Are you running intervlan routing both at access layer as well as distribution layer? If yes you can just stop it on access layer and let is happen only at distribution layer if the interfaces re common at both the layers.
You can just say "no ip routing" to completely stop intervlan rotuing at access layer.
If you want to specifically stop for one interface which is vlan 30 you can just shut it down.
int vlan 30
shut---->this will shut the logical interface for vlan 30 at access layer
But still I do not got the concept of having inter vlan routing at both the layers?
I would say that if you do not want anything from that access layer switch to be routed using the VLAN 30 interface on your distribution level... just disallow VLAN 30 across the trunk connection between your access layer switch and your distribution layer.
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