E2E testcase functional issue

[yanmo96]

• Creat subnet 1
• Create VM 1,2 from subnet 1
• Create subnet 2
• Create port for subnet 2
• Create Router
• Attach subnet 1
• Attach subnet 2
• Create VM 3 with subnet 2 port

VM 1,2 are on different compute host, same subnet. Can ping each other VM 1,3 are on same compute host, in different subnet. Cann't ping each other