAIQosTests.VerifyDscpQueueMapping AgentPortBandwidthPpsTest.VerifyPps AgentPortBandwidthPpsTest.VerifyPpsDynamicChanges AgentSendPacketToQueueTest.SendPacketSwitchedToDefaultUCQueue ; do
  LD_LIBRARY_PATH=/opt/fboss/lib/ /root/gangtao/img/multi_switch_agent_hw_test \
  --gtest_filter=${filter} \
  --config /root/gangtao/cfg/link_test_config  \
  --platform_mapping_override_path /root/gangtao/cfg/ladakh800bc_platform_mapping_is_multi_npu.json-no-65 \
  --multi_npu_platform_mapping \
  --switch_id_for_testing 1 \
  --logging=DBG5 \
  2>&1 | tee /root/gangtao/log/multi_switch_agent-${TS}.log
done

result

[       OK ] AgentL3ForwardingTest.linkLocalNeighborAndNextHop (557381 ms)
[       OK ] AgentL3ForwardingTest.ttl255 (813313 ms)
[       OK ] AgentCoppTest/0.UnresolvedRoutesToLowPriQueue (546300 ms)
[       OK ] AgentPacketSendTest.PortTxEnableTest (483655 ms)
[       OK ] AgentDscpQueueMappingTest.VerifyDscpQueueMapping (596757 ms)
[       OK ] AgentDscpQueueMappingTest.VerifyDscpQueueMappingChangePostWarmboot (568970 ms)
[       OK ] AgentDscpQueueMappingTest.VerifyDscpQueueMappingCanaryOff (700448 ms)
[       OK ] AgentAclAndDscpQueueMappingTest.VerifyAclAndQosMap (1012629 ms)
[       OK ] AgentAclConflictAndDscpQueueMappingTest.VerifyAclAndQosMapConflict (696069 ms)
[       OK ] AgentOlympicQosTests.VerifyDscpQueueMapping (949254 ms)
[       OK ] AgentNetworkAIQosTests.VerifyDscpQueueMapping (514485 ms)
[       OK ] AgentPortBandwidthPpsTest.VerifyPps (1018090 ms)
[       OK ] AgentSendPacketToQueueTest.SendPacketSwitchedToDefaultUCQueue (847839 ms)
[       OK ] AgentPortBandwidthPpsTest.VerifyPpsDynamicChanges (785661 ms)

[meta-codesync]

@arunsarat has imported this pull request. If you are a Meta employee, you can view this in D92861125.