Skip IPv6 mirror session on unsupported platforms in everflow_per_interface test (#22328)

Signed-off-by: bingwang <[email protected]>

Author: bingwang-ms

tests/everflow/test_everflow_per_interface.py

@@ -87,6 +87,12 @@ def build_acl_rule_vars(candidate_ports, ip_ver, erspan_ip_ver):  # noqa F811
 
 @pytest.fixture(scope='module')
 def apply_mirror_session(setup_info, erspan_ip_ver):  # noqa F811
+    duthost_set = BaseEverflowTest.get_duthost_set(setup_info)
+    for duthost in duthost_set:
+        # Skip IPv6 mirror session due to issue #19096
+        if duthost.facts['platform'] in ('x86_64-arista_7260cx3_64', 'x86_64-arista_7060_cx32s') and erspan_ip_ver == 6: # noqa E501
+            pytest.skip("Skip IPv6 mirror session on unsupported platforms")
+
     mirror_session_info = BaseEverflowTest.mirror_session_info(
         EVERFLOW_SESSION_NAME, setup_info[UP_STREAM]['everflow_dut'].facts["asic_type"])
     logger.info("Applying mirror session to DUT")