I have configured /31 ip on a vlan interface of cisco 3560. I can see arp of the device but can't ping and can't access to the device on the other side. the device can ping everything and does have access everything.
here is conf:
ip address 172.16.31.2 255.255.255.254
switchport access vlan 112
switchport mode access
I used to have 3550 and everything worked fine.