Fix test_route_perf

[bingwang-ms]

Description of PR

Summary:
This PR is to fix test_route_perf.

Test case test_route_perf failed on some platform (Like SN4600) because the added nexthop is a member of PortChannel.
orchagent will crash with following errors.

May 24 12:53:13.138090 str-msn4600c-acs-02 ERR syncd#SDK: [SAI_UTILS.ERR] mlnx_sai_utils.c[858]- check_port_type_attr: Port LAG member object id 16b0000000001 is not supported by attr id 2
May 24 12:53:13.138121 str-msn4600c-acs-02 ERR syncd#SDK: :- sendApiResponse: api SAI_COMMON_API_CREATE failed in syncd mode: SAI_STATUS_INVALID_PORT_NUMBER
May 24 12:53:13.138441 str-msn4600c-acs-02 ERR syncd#SDK: :- processQuadEvent: attr: SAI_ROUTER_INTERFACE_ATTR_VIRTUAL_ROUTER_ID: oid:0x3000000000010
May 24 12:53:13.138441 str-msn4600c-acs-02 ERR syncd#SDK: :- processQuadEvent: attr: SAI_ROUTER_INTERFACE_ATTR_SRC_MAC_ADDRESS: 1C:34:DA:1D:E4:00
May 24 12:53:13.138470 str-msn4600c-acs-02 ERR syncd#SDK: :- processQuadEvent: attr: SAI_ROUTER_INTERFACE_ATTR_TYPE: SAI_ROUTER_INTERFACE_TYPE_PORT
May 24 12:53:13.138470 str-msn4600c-acs-02 ERR syncd#SDK: :- processQuadEvent: attr: SAI_ROUTER_INTERFACE_ATTR_PORT_ID: oid:0x100000000095f
May 24 12:53:13.138491 str-msn4600c-acs-02 ERR syncd#SDK: :- processQuadEvent: attr: SAI_ROUTER_INTERFACE_ATTR_MTU: 9100
May 24 12:53:13.138667 str-msn4600c-acs-02 ERR swss#orchagent: :- create: create status: SAI_STATUS_INVALID_PORT_NUMBER
May 24 12:53:13.138667 str-msn4600c-acs-02 ERR swss#orchagent: :- addRouterIntfs: Failed to create router interface Ethernet8, rv:-9
May 24 12:53:13.139181 str-msn4600c-acs-02 INFO swss#/supervisord: orchagent terminate called after throwing an instance of 'std::runtime_error'
May 24 12:53:13.139181 str-msn4600c-acs-02 INFO swss#/supervisord: orchagent   what():  Failed to create router interface.

This PR fixes the issue by skipping interfaces that are already in PortChannels.

Signed-off-by: bingwang bingwang@microsoft.com

Type of change

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

Approach

What is the motivation for this PR?

This PR is to fix test_route_perf.

How did you do it?

This PR fixes the issue by skipping interfaces that are already in PortChannels.

How did you verify/test it?

Verified on SN4600, both T0 and T1 testbeds. All test case passed.

Any platform specific information?

No.

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

No.

Documentation

[bingwang-ms]

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