[Bug]: srv6/test_srv6_basic_sanity.py failed due to KeyError

[ZhaohuiS]

Issue Description

srv6/test_srv6_basic_sanity.py failed due to KeyError

Results you see

=================================== FAILURES ===================================
_________________________ test_interface_on_each_node __________________________

duthosts = [<MultiAsicSonicHost bjw2-can-8102-6>]
rand_one_dut_hostname = 'bjw2-can-8102-6'
nbrhosts = {'ARISTA01T1': <EosHost VM85115>, 'ARISTA02T1': <EosHost VM85116>, 'ARISTA03T1': <EosHost VM85117>, 'ARISTA04T1': <EosHost VM85118>}

    def test_interface_on_each_node(duthosts, rand_one_dut_hostname, nbrhosts):
        for vm_name in test_vm_names:
>           nbrhost = nbrhosts[vm_name]['host']
E           KeyError: 'PE1'

duthosts   = [<MultiAsicSonicHost bjw2-can-8102-6>]
nbrhosts   = {'ARISTA01T1': <EosHost VM85115>, 'ARISTA02T1': <EosHost VM85116>, 'ARISTA03T1': <EosHost VM85117>, 'ARISTA04T1': <EosHost VM85118>}
rand_one_dut_hostname = 'bjw2-can-8102-6'
vm_name    = 'PE1'

srv6/test_srv6_basic_sanity.py:81: KeyError

Results you expected to see

This case should be passed

Is it platform specific

generic

Relevant log output

srv6.test_srv6_basic_sanity.test_interface_on_each_node | failure | KeyError: 'PE1'
srv6.test_srv6_basic_sanity.test_check_bgp_neighbors | failure | KeyError: 'PE3'

Output of show version

No response

Attach files (if any)

No response

[ZhaohuiS]

#15564

To skip it for non cisco vs topologies.
This script should not run on any topologies.

pytest.mark.topology("any"),