Hi Stanislav, Perhaps you are right (but from my point of view it is strange). And I can suggest the following configuration. We don't use vpp at all:
# ip netns add vpp1 # ip netns add vpp2 # ip link add veth1 type veth peer name veth2 # ip link set veth1 netns vpp1 # ip link set veth2 netns vpp2 # ip netns exec vpp1 ip link set veth1 up # ip netns exec vpp1 ip addr add 10.10.1.1/24 dev veth1 # ip netns exec vpp2 ip link set veth2 up # ip netns exec vpp2 ip addr add 10.10.1.2/24 dev veth2 # ip netns exec vpp1 ping 10.10.1.2 Ping works. Delete vpp2 netns: # ip netns delete vpp2 Ping stops. I think this is correct behavior.
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