cumulus@SN3420M-01:mgmt:~$ ping -I mgmt 10.16.40.1
vrf-wrapper.sh: switching to vrf "default"; use '--no-vrf-switch' to disable
/usr/share/mgmt-vrf/bin/ping: Warning: source address might be selected on device other than: mgmt
PING 10.16.40.1 (10.16.40.1) from 10.16.40.29 mgmt: 56(84) bytes of data.
64 bytes from 10.16.40.1: icmp_seq=1 ttl=255 time=0.729 ms
64 bytes from 10.16.40.1: icmp_seq=2 ttl=255 time=0.726 ms
^C
cumulus@SN3420M-01:mgmt:~$ ip route show vrf mgmt
default via 10.16.40.1 dev eth0 proto kernel
unreachable default metric 4278198272
10.16.40.0/22 dev eth0 proto kernel scope link src 10.16.40.29
127.0.0.0/8 dev mgmt proto kernel scope link src 127.0.0.1
cumulus@SN3420M-01:mgmt:~$ ip vrf exec mgmt ping 10.16.40.1
vrf-wrapper.sh: switching to vrf "default"; use '--no-vrf-switch' to disable
/usr/share/mgmt-vrf/bin/ping: connect: Network is unreachable