Routing on different network class in same LAN

in our cisco network, we have class C ip addresing Vlan 1 - 192.168.1.0/24 vlan 2 - 192.168.2.0/24

the in our new dell network (vxrail servers and dell switches) we have this vlan 100 - 172.16.100.0/24 vlan 101 - 172.16.101.0/24

for these 2 network to communicate, i created a new vlan (vlan 100 - 172.16.100.0/24 , vlan 101 - 172.16.101.0/24) in cisco network and trunk line between these devices.

everything seems to work out, but there are some instances that we cannot ping vlan100,101 in my PC(vlan 2), but can be pinged from different PC in our network with vlan 100/101 configured. is my setup possible or i'm missing something.