Added skips by bugs to bgp, fib, snmp, ecn tests

tests/common/plugins/conditional_mark/tests_mark_conditions.yaml

@@ -2348,9 +2348,10 @@ fdb/test_fdb_mac_learning.py::TestFdbMacLearning::testFdbMacLearning:
 #######################################
 fib/test_fib.py:
   skip:
-    reason: 'Skip on t1-isolated-d32/128 topos'
+    reason: 'Skip on t1-isolated-d32/128 topos or due to github issue https://github.com/sonic-net/sonic-mgmt/issues/17930'
     conditions:
       - "topo_name in ['t1-isolated-d128', 't1-isolated-d32']"
+      - "https://github.com/sonic-net/sonic-mgmt/issues/17930 and topo_name in ['t1-isolated-d28u1']"
   xfail:
     reason: "Test case has issue on the t0-isolated-d256u256s2 topo."
     conditions:
@@ -2606,6 +2607,7 @@ generic_config_updater/test_ecn_config_update.py::test_ecn_config_updates:
       - "hwsku in ['Cisco-8800-LC-48H-C48']"
       - "topo_type in ['m0', 'mx', 'm1']"
       - "release in ['202211']"
+      - "https://github.com/sonic-net/sonic-buildimage/issues/22295 and platform in ['x86_64-nvidia_sn5600-r0', 'x86_64-nvidia_sn5640-r0']"
 
 generic_config_updater/test_eth_interface.py::test_replace_fec:
   skip:
@@ -4729,10 +4731,11 @@ snmp/test_snmp_queue.py:
 snmp/test_snmp_queue_counters.py:
   skip:
     conditions_logical_operator: OR
-    reason: "Have an known issue on kvm testbed / Unsupported in M* topos"
+    reason: "Have an known issue on kvm testbed / Unsupported in M* topos or issue #17929 on Mellanox platform"
     conditions:
       - "asic_type in ['vs'] and https://github.com/sonic-net/sonic-mgmt/issues/14007"
       - "topo_type in ['m0', 'mx', 'm1']"
+      - "https://github.com/sonic-net/sonic-mgmt/issues/17929 and asic_type in ['mellanox']"
   xfail:
     reason: "Test case has issue on the t0-isolated-d256u256s2 topo."
     conditions: