Hi,
I believe you don't see the first packet loss when pinging vlan.20 IP [switch RVI] address from a vlan 5 host.
-W in my lab simulator:
-W ms Wait ms milliseconds to receive the response
I didn't notice any difference when using virtual-router.
What is the time taken for 1st ping from vlan.20 to vlan 20 host after clear arp? I think packet capture timestamps would show this, starting form the arp request.
Cheers,
Ashvin